-*- coding: utf-8 -*- Changes with Apache 2.4.41 *) SECURITY: CVE-2019-10081 (cve.mitre.org) mod_http2: HTTP/2 very early pushes, for example configured with "H2PushResource", could lead to an overwrite of memory in the pushing request's pool, leading to crashes. The memory copied is that of the configured push link header values, not data supplied by the client. [Stefan Eissing] *) SECURITY: CVE-2019-9517 (cve.mitre.org) mod_http2: a malicious client could perform a DoS attack by flooding a connection with requests and basically never reading responses on the TCP connection. Depending on h2 worker dimensioning, it was possible to block those with relatively few connections. [Stefan Eissing] *) SECURITY: CVE-2019-10098 (cve.mitre.org) rewrite, core: Set PCRE_DOTALL flag by default to avoid unpredictable matches and substitutions with encoded line break characters. [Yann Ylavic] *) SECURITY: CVE-2019-10092 (cve.mitre.org) Remove HTML-escaped URLs from canned error responses to prevent misleading text/links being displayed via crafted links. [Eric Covener] *) SECURITY: CVE-2019-10097 (cve.mitre.org) mod_remoteip: Fix stack buffer overflow and NULL pointer deference when reading the PROXY protocol header. [Joe Orton, Daniel McCarney ] *) SECURITY: CVE-2019-10082 (cve.mitre.org) mod_http2: Using fuzzed network input, the http/2 session handling could be made to read memory after being freed, during connection shutdown. [Stefan Eissing] *) mod_proxy_balancer: Improve balancer-manager protection against XSS/XSRF attacks from trusted users. [Joe Orton, Niels Heinen ] *) mod_session: Introduce SessionExpiryUpdateInterval which allows to configure the session/cookie expiry's update interval. PR 57300. [Paul Spangler ] *) modules/filters: Fix broken compilation when using old GCC (<4.2.x). PR 63633. [Rainer Jung, Joe Orton] *) mod_ssl: Fix startup failure in 2.4.40 with SSLCertificateChainFile configured for a domain managed by mod_md. [Stefan Eissing] Changes with Apache 2.4.40 *) core, mod_rewrite: Set PCRE_DOTALL by default. Revert via RegexDefaultOptions -DOTALL [Yann Ylavic] *) core: Remove request details from built-in error documents [Eric Covener] *) mod_http2: core setting "LimitRequestFieldSize" is not additionally checked on merged header fields, just as HTTP/1.1 does. [Stefan Eissing, Michael Kaufmann] *) mod_http2: fixed a bug that prevented proper stream cleanup when connection throttling was in place. Stream resets by clients on streams initiated by them are counted as possible trigger for throttling. [Stefan Eissing] *) mod_http2/mpm_event: Fixes the behaviour when a HTTP/2 connection has nothing more to write with streams ongoing (flow control block). The timeout waiting for the client to send WINODW_UPDATE was incorrectly KeepAliveTimeout and not Timeout as it should be. Fixes PR 63534. [Yann Ylavic, Stefan Eissing] *) mod_proxy_balancer: Load balancer required byrequests when bytraffic chosen. PR 62372. [Jim Jagielski] *) mod_proxy_hcheck: Create the configuration for mod_proxy_hcheck when used in BalancerMember. PR 60757. [Jean-Frederic Clere] *) mod_proxy_hcheck: Mute extremely frequent debug message. [Yann Ylavic] *) mod_ssl/mod_md: reversing dependency by letting mod_ssl offer hooks for adding certificates and keys to a virtual host. An additional hook allows answering special TLS connections as used in ACME challenges. Adding 2 new hooks for init/get of OCSP stapling status information when other modules want to provide those. Falls back to own implementation with same behaviour as before. [Stefan Eissing] *) mod_md: new features - protocol - supports the ACMEv2 protocol. It is the default and will be used on the next certificate renewal, unless another "MDCertificateAuthority" is configured - ACMEv2 endpoints use the GET via empty POST way of accessing resources, see announcement by Let's Encrypt: https://community.letsencrypt.org/t/acme-v2-scheduled-deprecation-of-unauthenticated-resource-gets/74380 - challenges - new challenge method 'tls-alpn-01' implemented - challenge type 'tls-sni-01' has been removed as CAs do not offer this any longer - supports command configuration to setup/teardown 'dns-01' challenges - supports wildcard certificates when dns challenges are configured - status information and monitoring - a domain exposes its status at https:///.httpd/certificate-status - Managed Domains are now in Apache's 'server-status' page - A new handler 'md-status' exposes verbose status information in JSON format - new directives - "MDCertificateFile" and "MDCertificateKeyFile" to configure a Managed Domain that uses static files. Auto-renewal is turned off for those. - "MDMessageCmd" that is invoked on several events: 'renewed', 'expiring' and 'errored'. - "MDWarnWindow" directive to configure when expiration warnings shall be issued. [Stefan Eissing] *) mod_mime_magic: Fix possible corruption of returned strings. [Christophe Jaillet] *) Default "conf/magic": Fix pattern for "audio/x-wav" for WAV files, remove "audio/unknown" pattern for other RIFF files. [Àngel Ollé Blázquez ] *) mod_proxy_http2: fixing a potential NULL pointer use in logging. [Christophe Jaillet, Dr Silvio Cesare InfoSect] *) mod_dav: Reduce the amount of memory needed when doing PROPFIND's on large collections by improving the memory management. [Joe Orton, Ruediger Pluem] *) mod_proxy_http2: adding support for handling trailers in both directions. PR 63502. [Stefan Eissing] *) mod_proxy_http: forward 100-continue, and minimize race conditions when reusing backend connections. PR 60330. [Yann Ylavic, Jean-Frederic Clere] *) mod_proxy_balancer: Fix some HTML syntax issues. [Christophe Jaillet] *) When using mod_status with the Event MPM, report the number of requests associated with an active connection in the "ACC" field. Previously zero was always reported with this MPM. PR60647. [Eric Covener] *) mod_http2: remove the no longer existing h2_ngn_shed.c from Cmake. [Stefan Eissing] *) mod_proxy/ssl: Proxy SSL client certificate configuration and other proxy SSL configurations broken inside context. PR 63430. [Ruediger Pluem, Yann Ylavic] *) mod_proxy: allow SSLProxyCheckPeer* usage for all proxy modules. PR 61857. [Markus Gausling , Yann Ylavic] *) mod_reqtimeout: Fix default rates missing (not applied) in 2.4.39. PR 63325. [Yann Ylavic] *) mod_info: Fix output of server settings for PIPE_BUF in mod_info in the rare case that PIPE_BUF is defined. [Rainer Jung] *) mod_md: Store permissions are enforced on file creation, enforcing restrictions in spite of umask. Fixes . [Stefan Eissing] Changes with Apache 2.4.39 *) SECURITY: CVE-2019-0197 (cve.mitre.org) mod_http2: fixes a possible crash when HTTP/2 was enabled for a http: host or H2Upgrade was enabled for h2 on a https: host. An Upgrade request from http/1.1 to http/2 that was not the first request on a connection could lead to a misconfiguration and crash. Servers that never enabled the h2 protocol or only enabled it for https: and did not set "H2Upgrade on" are unaffected by this issue. [Stefan Eissing] *) SECURITY: CVE-2019-0196 (cve.mitre.org) mod_http2: using fuzzed network input, the http/2 request handling could be made to access freed memory in string comparision when determining the method of a request and thus process the request incorrectly. [Stefan Eissing] *) SECURITY: CVE-2019-0211 (cve.mitre.org) MPMs unix: Fix a local priviledge escalation vulnerability by not maintaining each child's listener bucket number in the scoreboard, preventing unprivileged code like scripts run by/on the server (e.g. via mod_php) from modifying it persistently to abuse the priviledged main process. [Charles Fol , Yann Ylavic] *) SECURITY: CVE-2019-0196 (cve.mitre.org) mod_http2: using fuzzed network input, the http/2 request handling could be made to access freed memory in string comparision when determining the method of a request and thus process the request incorrectly. [Stefan Eissing] *) SECURITY: CVE-2019-0217 (cve.mitre.org) mod_auth_digest: Fix a race condition checking user credentials which could allow a user with valid credentials to impersonate another, under a threaded MPM. PR 63124. [Simon Kappel ] *) SECURITY: CVE-2019-0215 (cve.mitre.org) mod_ssl: Fix access control bypass for per-location/per-dir client certificate verification in TLSv1.3. *) SECURITY: CVE-2019-0220 (cve.mitre.org) Merge consecutive slashes in URL's. Opt-out with `MergeSlashes OFF`. [Eric Covener] *) mod_proxy/ssl: Cleanup per-request SSL configuration anytime a backend connection is recycled/reused to avoid a possible crash with some SSLProxy configurations in or context. PR 63256. [Yann Ylavic] *) mod_log_config: Support %{c}h for conn-hostname, %h for useragent_host PR 55348 *) mod_socache_redis: Support for Redis as socache storage provider. *) core: new configuration option 'MergeSlashes on|off' that controls handling of multiple, consecutive slash ('/') characters in the path component of the request URL. [Eric Covener] *) mod_http2: when SSL renegotiation is inhibited and a 403 ErrorDocument is in play, the proper HTTP/2 stream reset did not trigger with H2_ERR_HTTP_1_1_REQUIRED. Fixed. [Michael Kaufmann] *) mod_http2: new configuration directive: `H2Padding numbits` to control padding of HTTP/2 payload frames. 'numbits' is a number from 0-8, controlling the range of padding bytes added to a frame. The actual number added is chosen randomly per frame. This applies to HEADERS, DATA and PUSH_PROMISE frames equally. The default continues to be 0, e.g. no padding. [Stefan Eissing] *) mod_http2: ripping out all the h2_req_engine internal features now that mod_proxy_http2 has no more need for it. Optional functions are still declared but no longer implemented. While previous mod_proxy_http2 will work with this, it is recommeneded to run the matching versions of both modules. [Stefan Eissing] *) mod_proxy_http2: changed mod_proxy_http2 implementation and fixed several bugs which resolve PR63170. The proxy module does now a single h2 request on the (reused) connection and returns. [Stefan Eissing] *) mod_http2/mod_proxy_http2: proxy_http2 checks correct master connection aborted status to trigger immediate shutdown of backend connections. This is now always signalled by mod_http2 when the the session is being released. proxy_http2 now only sends a PING frame to the backend when there is not already one in flight. [Stefan Eissing] *) mod_proxy_http2: fixed an issue where a proxy_http2 handler entered an infinite loop when encountering certain errors on the backend connection. See . [Stefan Eissing] *) mod_http2: Configuration directives H2Push and H2Upgrade can now be specified per Location/Directory, e.g. disabling PUSH for a specific set of resources. [Stefan Eissing] *) mod_http2: HEAD requests to some module such as mod_cgid caused the stream to terminate improperly and cause a HTTP/2 PROTOCOL_ERROR. Fixes . [Michael Kaufmann] *) http: Fix possible empty response with mod_ratelimit for HEAD requests. PR 63192. [Yann Ylavic] *) mod_cache_socache: Avoid reallocations and be safe with outgoing data lifetime. [Yann Ylavic] *) mod_http2: enable re-use of slave connections again. Fixed slave connection keepalives counter. [Stefan Eissing] *) mod_reqtimeout: Allow to configure (TLS-)handshake timeouts. PR 61310. [Yann Ylavic] *) core: Split out the ability to parse wildcard files and directories from the Include/IncludeOptional directives into a generic set of functions ap_dir_nofnmatch() and ap_dir_fnmatch(). [Graham Leggett] *) mod_proxy_wstunnel: Fix websocket proxy over UDS. PR 62932 *) mod_ssl: Don't unset FIPS mode on restart unless it's forced by configuration (SSLFIPS on) and not active by default in OpenSSL. PR 63136. [Yann Ylavic] Changes with Apache 2.4.38 *) SECURITY: CVE-2018-17199 (cve.mitre.org) mod_session: mod_session_cookie does not respect expiry time allowing sessions to be reused. [Hank Ibell] *) SECURITY: CVE-2018-17189 (cve.mitre.org) mod_http2: fixes a DoS attack vector. By sending slow request bodies to resources not consuming them, httpd cleanup code occupies a server thread unnecessarily. This was changed to an immediate stream reset which discards all stream state and incoming data. [Stefan Eissing] *) SECURITY: CVE-2019-0190 (cve.mitre.org) mod_ssl: Fix infinite loop triggered by a client-initiated renegotiation in TLSv1.2 (or earlier) with OpenSSL 1.1.1 and later. PR 63052. [Joe Orton] *) mod_ssl: Clear retry flag before aborting client-initiated renegotiation. PR 63052 [Joe Orton] *) mod_negotiation: Treat LanguagePriority as case-insensitive to match AddLanguage behavior and HTTP specification. PR 39730 [Christophe Jaillet] *) mod_md: incorrect behaviour when synchronizing ongoing ACME challenges have been fixed. [Michael Kaufmann, Stefan Eissing] *) mod_setenvif: We can have expressions that become true if a regex pattern in the expression does NOT match. In this case val is NULL and we should just set the value for the environment variable like in the pattern case. [Ruediger Pluem] *) mod_session: Always decode session attributes early. [Hank Ibell] *) core: Incorrect values for environment variables are substituted when multiple environment variables are specified in a directive. [Hank Ibell] *) mod_rewrite: Only create the global mutex used by "RewriteMap prg:" when this type of map is present in the configuration. PR62311. [Hank Ibell ] *) mod_dav: Fix invalid Location header when a resource is created by passing an absolute URI on the request line [Jim Jagielski] *) mod_session_cookie: avoid duplicate Set-Cookie header in the response. [Emmanuel Dreyfus , Luca Toscano] *) mod_ssl: clear *SSL errors before loading certificates and checking afterwards. Otherwise errors are reported when other SSL using modules are in play. Fixes PR 62880. [Michael Kaufmann] *) mod_ssl: Fix the error code returned in an error path of 'ssl_io_filter_handshake()'. This messes-up error handling performed in 'ssl_io_filter_error()' [Yann Ylavic] *) mod_ssl: Fix $HTTPS definition for "SSLEngine optional" case, and fix authz provider so "Require ssl" works correctly in HTTP/2. PR 61519, 62654. [Joe Orton, Stefan Eissing] *) mod_proxy: If ProxyPassReverse is used for reverse mapping of relative redirects, subsequent ProxyPassReverse statements, whether they are relative or absolute, may fail. PR 60408. [Peter Haworth ] *) mod_lua: Now marked as a stable module [https://s.apache.org/Xnh1] Changes with Apache 2.4.37 *) mod_ssl: Fix HTTP/2 failures when using OpenSSL 1.1.1. [Rainer Jung] *) mod_ssl: Fix crash during SSL renegotiation with OptRenegotiate set, when client certificates are available from the original handshake but were originally not verified and should get verified now. This is a regression in 2.4.36 (unreleased). [Ruediger Pluem] *) mod_ssl: Correctly merge configurations that have client certificates set by SSLProxyMachineCertificate{File|Path}. [Ruediger Pluem] Changes with Apache 2.4.36 *) mod_brotli, mod_deflate: Restore the separate handling of 304 Not Modified responses. Regression introduced in 2.4.35. *) mod_proxy_scgi, mod_proxy_uwsgi: improve error handling when sending the body of the response. [Jim Jagielski] *) mpm_event: Stop issuing AH00484 "server reached MaxRequestWorkers..." when there are still idle threads available. When there are less idle threads than MinSpareThreads, issue new one-time message AH10159. Matches worker MPM. [Eric Covener] *) mod_http2: adding defensive code for stream EOS handling, in case the request handler missed to signal it the normal way (eos buckets). Addresses github issues https://github.com/icing/mod_h2/issues/164, https://github.com/icing/mod_h2/issues/167 and https://github.com/icing/mod_h2/issues/170. [Stefan Eissing] *) ab: Add client certificate support. PR 55774. [Graham Leggett] *) ab: Disable printing temp key for OpenSSL before version 1.0.2. SSL_get_server_tmp_key is not available there. [Rainer Jung] *) mod_ssl: Fix a regression that the configuration settings for verify mode and verify depth were taken from the frontend connection in case of connections by the proxy to the backend. PR 62769. [Ruediger Pluem] *) MPMs: Initialize all runtime/asynchronous objects on a dedicated pool and before signals handling to avoid lifetime issues on restart or shutdown. PR 62658. [Yann Ylavic] *) mod_ssl: Add support for OpenSSL 1.1.1 and TLSv1.3. TLSv1.3 has behavioural changes compared to v1.2 and earlier; client and configuration changes should be expected. SSLCipherSuite is enhanced for TLSv1.3 ciphers, but applies at vhost level only. [Stefan Eissing, Yann Ylavic, Ruediger Pluem, Joe Orton] *) mod_auth_basic: Be less tolerant when parsing the credencial. Only spaces should be accepted after the authorization scheme. \t are also tolerated. [Christophe Jaillet] *) mod_socache_redis: New socache submodule provider to allow use of Redis as storage backend. [Jim Jagielski] *) mod_proxy_hcheck: Fix issues with interval determination. PR 62318 [Jim Jagielski] *) mod_proxy_hcheck: Fix issues with TCP health checks. PR 61499 [Dominik Stillhard ] *) mod_proxy_hcheck: take balancer's SSLProxy* directives into account. [Jim Jagielski] *) mod_status, mod_echo: Fix the display of client addresses. They were truncated to 31 characters which is not enough for IPv6 addresses. This is done by deprecating the use of the 'client' field and using the new 'client64' field in worker_score. PR 54848 [Bernhard Schmidt , Jim Jagielski] Changes with Apache 2.4.35 *) http: Enforce consistently no response body with both 204 and 304 statuses. [Yann Ylavic] *) mod_status: Cumulate CPU time of exited child processes in the "cu" and "cs" values. Add CPU time of the parent process to the "c" and "s" values. [Rainer Jung] *) mod_proxy: Improve the balancer member data shown in mod_status when "ProxyStatus" is "On": add "busy" count and show byte counts in auto mode always in units of kilobytes. [Rainer Jung] *) mod_status: Add cumulated response duration time in milliseconds. [Rainer Jung] *) mod_status: Complete the data shown for async MPMs in "auto" mode. Added number of processes, number of stopping processes and number of busy and idle workers. [Rainer Jung] *) mod_ratelimit: Don't interfere with "chunked" encoding, fixing regression introduced in 2.4.34. PR 62568. [Yann Ylavic] *) mod_proxy: Remove load order and link dependency between mod_lbmethod_* modules and mod_proxy. PR 62557. [Ruediger Pluem, William Rowe] *) Allow the argument to , , , , and to be quoted. This is primarily for the benefit of . [Eric Covener] *) mod_watchdog: Correct some log messages. [Rainer Jung] *) mod_md: When the last domain name from an MD is moved to another one, that now empty MD gets moved to the store archive. PR 62572. [Stefan Eissing] *) mod_ssl: Fix merging of SSLOCSPOverrideResponder. [Jeff Trawick, [Frank Meier ] *) mod_proxy_balancer: Restore compatibility with APR 1.4. [Joe Orton] Changes with Apache 2.4.34 *) SECURITY: CVE-2018-8011 (cve.mitre.org) mod_md: DoS via Coredumps on specially crafted requests *) SECURITY: CVE-2018-1333 (cve.mitre.org) mod_http2: DoS for HTTP/2 connections by specially crafted requests *) Introduce zh-cn and zh-tw (simplified and traditional Chinese) error document translations. [CodeingBoy, popcorner] *) event: avoid possible race conditions with modules on the child pool. [Stefan Fritsch] *) mod_proxy: Fix a corner case where the ProxyPassReverseCookieDomain or ProxyPassReverseCookiePath directive could fail to update correctly 'domain=' or 'path=' in the 'Set-Cookie' header. PR 61560. [Christophe Jaillet] *) mod_ratelimit: fix behavior when proxing content. PR 62362. [Luca Toscano, Yann Ylavic] *) core: Re-allow '_' (underscore) in hostnames. [Eric Covener] *) mod_authz_core: If several parameters are used in a AuthzProviderAlias directive, if these parameters are not enclosed in quotation mark, only the first one is handled. The other ones are silently ignored. Add a message to warn about such a spurious configuration. PR 62469 [Hank Ibell , Christophe Jaillet] *) mod_md: improvements and bugfixes - MDNotifyCmd now takes additional parameter that are passed on to the called command. - ACME challenges have better checks for interference with other modules - ACME challenges are only handled for domains managed by the module, allowing other ACME clients to operate for other domains in the server. - better libressl integration *) mod_proxy_wstunnel: Add default schema ports for 'ws' and 'wss'. PR 62480. [Lubos Uhliarik } *) logging: Some early logging-related startup messages could be lost when using syslog for the global ErrorLog. [Eric Covener] *) mod_cache: Handle case of an invalid Expires header value RFC compliant like the case of an Expires time in the past: allow to overwrite the non-caching decision using CacheStoreExpired and respect Cache-Control "max-age" and "s-maxage". [Rainer Jung] *) mod_xml2enc: Fix forwarding of error metadata/responses. PR 62180. [Micha Lenk , Yann Ylavic] *) mod_proxy_http: Fix response header thrown away after the previous one was considered too large and truncated. PR 62196. [Yann Ylavic] *) core: Add and handle AP_GETLINE_NOSPC_EOL flag for ap_getline() family of functions to consume the end of line when the buffer is exhausted. PR 62198. [Yann Ylavic] *) mod_proxy_http: Add new worker parameter 'responsefieldsize' to allow maximum HTTP response header size to be increased past 8192 bytes. PR 62199. [Hank Ibell ] *) mod_ssl: Extend SSLOCSPEnable with mode 'leaf' that only checks the leaf of a certificate chain. PR62112. [Ricardo Martin Camarero ] *) http: Fix small memory leak per request when handling persistent connections. [Ruediger Pluem, Joe Orton] *) mod_proxy_html: Fix variable interpolation and memory allocation failure in ProxyHTMLURLMap. PR 62344. [Ewald Dieterich ] *) mod_remoteip: Fix RemoteIP{Trusted,Internal}ProxyList loading broken by 2.4.30. PR 62220. [Chritophe Jaillet, Yann Ylavic] *) mod_remoteip: When overriding the useragent address from X-Forwarded-For, zero out what had been initialized as the connection-level port. PR59931. [Hank Ibell ] *) core: In ONE_PROCESS/debug mode, cleanup everything when exiting. [Yann Ylavic] *) mod_proxy_balancer: Add hot spare member type and corresponding flag (R). Hot spare members are used as drop-in replacements for unusable workers in the same load balancer set. This differs from hot standbys which are only used when all workers in a set are unusable. PR 61140. [Jim Riggs] *) suexec: Add --enable-suexec-capabilites support on Linux, to use setuid/setgid capability bits rather than a setuid root binary. [Joe Orton] *) suexec: Add support for logging to syslog as an alternative to logging to a file; use --without-suexec-logfile --with-suexec-syslog. [Joe Orton] *) mod_ssl: Restore 2.4.29 behaviour in SSL vhost merging/enabling which broke some rare but previously-working configs. [Joe Orton] *) core, log: improve sanity checks for the ErrorLog's syslog config, and explicitly allow only lowercase 'syslog' settings. PR 62102 [Luca Toscano, Jim Riggs, Christophe Jaillet] *) mod_http2: accurate reporting of h2 data input/output per request via mod_logio. Fixes an issue where output sizes where counted n-times on reused slave connections. [Stefan Eissing] See github issue: https://github.com/icing/mod_h2/issues/158 *) mod_http2: Fix unnecessary timeout waits in case streams are aborted. [Stefan Eissing] *) mod_http2: restoring the v1.10.16 keepalive timeout behaviour of mod_http2. [Stefan Eissing] *) mod_proxy: Do not restrict the maximum pool size for backend connections any longer by the maximum number of threads per process and use a better default if mod_http2 is loaded. [Yann Ylavic, Ruediger Pluem, Stefan Eissing, Gregg Smith] *) mod_slotmem_shm: Add generation number to shm filename to fix races with graceful restarts. PRs 62044 and 62308. [Jim Jagielski, Yann Ylavic] *) core: Preserve the original HTTP request method in the '%] *) mod_remoteip: make proxy-protocol work on slave connections, e.g. in HTTP/2 requests. [Stefan Eissing] See also https://github.com/roadrunner2/mod-proxy-protocol/issues/6 *) mod_ssl: Fix merging of proxy SSL context outside sections, regression introduced in 2.4.30. PR 62232. [Rainer Jung, Yann Ylavic] *) mod_md: Fix compilation with OpenSSL before version 1.0.2. [Rainer Jung] *) mod_dumpio: do nothing below log level TRACE7. [Yann Ylavic] *) mod_remoteip: Restore compatibility with APR 1.4 (apr_sockaddr_is_wildcard). [Eric Covener] *) core: On ECBDIC platforms, some errors related to oversized headers may be misreported or be logged as ASCII escapes. PR 62200 [Hank Ibell ] *) mod_ssl: Fix cmake-based build. PR 62266. [Rainer Jung] *) core: Add , and conditional section containers. [Eric Covener, Joe Orton] *) rotatelogs: Add -D option to create parent directories. PR 46669. [Philippe Lantin , Ben Reser, Rainer Jung] Changes with Apache 2.4.33 *) core: Fix request timeout logging and possible crash for error_log hooks. [Yann Ylavic] *) mod_slomem_shm: Fix failure to create balancers's slotmems in Windows MPM, where children processes need to attach them instead since they are owned by the parent process already. [Yann Ylavic] *) ab: try all destination socket addresses returned by apr_sockaddr_info_get instead of failing on first one when not available. Needed for instance if localhost resolves to both ::1 and 127.0.0.1 e.g. if both are in /etc/hosts. [Jan Kaluza] *) ab: Use only one connection to determine working destination socket address. [Jan Kaluza] *) ab: LibreSSL doesn't have or require Windows applink.c. [Gregg L. Smith] *) htpasswd/htdigest: Disable support for bcrypt on EBCDIC platforms. apr-util's bcrypt implementation doesn't tolerate EBCDIC. [Eric Covener] *) htpasswd/htdbm: report the right limit when get_password() overflows. [Yann Ylavic] *) htpasswd: Don't fail in -v mode if password file is unwritable. PR 61631. [Joe Orton] *) htpasswd: don't point to (unused) stack memory on output to make static analysers happy. PR 60634. [Yann Ylavic, reported by shqking and Zhenwei Zou] Changes with Apache 2.4.32 *) mod_access_compat: Fail if a comment is found in an Allow or Deny directive. [Jan Kaluza] *) mod_authz_host: Ignore comments after "Require host", logging a warning, or logging an error if the line is otherwise empty. [Jan Kaluza, Joe Orton] *) rotatelogs: Fix expansion of %Z in localtime (-l) mode, and fix Y2K38 bug. [Joe Orton] *) mod_ssl: Support SSL DN raw variable extraction without conversion to UTF-8, using _RAW suffix on variable names. [Joe Orton] *) ab: Fix https:// connection failures (regression in 2.4.30); fix crash generating CSV output for large -n. [Joe Orton, Jan Kaluza] Changes with Apache 2.4.31 (not released) *) mod_proxy_fcgi: Add the support for mod_proxy's flushpackets and flushwait parameters. [Luca Toscano, Ruediger Pluem, Yann Ylavic] *) mod_ldap: Avoid possible crashes, hangs, and busy loops due to improper merging of the cache lock in vhost config. PR 43164 [Eric Covener] *) mpm_event: Do lingering close in worker(s). [Yann Ylavic] *) mpm_queue: Put fdqueue code in common for MPMs event and worker. [Yann Ylavic] Changes with Apache 2.4.30 (not released) *) SECURITY: CVE-2017-15710 (cve.mitre.org) Out of bound write in mod_authnz_ldap with AuthLDAPCharsetConfig enabled [Eric Covener, Luca Toscano, Yann Ylavic] *) SECURITY: CVE-2018-1283 (cve.mitre.org) mod_session: CGI-like applications that intend to read from mod_session's 'SessionEnv ON' could be fooled into reading user-supplied data instead. [Yann Ylavic] *) SECURITY: CVE-2018-1303 (cve.mitre.org) mod_cache_socache: Fix request headers parsing to avoid a possible crash with specially crafted input data. [Ruediger Pluem] *) SECURITY: CVE-2018-1301 (cve.mitre.org) core: Possible crash with excessively long HTTP request headers. Impractical to exploit with a production build and production LogLevel. [Yann Ylavic] *) SECURITY: CVE-2017-15715 (cve.mitre.org) core: Configure the regular expression engine to match '$' to the end of the input string only, excluding matching the end of any embedded newline characters. Behavior can be changed with new directive 'RegexDefaultOptions'. [Yann Ylavic] *) SECURITY: CVE-2018-1312 (cve.mitre.org) mod_auth_digest: Fix generation of nonce values to prevent replay attacks across servers using a common Digest domain. This change may cause problems if used with round robin load balancers. PR 54637 [Stefan Fritsch] *) SECURITY: CVE-2018-1302 (cve.mitre.org) mod_http2: Potential crash w/ mod_http2. [Stefan Eissing] *) mod_proxy: Worker schemes and hostnames which are too large are no longer fatal errors; it is logged and the truncated values are stored. [Jim Jagielski] *) mod_proxy: Allow setting options to globally defined balancer from ProxyPass used in VirtualHost. Balancers are now merged using the new merge_balancers method which merges the balancers options. [Jan Kaluza] *) logresolve: Fix incorrect behavior or segfault if -c flag is used Fixes: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=823259 [Stefan Fritsch] *) mod_remoteip: Add support for PROXY protocol (code donated by Cloudzilla). Add ability for PROXY protocol processing to be optional to donated code. See also: http://www.haproxy.org/download/1.5/doc/proxy-protocol.txt [Cloudzilla/roadrunner2@GitHub, Jim Jagielski, Daniel Ruggeri] *) mod_proxy, mod_ssl: Handle SSLProxy* directives in sections, allowing per backend TLS configuration. [Yann Ylavic] *) mod_proxy_uwsgi: Add in UWSGI proxy (sub)module. [Roberto De Ioris, Jim Jagielski] *) mod_proxy_balancer,mod_slotmem_shm: Rework SHM reuse/deletion to not depend on the number of restarts (non-Unix systems) and preserve shared names as much as possible on configuration changes for SHMs and persisted files. PR 62044. [Yann Ylavic, Jim Jagielski] *) mod_http2: obsolete code removed, no more events on beam pool destruction, discourage content encoders on http2-status response (where they do not work). [Stefan Eissing] *) mpm_event: Let the listener thread do its maintenance job on resources shortage. PR 61979. [Yann Ylavic] *) mpm_event: Wakeup the listener to re-enable listening sockets. [Yann Ylavic] *) mod_ssl: The SSLCompression directive will now give an error if used with an OpenSSL build which does not support any compression methods. [Joe Orton] *) mpm_event,worker: Mask signals for threads created by modules in child init, so that they don't receive (implicitely) the ones meant for the MPM. PR 62009. [Armin Abfalterer , Yann Ylavic] *) mod_md: new experimental, module for managing domains across virtual hosts, implementing the Let's Encrypt ACMEv1 protocol to signup and renew certificates. Please read the modules documentation for further instructions on how to use it. [Stefan Eissing] *) mod_proxy_html: skip documents shorter than 4 bytes PR 56286 [Micha Lenk ] *) core, mpm_event: Avoid a small memory leak of the scoreboard handle, for the lifetime of the connection, each time it is processed by MPM event. [Yann Ylavic] *) mpm_event: Update scoreboard status for KeepAlive state. [Yann Ylavic] *) mod_ldap: Fix a case where a full LDAP cache would continually fail to purge old entries and log AH01323. PR61891. [Hendrik Harms ] *) mpm_event: close connections not reported as handled by any module to avoid losing track of them and leaking scoreboard entries. PR 61551. [Yann Ylavic] *) core: A signal received while stopping could have crashed the main process. PR 61558. [Yann Ylavic] *) mod_ssl: support for mod_md added. [Stefan Eissing] *) mod_proxy_html: process parsed comments immediately. Fixes bug (seen in the wild when used with IBM's HTTPD bundle) where parsed comments may be lost. [Nick Kew] *) mod_proxy_html: introduce doctype for HTML 5 [Nick Kew] *) mod_proxy_html: fix typo-bug processing "strict" vs "transitional" HTML/XHTML. PR 56457 [Nick Kew] *) mpm_event: avoid a very unlikely race condition between the listener and the workers when the latter fails to add a connection to the pollset. [Yann Ylavic] *) core: silently ignore a not existent file path when IncludeOptional is used. PR 57585. [Alberto Murillo Silva , Luca Toscano] *) mod_macro: fix usability of globally defined macros in .htaccess files. PR 57525. [Jose Kahan , Yann Ylavic] *) mod_rewrite, core: add the Vary header when a condition evaluates to true and the related RewriteRule is used in a Directory context (triggering an internal redirect). [Luca Toscano] *) ab: Make the TLS layer aware that the underlying socket is nonblocking, and use/handle POLLOUT where needed to avoid busy IOs and recover write errors when appropriate. [Yann Ylavic] *) ab: Keep reading nonblocking to exhaust TCP or SSL buffers when previous read was incomplete (the SSL case can cause the next poll() to timeout since data are buffered already). PR 61301 [Luca Toscano, Yann Ylavic] *) mod_http2: avoid unnecessary data retrieval for a trace log. Allow certain information retrievals on null bucket beams where it makes sense. [Stefan Eissing] Changes with Apache 2.4.29 *) mod_unique_id: Use output of the PRNG rather than IP address and pid, avoiding sleep() call and possible DNS issues at startup, plus improving randomness for IPv6-only hosts. [Jan Kaluza] *) mod_rewrite, core: Avoid the 'Vary: Host' response header when HTTP_HOST is used in a condition that evaluates to true. PR 58231 [Luca Toscano, Yann Ylavic] *) mod_http2: v0.10.12, removed optimization for mutex handling in bucket beams that could lead to assertion failure in edge cases. [Stefan Eissing] *) mod_proxy: Fix regression for non decimal loadfactor parameter introduced in 2.4.28. [Jim Jagielski] *) mod_authz_dbd: fix a segmentation fault if AuthzDBDQuery is not set. PR 61546. [Lubos Uhliarik ] *) mod_rewrite: Add support for starting External Rewriting Programs as non-root user on UNIX systems by specifying username and group name as third argument of RewriteMap directive. [Jan Kaluza] *) core: Rewrite the Content-Length filter to avoid excessive memory consumption. Chunked responses will be generated in more cases than in previous releases. PR 61222. [Joe Orton, Ruediger Pluem] *) mod_ssl: Fix SessionTicket callback return value, which does seem to matter with OpenSSL 1.1. [Yann Ylavic] Changes with Apache 2.4.28 *) SECURITY: CVE-2017-9798 (cve.mitre.org) Corrupted or freed memory access. must now be used in the main configuration file (httpd.conf) to register HTTP methods before the .htaccess files. [Yann Ylavic] *) event: Avoid possible blocking in the listener thread when shutting down connections. PR 60956. [Yann Ylavic] *) mod_speling: Don't embed referer data in a link in error page. PR 38923 [Nick Kew] *) htdigest: prevent a buffer overflow when a string exceeds the allowed max length in a password file. PR 61511. [Luca Toscano, Hanno Böck ] *) mod_proxy: loadfactor parameter can now be a decimal number (eg: 1.25). [Jim Jagielski] *) mod_proxy_wstunnel: Allow upgrade to any protocol dynamically. PR 61142. *) mod_watchdog/mod_proxy_hcheck: Time intervals can now be spefified down to the millisecond. Supports 'mi' (minute), 'ms' (millisecond), 's' (second) and 'hr' (hour!) time suffixes. [Jim Jagielski] *) mod_http2: Fix for stalling when more than 32KB are written to a suspended stream. [Stefan Eissing] *) build: allow configuration without APR sources. [Jacob Champion] *) mod_ssl, ab: Fix compatibility with LibreSSL. PR 61184. [Bernard Spil , Michael Schlenker , Yann Ylavic] *) core/log: Support use of optional "tag" in syslog entries. PR 60525. [Ben Rubson , Jim Jagielski] *) mod_proxy: Fix ProxyAddHeaders merging. [Joe Orton] *) core: Disallow multiple Listen on the same IP:port when listener buckets are configured (ListenCoresBucketsRatio > 0), consistently with the single bucket case (default), thus avoiding the leak of the corresponding socket descriptors on graceful restart. [Yann Ylavic] *) event: Avoid listener periodic wake ups by using the pollset wake-ability when available. PR 57399. [Yann Ylavic, Luca Toscano] *) mod_proxy_wstunnel: Fix detection of unresponded request which could have led to spurious HTTP 502 error messages sent on upgrade connections. PR 61283. [Yann Ylavic] Changes with Apache 2.4.27 *) SECURITY: CVE-2017-9789 (cve.mitre.org) mod_http2: Read after free. When under stress, closing many connections, the HTTP/2 handling code would sometimes access memory after it has been freed, resulting in potentially erratic behaviour. [Stefan Eissing] *) SECURITY: CVE-2017-9788 (cve.mitre.org) mod_auth_digest: Uninitialized memory reflection. The value placeholder in [Proxy-]Authorization headers type 'Digest' was not initialized or reset before or between successive key=value assignments. [William Rowe] *) COMPATIBILITY: mod_lua: Remove the undocumented exported 'apr_table' global variable when using Lua 5.2 or later. This was exported as a side effect from luaL_register, which is no longer supported as of Lua 5.2 which deprecates pollution of the global namespace. [Rainer Jung] *) COMPATIBILITY: mod_http2: Disable and give warning when using Prefork. The server will continue to run, but HTTP/2 will no longer be negotiated. [Stefan Eissing] *) COMPATIBILITY: mod_proxy_fcgi: Revert to 2.4.20 FCGI behavior for the default ProxyFCGIBackendType, fixing a regression with PHP-FPM. PR 61202. [Jacob Champion, Jim Jagielski] *) mod_lua: Improve compatibility with Lua 5.1, 5.2 and 5.3. PR58188, PR60831, PR61245. [Rainer Jung] *) mod_http2: Simplify ready queue, less memory and better performance. Update mod_http2 version to 1.10.7. [Stefan Eissing] *) Allow single-char field names inadvertently disallowed in 2.4.25. PR 61220. [Yann Ylavic] *) htpasswd / htdigest: Do not apply the strict permissions of the temporary passwd file to a possibly existing passwd file. PR 61240. [Ruediger Pluem] *) core: Avoid duplicate HEAD in Allow header. This is a regression in 2.4.24 (unreleased), 2.4.25 and 2.4.26. PR 61207. [Christophe Jaillet] Changes with Apache 2.4.26 *) SECURITY: CVE-2017-7679 (cve.mitre.org) mod_mime can read one byte past the end of a buffer when sending a malicious Content-Type response header. [Yann Ylavic] *) SECURITY: CVE-2017-7668 (cve.mitre.org) The HTTP strict parsing changes added in 2.2.32 and 2.4.24 introduced a bug in token list parsing, which allows ap_find_token() to search past the end of its input string. By maliciously crafting a sequence of request headers, an attacker may be able to cause a segmentation fault, or to force ap_find_token() to return an incorrect value. [Jacob Champion] *) SECURITY: CVE-2017-7659 (cve.mitre.org) A maliciously constructed HTTP/2 request could cause mod_http2 to dereference a NULL pointer and crash the server process. *) SECURITY: CVE-2017-3169 (cve.mitre.org) mod_ssl may dereference a NULL pointer when third-party modules call ap_hook_process_connection() during an HTTP request to an HTTPS port. [Yann Ylavic] *) SECURITY: CVE-2017-3167 (cve.mitre.org) Use of the ap_get_basic_auth_pw() by third-party modules outside of the authentication phase may lead to authentication requirements being bypassed. [Emmanuel Dreyfus , Jacob Champion, Eric Covener] *) HTTP/2 support no longer tagged as "experimental" but is instead considered fully production ready. *) mod_http2: Fix for possible CPU busy loop introduced in v1.10.3 where a stream may keep the session in continuous check for state changes that never happen. [Stefan Eissing] *) mod_proxy_wstunnel: Add "upgrade" parameter to allow upgrade to other protocols. [Jean-Frederic Clere] *) MPMs unix: Place signals handlers and helpers out of DSOs to avoid a possible crash if a signal is caught during (graceful) restart. PR 60487. [Yann Ylavic] *) mod_rewrite: When a substitution is a fully qualified URL, and the scheme/host/port matches the current virtual host, stop interpreting the path component as a local path just because the first component of the path exists in the filesystem. Adds RewriteOption "LegacyPrefixDocRoot" to revert to previous behavior. PR60009. [Hank Ibell ] *) core: ap_parse_form_data() URL-decoding doesn't work on EBCDIC platforms. PR61124. [Hank Ibell ] *) ab: enable option processing for setting a custom HTTP method also for non-SSL builds. [Rainer Jung] *) core: EBCDIC fixes for interim responses with additional headers. [Eric Covener] *) mod_env: when processing a 'SetEnv' directive, warn if the environment variable name includes a '='. It is likely a configuration error. PR 60249 [Christophe Jaillet] *) Evaluate nested If/ElseIf/Else configuration blocks. [Luca Toscano, Jacob Champion] *) mod_rewrite: Add 'BNP' (backreferences-no-plus) flag to RewriteRule to allow spaces in backreferences to be encoded as %20 instead of '+'. [Eric Covener] *) mod_rewrite: Add the possibility to limit the escaping to specific characters in backreferences by listing them in the B flag. [Eric Covener] *) mod_substitute: Fix spurious AH01328 (Line too long) errors on EBCDIC systems. [Eric Covener] *) mod_http2: fail requests without ERROR log in case we need to read interim responses and see only garbage. This can happen if proxied servers send data where none should be, e.g. a body for a HEAD request. [Stefan Eissing] *) mod_proxy_http2: adding support for Reverse Proxy Request headers. [Stefan Eissing] *) mod_http2: fixed possible deadlock that could occur when connections were terminated early with ongoing streams. Fixed possible hanger with timeout on race when connection considers itself idle. [Stefan Eissing] *) mod_http2: MaxKeepAliveRequests now limits the number of times a slave connection gets reused. [Stefan Eissing] *) mod_brotli: Add a new module for dynamic Brotli (RFC 7932) compression. [Evgeny Kotkov] *) mod_proxy_http2: Fixed bug in re-attempting proxy requests after connection error. Reliability of reconnect handling improved. [Stefan Eissing] *) mod_http2: better performance, eliminated need for nested locks and thread privates. Moving request setups from the main connection to the worker threads. Increase number of spare connections kept. [Stefan Eissing] *) mod_http2: input buffering and dynamic flow windows for increased throughput. Requires nghttp2 >= v1.5.0 features. Announced at startup in mod_http2 INFO log as feature 'DWINS'. [Stefan Eissing] *) mod_http2: h2 workers with improved scalability for better scheduling performance. There are H2MaxWorkers threads created at start and the number is kept constant for now. [Stefan Eissing] *) mod_http2: obsoleted option H2SessionExtraFiles, will be ignored and just log a warning. [Stefan Eissing] *) mod_autoindex: Add IndexOptions UseOldDateFormat to allow the date format from 2.2 in the Last Modified column. PR60846. [Hank Ibell ] *) core: Add %{REMOTE_PORT} to the expression parser. PR59938 [Hank Ibell ] *) mod_cache: Fix a regression in 2.4.25 for the forward proxy case by computing and using the same entity key according to when the cache checks, loads and saves the request. PR 60577. [Yann Ylavic] *) mod_proxy_hcheck: Don't validate timed out responses. [Yann Ylavic] *) mod_proxy_hcheck: Ensure thread-safety when concurrent healthchecks are in use (ProxyHCTPsize > 0). PR 60071. [Yann Ylavic, Jim Jagielski] *) core: %{DOCUMENT_URI} used in nested SSI expressions should point to the URI originally requsted by the user, not the nested documents URI. This restores the behavior of this variable to match the "legacy" SSI parser. PR60624. [Hank Ibell ] *) mod_proxy_fcgi: Add ProxyFCGISetEnvIf to fixup CGI environment variables just before invoking the FastCGI. [Eric Covener, Jacob Champion] *) mod_proxy_fcgi: Return to 2.4.20-and-earlier behavior of leaving a "proxy:fcgi://" prefix in the SCRIPT_FILENAME environment variable by default. Add ProxyFCGIBackendType to allow the type of backend to be specified so these kinds of fixups can be restored without impacting FPM. PR60576 [Eric Covener, Jim Jagielski] *) mod_ssl: work around leaks on (graceful) restart. [Yann Ylavic] *) mod_ssl: Add support for OpenSSL 1.1.0. [Rainer Jung] *) Don't set SO_REUSEPORT unless ListenCoresBucketsRatio is greater than zero. [Eric Covener] *) mod_http2: moving session cleanup to pre_close hook to avoid races with modules already shut down and slave connections still operating. [Stefan Eissing] *) mod_lua: Support for Lua 5.3 *) mod_proxy_http2: support for ProxyPreserverHost directive. [Stefan Eissing] *) mod_http2: fix for crash when running out of memory. [Robert Swiecki , Stefan Eissing] *) mod_proxy_fcgi: Return HTTP 504 rather than 503 in case of proxy timeout. [Luca Toscano] *) mod_http2: not counting file buckets again stream max buffer limits. Effectively transfering static files in one step from slave to master connection. [Stefan Eissing] *) mod_http2: comforting ap_check_pipeline() on slave connections to facilitate reuse (see https://github.com/icing/mod_h2/issues/128). [Stefan Eissing, reported by Armin Abfalterer] *) mod_http2: http/2 streams now with state handling/transitions as defined in RFC7540. Stream cleanup/connection shutdown reworked to become easier to understand/maintain/debug. Added many asserts on state and cleanup transitions. [Stefan Eissing] *) mod_auth_digest: Use an anonymous shared memory segment by default, preventing startup failure after unclean shutdown. PR 54622. [Jan Kaluza] *) mod_filter: Fix AddOutputFilterByType with non-content-level filters. PR 58856. [Micha Lenk ] *) mod_watchdog: Fix semaphore leak over restarts. [Jim Jagielski] *) mod_http2: regression fix on PR 59348, on graceful restart, ongoing streams are finished normally before the final GOAWAY is sent. [Stefan Eissing, ] *) mod_proxy: Allow the per-request environment variable "no-proxy" to be used as an alternative to ProxyPass /path !. This is primarily to set exceptions for ProxyPass specified in context. Use SetEnvIf, not SetEnv. PR 60458. [Eric Covener] *) mod_http2: fixes PR60599, sending proper response for conditional requests answered by mod_cache. [Jeff Wheelhouse, Stefan Eissing] *) mod_http2: rework of stream resource cleanup to avoid a crash in a close of a lingering connection. Prohibit special file bucket beaming for shared buckets. Files sent in stream output now use the stream pool as read buffer, reducing memory footprint of connections. [Yann Ylavic, Stefan Eissing] *) mod_proxy_fcgi, mod_fcgid: Fix crashes in ap_fcgi_encoded_env_len() when modules add empty environment variables to the request. PR 60275. [] *) mod_http2: fix for possible page fault when stream is resumed during session shutdown. [sidney-j-r-m (github)] *) mod_http2: fix for h2 session ignoring new responses while already open streams continue to have data available. [Stefan Eissing] *) mod_http2: adding support for MergeTrailers directive. [Stefan Eissing] *) mod_http2: limiting DATA frame sizes by TLS record sizes in use on the connection. Flushing outgoing frames earlier. [Stefan Eissing] *) mod_http2: cleanup beamer registry on server reload. PR 60510. [Pavel Mateja , Stefan Eissing] *) mod_proxy_{ajp,fcgi}: Fix a possible crash when reusing an established backend connection, happening with LogLevel trace2 or higher configured, or at any log level with compilers not detected as C99 compliant (e.g. MSVC on Windows). [Yann Ylavic] *) mod_ext_filter: Don't interfere with "error buckets" issued by other modules. PR 60375. [Eric Covener, Lubos Uhliarik] *) mod_http2: fixes https://github.com/icing/mod_h2/issues/126 e.g. beam bucket lifetime handling when data is sent over temporary pools. [Stefan Eissing] Changes with Apache 2.4.25 *) Fix some build issues related to various modules. [Rainer Jung] Changes with Apache 2.4.24 (not released) *) SECURITY: CVE-2016-8740 (cve.mitre.org) mod_http2: Mitigate DoS memory exhaustion via endless CONTINUATION frames. [Naveen Tiwari and CDF/SEFCOM at Arizona State University, Stefan Eissing] *) SECURITY: CVE-2016-2161 (cve.mitre.org) mod_auth_digest: Prevent segfaults during client entry allocation when the shared memory space is exhausted. [Maksim Malyutin , Eric Covener, Jacob Champion] *) SECURITY: CVE-2016-0736 (cve.mitre.org) mod_session_crypto: Authenticate the session data/cookie with a MAC (SipHash) to prevent deciphering or tampering with a padding oracle attack. [Yann Ylavic, Colm MacCarthaigh] *) SECURITY: CVE-2016-8743 (cve.mitre.org) Enforce HTTP request grammar corresponding to RFC7230 for request lines and request headers, to prevent response splitting and cache pollution by malicious clients or downstream proxies. [William Rowe, Stefan Fritsch] *) Validate HTTP response header grammar defined by RFC7230, resulting in a 500 error in the event that invalid response header contents are detected when serving the response, to avoid response splitting and cache pollution by malicious clients, upstream servers or faulty modules. [Stefan Fritsch, Eric Covener, Yann Ylavic] *) core: Mitigate [f]cgi CVE-2016-5387 "httpoxy" issues. [Dominic Scheirlinck , Yann Ylavic] *) mod_rewrite: Limit runaway memory use by short circuiting some kinds of looping RewriteRules when the local path significantly exceeds LimitRequestLine. PR 60478. [Jeff Wheelhouse ] *) mod_ratelimit: Allow for initial "burst" amount at full speed before throttling: PR 60145 [Andy Valencia , Jim Jagielski] *) mod_socache_memcache: Provide memcache stats to mod_status. [Jim Jagielski] *) mod_file_cache: mod_file_cache should be able to serve files that haven't had a Content-Type set via e.g. mod_mime. [Eric Covener] *) http_filters: Fix potential looping in new check_headers() due to new pattern of ap_die() from http header filter. Explicitly clear the previous headers and body. *) core: Drop Content-Length header and message-body from HTTP 204 responses. PR 51350 [Luca Toscano] *) mod_proxy: Honor a server scoped ProxyPass exception when ProxyPass is configured in , like in 2.2. PR 60458. [Eric Covener] *) mod_lua: Fix default value of LuaInherit directive. It should be 'parent-first' instead of 'none', as per documentation. PR 60419 [Christophe Jaillet] *) core: New directive HttpProtocolOptions to control httpd enforcement of various RFC7230 requirements. [Stefan Fritsch, William Rowe] *) core: Permit unencoded ';' characters to appear in proxy requests and Location: response headers. Corresponds to modern browser behavior. [William Rowe] *) core: ap_rgetline_core now pulls from r->proto_input_filters. *) core: Correctly parse an IPv6 literal host specification in an absolute URL in the request line. [Stefan Fritsch] *) core: New directive RegisterHttpMethod for registering non-standard HTTP methods. [Stefan Fritsch] *) mod_socache_memcache: Pass expiration time through to memcached. PR 55445. [Faidon Liambotis , Joe Orton] *) mod_cache: Use the actual URI path and query-string for identifying the cached entity (key), such that rewrites are taken into account when running afterwards (CacheQuickHandler off). PR 21935. [Yann Ylavic] *) mod_http2: new directive 'H2EarlyHints' to enable sending of HTTP status 103 interim responses. Disabled by default. [Stefan Eissing] *) mod_ssl: Fix quick renegotiation (OptRenegotiaton) with no intermediate in the client certificate chain. PR 55786. [Yann Ylavic] *) event: Allow to use the whole allocated scoreboard (up to ServerLimit slots) to avoid scoreboard full errors when some processes are finishing gracefully. Also, make gracefully finishing processes close all keep-alive connections. PR 53555. [Stefan Fritsch] *) mpm_event: Don't take over scoreboard slots from gracefully finishing threads. [Stefan Fritsch] *) mpm_event: Free memory earlier when shutting down processes. [Stefan Fritsch] *) mod_status: Display the process slot number in the async connection overview. [Stefan Fritsch] *) mod_dir: Responses that go through "FallbackResource" might appear to hang due to unterminated chunked encoding. PR58292. [Eric Covener] *) mod_dav: Fix a potential cause of unbounded memory usage or incorrect behavior in a routine that sends 's to the output filters. [Evgeny Kotkov] *) mod_http2: new directive 'H2PushResource' to enable early pushes before processing of the main request starts. Resources are announced to the client in Link headers on a 103 early hint response. All responses with status code <400 are inspected for Link header and trigger pushes accordingly. 304 still does prevent pushes. 'H2PushResource' can mark resources as 'critical' which gives them higher priority than the main resource. This leads to preferred scheduling for processing and, when content is available, will send it first. 'critical' is also recognized on Link headers. [Stefan Eissing] *) mod_proxy_http2: uris in Link headers are now mapped back to a suitable local url when available. Relative uris with an absolute path are mapped as well. This makes reverse proxy mapping available for resources announced in this header. With 103 interim responses being forwarded to the main client connection, this effectively allows early pushing of resources by a reverse proxied backend server. [Stefan Eissing] *) mod_proxy_http2: adding support for newly proposed 103 status code. [Stefan Eissing] *) mpm_unix: Apache fails to start if previously crashed then restarted with the same PID (e.g. in container). PR 60261. [Val , Yann Ylavic] *) mod_http2: unannounced and multiple interim responses (status code < 200) are parsed and forwarded to client until a final response arrives. [Stefan Eissing] *) mod_proxy_http2: improved robustness when main connection is closed early by resetting all ongoing streams against the backend. [Stefan Eissing] *) mod_http2: allocators from slave connections are released earlier, resulting in less overall memory use on busy, long lived connections. [Stefan Eissing] *) mod_remoteip: Pick up where we left off during a subrequest rather than running with the modified XFF but original TCP address. PR 49839/PR 60251 *) http: Respond with "408 Request Timeout" when a timeout occurs while reading the request body. [Yann Ylavic] *) mod_http2: connection shutdown revisited: corrected edge cases on shutting down ongoing streams, changed log warnings to be less noisy when waiting on long running tasks. [Stefan Eissing] *) mod_http2: changed all AP_DEBUG_ASSERT to ap_assert to have them available also in normal deployments. [Stefan Eissing] *) mod_http2/mod_proxy_http2: 100-continue handling now properly implemented up to the backend. Reused HTTP/2 proxy connections with more than a second not used will block request bodies until a PING answer is received. Requests headers are not delayed by this, since they are repeatable in case of failure. This greatly increases robustness, especially with busy server and/or low keepalive connections. [Stefan Eissing] *) mod_proxy_http2: fixed duplicate symbols with mod_http2. [Stefan Eissing] *) mod_http2: rewrite of how responses and trailers are transferred between master and slave connection. Reduction of internal states for tasks and streams, stability. Heuristic id generation for slave connections to better keep promise of connection ids unique at given point int time. Fix for mod_cgid interop in high load situtations. Fix for handling of incoming trailers when no request body is sent. [Stefan Eissing] *) mod_http2: fix suspended handling for streams. Output could become blocked in rare cases. [Stefan Eissing] *) mpm_winnt: Prevent a denial of service when the 'data' AcceptFilter is in use by replacing it with the 'connect' filter. PR 59970. [Jacob Champion] *) mod_cgid: Resolve a case where a short CGI response causes a subsequent CGI to be killed prematurely, resulting in a truncated subsequent response. [Eric Covener] *) mod_proxy_hcheck: Set health check URI and expression correctly for health check worker. PR 60038 [zdeno ] *) mod_http2: if configured with nghttp2 1.14.0 and onward, invalid request headers will immediately reset the stream with a PROTOCOL error. Feature logged by module on startup as 'INVHD' in info message. [Stefan Eissing] *) mod_http2: fixed handling of stream buffers during shutdown. [Stefan Eissing] *) mod_reqtimeout: Fix body timeout disabling for CONNECT requests to avoid triggering mod_proxy_connect's AH01018 once the tunnel is established. [Yann Ylavic] *) ab: Set the Server Name Indication (SNI) extension on outgoing TLS connections (unless -I is specified), according to the Host header (if any) or the requested URL's hostname otherwise. [Yann Ylavic] *) mod_proxy_fcgi: avoid loops when ProxyErrorOverride is enabled and the error documents are proxied. PR 55415. [Luca Toscano] *) mod_proxy_fcgi: read the whole FCGI response even when the content has not been modified (HTTP 304) or in case of a precondition failure (HTTP 412) to avoid subsequent bogus reads and confusing error messages logged. [Luca Toscano] *) mod_http2: h2 status resource follows latest draft, see http://www.ietf.org/id/draft-benfield-http2-debug-state-01.txt [Stefan Eissing] *) mod_http2: handling graceful shutdown gracefully, e.g. handling existing streams to the end. [Stefan Eissing] *) mod_proxy_{http,ajp,fcgi}: don't reuse backend connections with data available before the request is sent. PR 57832. [Yann Ylavic] *) mod_proxy_balancer: Prevent redirect loops between workers within a balancer by limiting the number of redirects to the number balancer members. PR 59864 [Ruediger Pluem] *) mod_proxy: Correctly consider error response codes by the backend when processing failonstatus. PR 59869 [Ruediger Pluem] *) mod_dav: Add dav_get_provider_name() function to obtain the name of the provider from mod_dav. [Graham Leggett] *) mod_dav: Add support for childtags to dav_error. [Jari Urpalainen ] *) mod_proxy_fcgi: Fix 2.4.23 breakage for mod_rewrite per-dir and query string showing up in SCRIPT_FILENAME. PR59815 *) mod_include: Fix a potential memory misuse while evaluating expressions. PR59844. [Eric Covener] *) mod_http2: new H2CopyFiles directive that changes treatment of file handles in responses. Necessary in order to fix broken lifetime handling in modules such as mod_wsgi. *) mod_http2: removing timeouts on master connection while requests are being processed. Requests may timeout, but the master only times out when no more requests are active. [Stefan Eissing] *) mod_http2: fixes connection flush when answering SETTINGS without any stream open. [Moto Ishizawa <@summerwind>, Stefan Eissing] Changes with Apache 2.4.23 *) mod_ssl: reset client-verify state of ssl when aborting renegotiations. [Erki Aring , Stefan Eissing] *) mod_sed: Fix 'x' command processing. [Christophe Jaillet] *) configure: Fix ./configure edge-case failures around dependencies of mod_proxy_hcheck. [William Rowe, Ruediger Pluem, Jeff Trawick] Changes with Apache 2.4.22 *) mod_http2: fix for request abort when connections drops, introduced in 1.5.8 Changes with Apache 2.4.21 *) core: Added support for HTTP code 451. PR 58985. [Yehuda Katz , Jim Jagielski] *) ab: Use caseless matching for HTTP tokens (e.g. content-length). PR 59111. [Yann Ylavic] *) mod_http2: more rigid error handling in DATA frame assembly, leading to deterministic connection errors if assembly fails. [Stefan Eissing, Pal Nilsen ] *) abs: Include OPENSSL_Applink when compiling on Windows, to resolve failures under Visual Studio 2015 and other mismatched MSVCRT flavors. PR59630 [Jan Ehrhardt ] *) mod_ssl: Add "no_crl_for_cert_ok" flag to SSLCARevocationCheck directive to opt-in previous behaviour (2.2) with CRLs verification when checking certificate(s) with no corresponding CRL. [Yann Ylavic] *) mpm_event, mpm_worker: Fix computation of MinSpareThreads' lower bound according the number of listeners buckets. [Yann Ylavic] *) Add ap_cstr_casecmp[n]() - placeholder of apr_cstr_casecmp[n] functions for case-insensitive C/POSIX-locale token comparison. [Jim Jagielski, William Rowe, Yann Ylavic, Branko Čibej] *) mod_userdir: Constify and save a few bytes in the conf pool when parsing the "UserDir" directive. [Christophe Jaillet] *) mod_cache: Fix (max-stale with no '=') and enforce (check integers after '=') Cache-Control header parsing. [Christophe Jaillet] *) core: Add -DDUMP_INCLUDES configtest option to show the tree of Included configuration files. [Jacob Champion ] *) mod_proxy_fcgi: Avoid passing a filename of proxy:fcgi:// as SCRIPT_FILENAME to a FastCGI server. PR59618. [Jacob Champion ] *) mod_dav: Add dav_get_provider_name() function to obtain the name of the provider from mod_dav. [Jari Urpalainen ] *) mod_proxy_http2: properly care for HTTP2 flow control of the frontend connection is HTTP/1.1. [Patch supplied by Evgeny Kotkov] *) mod_http2: improved cleanup of connection/streams/tasks to always have deterministic order regardless of event initiating it. Addresses reported crashes due to memory read after free issues. [Stefan Eissing] *) mod_ssl: Correct the interaction between SSLProxyCheckPeerCN and newer SSLProxyCheckPeerName directives since release 2.4.5, such that disabling either disables both, and that enabling either triggers the new, more comprehensive SSLProxyCheckPeerName behavior. Only a single configuration remains to enable the legacy behavior, which is to explicitly disable SSLProxyCheckPeerName, and enable SSLProxyCheckPeerCN. [William Rowe] *) mod_include: add the statements. [Christophe Jaillet] *) split-logfile: Fix perl error: 'Can't use string ("example.org:80") as a symbol ref while "strict refs"'. PR 56329. [Holger Mauermann ] *) mod_proxy: Prevent ProxyPassReverse from doing a substitution when the URL parameter interpolates to an empty string. PR 56603. [] *) core: Fix -D[efined] or [d] variables lifetime across restarts. PR 57328. [Armin Abfalterer , Yann Ylavic]. *) mod_proxy: Preserve original request headers even if they differ from the ones to be forwarded to the backend. PR 45387. [Yann Ylavic] *) mod_ssl: dump SSL IO/state for the write side of the connection(s), like reads (level TRACE4). [Yann Ylavic] *) mod_proxy_fcgi: Ignore body data from backend for 304 responses. PR 57198. [Jan Kaluza] *) mod_ssl: Do not crash when looking up SSL related variables during expression evaluation on non SSL connections. PR 57070 [Ruediger Pluem] *) mod_proxy_ajp: Fix handling of the default port (8009) in the ProxyPass and configurations. PR 57259. [Yann Ylavic] *) mpm_event: Avoid a possible use after free when notifying the end of connection during lingering close. PR 57268. [Eric Covener, Yann Ylavic] *) mod_ssl: Fix recognition of OCSP stapling responses that are encoded improperly or too large. [Jeff Trawick] *) core: Add ap_log_data(), ap_log_rdata(), etc. for logging buffers. [Jeff Trawick] *) mod_proxy_fcgi, mod_authnz_fcgi: stop reading the response and issue an error when parsing or forwarding the response fails. [Yann Ylavic] *) mod_ssl: Fix a memory leak in case of graceful restarts with OpenSSL >= 0.9.8e PR 53435 [tadanori , Sebastian Wiedenroth ] *) mod_proxy_connect: Don't issue AH02447 on sockets hangups, let the read determine whether it is a normal close or a real error. PR 57168. [Yann Ylavic] *) mod_proxy_wstunnel: abort backend connection on polling error to avoid further processing. [Yann Ylavic] *) core: Support custom ErrorDocuments for HTTP 501 and 414 status codes. PR 57167 [Edward Lu ] *) mod_proxy_connect: Fix ProxyRemote to https:// backends on EBCDIC systems. PR 57092 [Edward Lu ] *) mod_cache: Avoid a 304 response to an unconditional requst when an AH00752 CacheLock error occurs during cache revalidation. [Eric Covener] *) mod_ssl: Move OCSP stapling information from a per-certificate store to a per-server hash. PR 54357, PR 56919. [Alex Bligh , Yann Ylavic, Kaspar Brand] *) mod_cache_socache: Change average object size hint from 32 bytes to 2048 bytes. [Rainer Jung] *) mod_cache_socache: Add cache status to server-status. [Rainer Jung] *) event: Fix worker-listener deadlock in graceful restart. PR 56960. *) Concat strings at compile time when possible. PR 53741. *) mod_substitute: Restrict configuration in .htaccess to FileInfo as documented. [Rainer Jung] *) mod_substitute: Make maximum line length configurable. [Rainer Jung] *) mod_substitute: Fix line length limitation in case of regexp plus flatten. [Rainer Jung] *) mod_proxy: Truncated character worker names are no longer fatal errors. PR53218. [Jim Jagielski] *) mod_dav: Set r->status_line in dav_error_response. PR 55426. *) mod_proxy_http, mod_cache: Avoid (unlikely) accesses to freed memory. [Yann Ylavic, Christophe Jaillet] *) http_protocol: fix logic in ap_method_list_(add|remove) in order: - to correctly reset bits - not to modify the 'method_mask' bitfield unnecessarily [Christophe Jaillet] *) mod_slotmem_shm: Increase log level for some originally debug messages. [Jim Jagielski] *) mod_ldap: In 2.4.10, some LDAP searches or comparisons might be done with the wrong credentials when a backend connection is reused. [Eric Covener] *) mod_macro: Add missing APLOGNO for some Warning log messages. [Christophe Jaillet] *) mod_cache: Avoid sending 304 responses during failed revalidations PR56881. [Eric Covener] *) mod_status: Honor client IP address using mod_remoteip. PR 55886. [Jim Jagielski] *) cmake-based build for Windows: Fix incompatibility with cmake 2.8.12 and later. PR 56615. [Chuck Liu , Jeff Trawick] *) mod_ratelimit: Drop severity of AH01455 and AH01457 (ap_pass_brigade failed) messages from ERROR to TRACE1. Other filters do not bother re-reporting failures from lower level filters. PR56832. [Eric Covener] *) core: Avoid useless warning message when parsing a section guarded by if $(foo) is used within the section. PR 56503 [Christophe Jaillet] *) mod_proxy_fcgi: Fix faulty logging of large amounts of stderr from the application. PR 56858. [Manuel Mausz ] *) mod_proxy_http: Proxy responses with error status and "ProxyErrorOverride On" hang until proxy timeout. PR53420 [Rainer Jung] *) mod_log_config: Allow three character log formats to be registered. For backwards compatibility, the first character of a three-character format must be the '^' (caret) character. [Eric Covener] *) mod_lua: Don't quote Expires and Path values. PR 56734. [Keith Mashinter, ] *) mod_authz_core: Allow 'es to be seen from auth stanzas under virtual hosts. PR 56870. [Eric Covener] Changes with Apache 2.4.10 *) SECURITY: CVE-2014-0117 (cve.mitre.org) mod_proxy: Fix crash in Connection header handling which allowed a denial of service attack against a reverse proxy with a threaded MPM. [Ben Reser] *) SECURITY: CVE-2014-3523 (cve.mitre.org) Fix a memory consumption denial of service in the WinNT MPM, used in all Windows installations. Workaround: AcceptFilter {none|connect} [Jeff Trawick] *) SECURITY: CVE-2014-0226 (cve.mitre.org) Fix a race condition in scoreboard handling, which could lead to a heap buffer overflow. [Joe Orton, Eric Covener] *) SECURITY: CVE-2014-0118 (cve.mitre.org) mod_deflate: The DEFLATE input filter (inflates request bodies) now limits the length and compression ratio of inflated request bodies to avoid denial of service via highly compressed bodies. See directives DeflateInflateLimitRequestBody, DeflateInflateRatioLimit, and DeflateInflateRatioBurst. [Yann Ylavic, Eric Covener] *) SECURITY: CVE-2014-0231 (cve.mitre.org) mod_cgid: Fix a denial of service against CGI scripts that do not consume stdin that could lead to lingering HTTPD child processes filling up the scoreboard and eventually hanging the server. By default, the client I/O timeout (Timeout directive) now applies to communication with scripts. The CGIDScriptTimeout directive can be used to set a different timeout for communication with scripts. [Rainer Jung, Eric Covener, Yann Ylavic] *) mod_ssl: Extend the scope of SSLSessionCacheTimeout to sessions resumed by TLS session resumption (RFC 5077). [Rainer Jung] *) mod_deflate: Don't fail when flushing inflated data to the user-agent and that coincides with the end of stream ("Zlib error flushing inflate buffer"). PR 56196. [Christoph Fausak ] *) mod_proxy_ajp: Forward local IP address as a custom request attribute like we already do for the remote port. [Rainer Jung] *) core: Include any error notes set by modules in the canned error response for 403 errors. [Jeff Trawick] *) mod_ssl: Set an error note for requests rejected due to SSLStrictSNIVHostCheck. [Jeff Trawick] *) mod_ssl: Fix issue with redirects to error documents when handling SNI errors. [Jeff Trawick] *) mod_ssl: Fix tmp DH parameter leak, adjust selection to prefer larger keys and support up to 8192-bit keys. [Ruediger Pluem, Joe Orton] *) mod_dav: Fix improper encoding in PROPFIND responses. PR 56480. [Ben Reser] *) WinNT MPM: Improve error handling for termination events in child. [Jeff Trawick] *) mod_proxy: When ping/pong is configured for a worker, don't send or forward "100 Continue" (interim) response to the client if it does not expect one. [Yann Ylavic] *) mod_ldap: Be more conservative with the last-used time for LDAPConnectionPoolTTL. PR54587 [Eric Covener] *) mod_ldap: LDAP connections used for authn were not respecting LDAPConnectionPoolTTL. PR54587 [Eric Covener] *) mod_proxy_fcgi: Fix occasional high CPU when handling request bodies. [Jeff Trawick] *) event MPM: Fix possible crashes (third-party modules accessing c->sbh) or occasional missed mod_status updates under load. PR 56639. [Edward Lu ] *) mod_authnz_ldap: Support primitive LDAP servers do not accept filters, such as "SDBM-backed LDAP" on z/OS, by allowing a special filter "none" to be specified in AuthLDAPURL. [Eric Covener] *) mod_deflate: Fix inflation of files larger than 4GB. PR 56062. [Lukas Bezdicka ] *) mod_deflate: Handle Zlib header and validation bytes received in multiple chunks. PR 46146. [Yann Ylavic] *) mod_proxy: Allow reverse-proxy to be set via explicit handler. [ryo takatsuki ] *) ab: support custom HTTP method with -m argument. PR 56604. [Roman Jurkov ] *) mod_proxy_balancer: Correctly encode user provided data in management interface. PR 56532 [Maksymilian, ] *) mod_proxy: Don't limit the size of the connectable Unix Domain Socket paths. [Graham Dumpleton, Christophe Jaillet, Yann Ylavic] *) mod_proxy_fcgi: Support iobuffersize parameter. [Jeff Trawick] *) event: Send the SSL close notify alert when the KeepAliveTimeout expires. PR54998. [Yann Ylavic] *) mod_ssl: Ensure that the SSL close notify alert is flushed to the client. PR54998. [Tim Kosse , Yann Ylavic] *) mod_proxy: Shutdown (eg. SSL close notify) the backend connection before closing. [Yann Ylavic] *) mod_auth_form: Add a debug message when the fields on a form are not recognised. [Graham Leggett] *) mod_cache: Preserve non-cacheable headers forwarded from an origin 304 response. PR 55547. [Yann Ylavic] *) mod_proxy_wstunnel: Fix the use of SSL connections with the "wss:" scheme. PR55320. [Alex Liu ] *) mod_socache_shmcb: Correct counting of expirations for status display. Expirations happening during retrieval were not counted. [Rainer Jung] *) mod_cache: Retry unconditional request with the full URL (including the query-string) when the origin server's 304 response does not match the conditions used to revalidate the stale entry. [Yann Ylavic]. *) mod_alias: Stop setting CONTEXT_PREFIX and CONTEXT_DOCUMENT environment variables as a result of AliasMatch. [Eric Covener] *) mod_cache: Don't add cached/revalidated entity headers to a 304 response. PR 55547. [Yann Ylavic] *) mod_proxy_scgi: Support Unix sockets. ap_proxy_port_of_scheme(): Support default SCGI port (4000). [Jeff Trawick] *) mod_cache: Fix AH00784 errors on Windows when the the CacheLock directive is enabled. [Eric Covener] *) mod_expires: don't add Expires header to error responses (4xx/5xx), be they generated or forwarded. PR 55669. [Yann Ylavic] *) mod_proxy_fcgi: Don't segfault when failing to connect to the backend. (regression in 2.4.9 release) [Jeff Trawick] *) mod_authn_socache: Fix crash at startup in certain configurations. PR 56371. (regression in 2.4.7) [Jan Kaluza] *) mod_ssl: restore argument structure for "exec"-type SSLPassPhraseDialog programs to the form used in releases up to 2.4.7, and emulate a backwards-compatible behavior for existing setups. [Kaspar Brand] *) mod_ssl: Add SSLOCSPUseRequestNonce directive to control whether or not OCSP requests should use a nonce to be checked against the responder's one. PR 56233. [Yann Ylavic, Kaspar Brand] *) mod_ssl: "SSLEngine off" will now override a Listen-based default and does disable mod_ssl for the vhost. [Joe Orton] *) mod_lua: Enforce the max post size allowed via r:parsebody() [Daniel Gruno] *) mod_lua: Use binary comparison to find boundaries for multipart objects, as to not terminate our search prematurely when hitting a NULL byte. [Daniel Gruno] *) mod_ssl: add workaround for SSLCertificateFile when using OpenSSL versions before 0.9.8h and not specifying an SSLCertificateChainFile (regression introduced with 2.4.8). PR 56410. [Kaspar Brand] *) mod_ssl: bring SNI behavior into better conformance with RFC 6066: no longer send warning-level unrecognized_name(112) alerts, and limit startup warnings to cases where an OpenSSL version without TLS extension support is used. PR 56241. [Kaspar Brand] *) mod_proxy_html: Avoid some possible memory access violation in case of specially crafted files, when the ProxyHTMLMeta directive is turned on. Follow up of PR 56287 [Christophe Jaillet] *) mod_auth_form: Make sure the optional functions are loaded even when the AuthFormProvider isn't specified. [Graham Leggett] *) mod_ssl: avoid processing bogus SSLCertificateKeyFile values (and logging garbled file names). PR 56306. [Kaspar Brand] *) mod_ssl: fix merging of global and vhost-level settings with the SSLCertificateFile, SSLCertificateKeyFile, and SSLOpenSSLConfCmd directives. PR 56353. [Kaspar Brand] *) mod_headers: Allow the "value" parameter of Header and RequestHeader to contain an ap_expr expression if prefixed with "expr=". [Eric Covener] *) rotatelogs: Avoid creation of zombie processes when -p is used on Unix platforms. [Joe Orton] *) mod_authnz_fcgi: New module to enable FastCGI authorizer applications to authenticate and/or authorize clients. [Jeff Trawick] *) mod_proxy: Do not try to parse the regular expressions passed by ProxyPassMatch as URL as they do not follow their syntax. PR 56074. [Ruediger Pluem] *) mod_reqtimeout: Resolve unexpected timeouts on keepalive requests under the Event MPM. PR56216. [Frank Meier ] *) mod_proxy_fcgi: Fix sending of response without some HTTP headers that might be set by filters. PR 55558. [Jim Riggs ] *) mod_proxy_html: Do not delete the wrong data from HTML code when a "http-equiv" meta tag specifies a Content-Type behind any other "http-equiv" meta tag. PR 56287 [Micha Lenk ] *) mod_proxy: Don't reuse a SSL backend connection whose requested SNI differs. PR 55782. [Yann Ylavic] *) Add suspend_connection and resume_connection hooks to notify modules when the thread/connection relationship changes. (Should be implemented for any third-party async MPMs.) [Jeff Trawick] *) mod_proxy_wstunnel: Don't issue AH02447 and log a 500 on routine hangups from websockets origin servers. PR 56299 [Yann Ylavic, Edward Lu , Eric Covener] *) mod_proxy_wstunnel: Don't pool backend websockets connections, because we need to handshake every time. PR 55890. [Eric Covener] *) mod_lua: Redesign how request record table access behaves, in order to utilize the request record from within these tables. [Daniel Gruno] *) mod_lua: Add r:wspeek for peeking at WebSocket frames. [Daniel Gruno] *) mod_lua: Log an error when the initial parsing of a Lua file fails. [Daniel Gruno, Felipe Daragon ] *) mod_lua: Reformat and escape script error output. [Daniel Gruno, Felipe Daragon ] *) mod_lua: URL-escape cookie keys/values to prevent tainted cookie data from causing response splitting. [Daniel Gruno, Felipe Daragon ] *) mod_lua: Disallow newlines in table values inside the request_rec, to prevent HTTP Response Splitting via tainted headers. [Daniel Gruno, Felipe Daragon ] *) mod_lua: Remove the non-working early/late arguments for LuaHookCheckUserID. [Daniel Gruno] *) mod_lua: Change IVM storage to use shm [Daniel Gruno] *) mod_lua: More verbose error logging when a handler function cannot be found. [Daniel Gruno] Changes with Apache 2.4.9 *) mod_ssl: Work around a bug in some older versions of OpenSSL that would cause a crash in SSL_get_certificate for servers where the certificate hadn't been sent. [Stephen Henson] *) mod_lua: Add a fixups hook that checks if the original request is intended for LuaMapHandler. This fixes a bug where FallbackResource invalidates the LuaMapHandler directive in certain cases by changing the URI before the map handler code executes [Daniel Gruno, Daniel Ferradal ]. Changes with Apache 2.4.8 (not released) *) SECURITY: CVE-2014-0098 (cve.mitre.org) Clean up cookie logging with fewer redundant string parsing passes. Log only cookies with a value assignment. Prevents segfaults when logging truncated cookies. [William Rowe, Ruediger Pluem, Jim Jagielski] *) SECURITY: CVE-2013-6438 (cve.mitre.org) mod_dav: Keep track of length of cdata properly when removing leading spaces. Eliminates a potential denial of service from specifically crafted DAV WRITE requests [Amin Tora ] *) core: Support named groups and backreferences within the LocationMatch, DirectoryMatch, FilesMatch and ProxyMatch directives. (Requires non-ancient PCRE library) [Graham Leggett] *) core: draft-ietf-httpbis-p1-messaging-23 corrections regarding TE/CL conflicts. [Yann Ylavic, Jim Jagielski] *) core: Detect incomplete request and response bodies, log an error and forward it to the underlying filters. PR 55475 [Yann Ylavic] *) mod_dir: Add DirectoryCheckHandler to allow a 2.2-like behavior, skipping execution when a handler is already set. PR53929. [Eric Covener] *) mod_ssl: Do not perform SNI / Host header comparison in case of a forward proxy request. [Ruediger Pluem] *) mod_ssl: Remove the hardcoded algorithm-type dependency for the SSLCertificateFile and SSLCertificateKeyFile directives, to enable future algorithm agility, and deprecate the SSLCertificateChainFile directive (obsoleted by SSLCertificateFile). [Kaspar Brand] *) mod_rewrite: Add RewriteOptions InheritDown, InheritDownBefore, and IgnoreInherit to allow RewriteRules to be pushed from parent scopes to child scopes without explicitly configuring each child scope. PR56153. [Edward Lu ] *) prefork: Fix long delays when doing a graceful restart. PR 54852 [Jim Jagielski, Arkadiusz Miskiewicz ] *) FreeBSD: Disable IPv4-mapped listening sockets by default for versions 5+ instead of just for FreeBSD 5. PR 53824. [Jeff Trawick] *) mod_proxy_wstunnel: Avoid busy loop on client errors, drop message IDs 02445, 02446, and 02448 to TRACE1 from DEBUG. PR 56145. [Joffroy Christen , Eric Covener] *) mod_remoteip: Correct the trusted proxy match test. PR 54651. [Yoshinori Ehara , Eugene L ] *) mod_proxy_fcgi: Fix error message when an unexpected protocol version number is received from the application. PR 56110. [Jeff Trawick] *) mod_remoteip: Use the correct IP addresses to populate the proxy_ips field. PR 55972. [Mike Rumph] *) mod_lua: Update r:setcookie() to accept a table of options and add domain, path and httponly to the list of options available to set. PR 56128 [Edward Lu , Daniel Gruno] *) mod_lua: Fix r:setcookie() to add, rather than replace, the Set-Cookie header. PR56105 [Kevin J Walters , Edward Lu ] *) mod_lua: Allow for database results to be returned as a hash with row-name/value pairs instead of just row-number/value. [Daniel Gruno] *) mod_rewrite: Add %{CONN_REMOTE_ADDR} as the non-useragent counterpart to %{REMOTE_ADDR}. PR 56094. [Edward Lu ] *) WinNT MPM: If ap_run_pre_connection() fails or sets c->aborted, don't save the socket for reuse by the next worker as if it were an APR_SO_DISCONNECTED socket. Restores 2.2 behavior. [Eric Covener] *) mod_dir: Don't search for a DirectoryIndex or DirectorySlash on a URL that was just rewritten by mod_rewrite. PR53929. [Eric Covener] *) mod_session: When we have a session we were unable to decode, behave as if there was no session at all. [Thomas Eckert ] *) mod_session: Fix problems interpreting the SessionInclude and SessionExclude configuration. PR 56038. [Erik Pearson ] *) mod_authn_core: Allow 'es to be seen from auth stanzas under virtual hosts. PR 55622. [Eric Covener] *) mod_proxy_fcgi: Use apr_socket_timeout_get instead of hard-coded 30 seconds timeout. [Jan Kaluza] *) build: only search for modules (config*.m4) in known subdirectories, see build/config-stubs. [Stefan Fritsch] *) mod_cache_disk: Fix potential hangs on Windows when using mod_cache_disk. PR 55833. [Eric Covener] *) mod_ssl: Add support for OpenSSL configuration commands by introducing the SSLOpenSSLConfCmd directive. [Stephen Henson, Kaspar Brand] *) mod_proxy: Remove (never documented) syntax which is equivalent to . [Christophe Jaillet] *) mod_authz_user, mod_authz_host, mod_authz_groupfile, mod_authz_dbm, mod_authz_dbd, mod_authnz_ldap: Support the expression parser within the require directives. [Graham Leggett] *) mod_proxy_http: Core dumped under high load. PR 50335. [Jan Kaluza ] *) mod_socache_shmcb.c: Remove arbitrary restriction on shared memory size previously limited to 64MB. [Jens Låås ] *) mod_lua: Use binary copy when dealing with uploads through r:parsebody() to prevent truncating files. [Daniel Gruno] Changes with Apache 2.4.7 *) SECURITY: CVE-2013-4352 (cve.mitre.org) mod_cache: Fix a NULL pointer deference which allowed untrusted origin servers to crash mod_cache in a forward proxy configuration. [Graham Leggett] *) APR 1.5.0 or later is now required for the event MPM. *) slotmem_shm: Error detection. [Jim Jagielski] *) event: Use skiplist data structure. [Jim Jagielski] *) event: Fail at startup with message AP02405 if the APR atomic implementation is not compatible with the MPM. [Jim Jagielski] *) mpm_unix: Add ap_mpm_podx_* implementation to avoid code duplication and align w/ trunk. [Jim Jagielski] *) Fix potential rejection of valid MaxMemFree and ThreadStackSize directives. [Mike Rumph ] *) mod_proxy_fcgi: Remove 64K limit on encoded length of all envvars. An individual envvar with an encoded length of more than 16K will be omitted. [Jeff Trawick] *) mod_proxy_fcgi: Handle reading protocol data that is split between packets. [Jeff Trawick] *) mod_ssl: Improve handling of ephemeral DH and ECDH keys by allowing custom parameters to be configured via SSLCertificateFile, and by adding standardized DH parameters for 1024/2048/3072/4096 bits. Unless custom parameters are configured, the standardized parameters are applied based on the certificate's RSA/DSA key size. [Kaspar Brand] *) mod_ssl, configure: Require OpenSSL 0.9.8a or later. [Kaspar Brand] *) mod_ssl: drop support for export-grade ciphers with ephemeral RSA keys, and unconditionally disable aNULL, eNULL and EXP ciphers (not overridable via SSLCipherSuite). [Kaspar Brand] *) mod_proxy: Added support for unix domain sockets as the backend server endpoint. This also introduces an unintended incompatibility for third party modules using the mod_proxy proxy_worker_shared structure, especially for balancer lbmethod modules. [Jim Jagielski, Blaise Tarr ] *) Add experimental cmake-based build system for Windows. [Jeff Trawick, Tom Donovan] *) event MPM: Fix possible crashes (third party modules accessing c->sbh) or occasional missed mod_status updates for some keepalive requests under load. [Eric Covener] *) mod_authn_socache: Support optional initialization arguments for socache providers. [Chris Darroch] *) mod_session: Reset the max-age on session save. PR 47476. [Alexey Varlamov ] *) mod_session: After parsing the value of the header specified by the SessionHeader directive, remove the value from the response. PR 55279. [Graham Leggett] *) mod_headers: Allow for format specifiers in the substitution string when using Header edit. [Daniel Ruggeri] *) mod_dav: dav_resource->uri is treated as unencoded. This was an unnecessary ABI changed introduced in 2.4.6. PR 55397. *) mod_dav: Don't require lock tokens for COPY source. PR 55306. *) core: Don't truncate output when sending is interrupted by a signal, such as from an exiting CGI process. PR 55643. [Jeff Trawick] *) WinNT MPM: Exit the child if the parent process crashes or is terminated. [Oracle Corporation] *) Windows: Correct failure to discard stderr in some error log configurations. (Error message AH00093) [Jeff Trawick] *) mod_session_crypto: Allow using exec: calls to obtain session encryption key. [Daniel Ruggeri] *) core: Add missing Reason-Phrase in HTTP response headers. PR 54946. [Rainer Jung] *) mod_rewrite: Make rewrite websocket-aware to allow proxying. PR 55598. [Chris Harris ] *) mod_ldap: When looking up sub-groups, use an implicit objectClass=* instead of an explicit cn=* filter. [David Hawes ] *) ab: Add wait time, fix processing time, and output write errors only if they occurred. [Christophe Jaillet] *) worker MPM: Don't forcibly kill worker threads if the child process is exiting gracefully. [Oracle Corporation] *) core: apachectl -S prints wildcard name-based virtual hosts twice. PR54948 [Eric Covener] *) mod_auth_basic: Add AuthBasicUseDigestAlgorithm directive to allow migration of passwords from digest to basic authentication. [Chris Darroch] *) ab: Add a new -l parameter in order not to check the length of the responses. This can be useful with dynamic pages. PR9945, PR27888, PR42040 [] *) Suppress formatting of startup messages written to the console when ErrorLogFormat is used. [Jeff Trawick] *) mod_auth_digest: Be more specific when the realm mismatches because the realm has not been specified. [Graham Leggett] *) mod_proxy: Add a note in the balancer manager stating whether changes will or will not be persisted and whether settings are inherited. [Daniel Ruggeri, Jim Jagielski] *) core: Add util_fcgi.h and associated definitions and support routines for FastCGI, based largely on mod_proxy_fcgi. [Jeff Trawick] *) mod_headers: Add 'Header note header-name note-name' for copying a response headers value into a note. [Eric Covener] *) mod_headers: Add 'setifempty' command to Header and RequestHeader. [Eric Covener] *) mod_logio: new format-specifier %S (sum) which is the sum of received and sent byte counts. PR54015 [Christophe Jaillet] *) mod_deflate: Improve error detection when decompressing request bodies with trailing garbage: handle case where trailing bytes are in the same bucket. [Rainer Jung] *) mod_authz_groupfile, mod_authz_user: Reduce severity of AH01671 and AH01663 from ERROR to DEBUG, since these modules do not know what mod_authz_core is doing with their AUTHZ_DENIED return value. [Eric Covener] *) mod_ldap: add TRACE5 for LDAP retries. [Eric Covener] *) mod_ldap: retry on an LDAP timeout during authn. [Eric Covener] *) mod_ldap: Change "LDAPReferrals off" to actually set the underlying LDAP SDK option to OFF, and introduce "LDAPReferrals default" to take the SDK default, sans rebind authentication callback. [Jan Kaluza ] *) core: Log a message at TRACE1 when the client aborts a connection. [Eric Covener] *) WinNT MPM: Don't crash during child process initialization if the Listen protocol is unrecognized. [Jeff Trawick] *) modules: Fix some compiler warnings. [Guenter Knauf] *) Sync 2.4 and trunk - Avoid some memory allocation and work when TRACE1 is not activated - fix typo in include guard - indent - No need to lower the string before removing the path, it is just a waste of time... - Save a few cycles [Christophe Jaillet ] *) mod_filter: Add "change=no" as a proto-flag to FilterProtocol to remove a providers initial flags set at registration time. [Eric Covener] *) core, mod_ssl: Enable the ability for a module to reverse the sense of a poll event from a read to a write or vice versa. This is a step on the way to allow mod_ssl taking full advantage of the event MPM. [Graham Leggett] *) Makefile.win: Install proper pcre DLL file during debug build install. PR 55235. [Ben Reser ] *) mod_ldap: Fix a potential memory leak or corruption. PR 54936. [Zhenbo Xu ] *) ab: Fix potential buffer overflows when processing the T and X command-line options. PR 55360. [Mike Rumph ] *) fcgistarter: Specify SO_REUSEADDR to allow starting a server with old connections in TIME_WAIT. [Jeff Trawick] *) core: Add open_htaccess hook which, in conjunction with dirwalk_stat and post_perdir_config (introduced in 2.4.5), allows mpm-itk to be used without patches to httpd core. [Stefan Fritsch] *) support/htdbm: fix processing of -t command line switch. Regression introduced in 2.4.4 PR 55264 [Jo Rhett ] *) mod_lua: add websocket support via r:wsupgrade, r:wswrite, r:wsread and r:wsping. [Daniel Gruno] *) mod_lua: add support for writing/reading cookies via r:getcookie and r:setcookie. [Daniel Gruno] *) mod_lua: If the first yield() of a LuaOutputFilter returns a string, it should be prefixed to the response as documented. [Eric Covener] Note: Not present in 2.4.7 CHANGES *) mod_lua: Remove ETAG, Content-Length, and Content-MD5 when a LuaOutputFilter is configured without mod_filter. [Eric Covener] Note: Not present in 2.4.7 CHANGES *) mod_lua: Register LuaOutputFilter scripts as changing the content and content-length by default, when run my mod_filter. Previously, growing or shrinking a response that started with Content-Length set would require mod_filter and FilterProtocol change=yes. [Eric Covener] Note: Not present in 2.4.7 CHANGES *) mod_lua: Return a 500 error if a LuaHook* script doesn't return a numeric return code. [Eric Covener] Note: Not present in 2.4.7 CHANGES Changes with Apache 2.4.6 *) Revert a broken fix for PR54948 that was applied to 2.4.5 (which was not released) and found post-2.4.5 tagging. Changes with Apache 2.4.5 *) SECURITY: CVE-2013-1896 (cve.mitre.org) mod_dav: Sending a MERGE request against a URI handled by mod_dav_svn with the source href (sent as part of the request body as XML) pointing to a URI that is not configured for DAV will trigger a segfault. [Ben Reser ] *) SECURITY: CVE-2013-2249 (cve.mitre.org) mod_session_dbd: Make sure that dirty flag is respected when saving sessions, and ensure the session ID is changed each time the session changes. This changes the format of the updatesession SQL statement. Existing configurations must be changed. [Takashi Sato, Graham Leggett] *) mod_auth_basic: Add a generic mechanism to fake basic authentication using the ap_expr parser. AuthBasicFake allows the administrator to construct their own username and password for basic authentication based on their needs. [Graham Leggett] *) mpm_event: Check that AsyncRequestWorkerFactor is not negative. PR 54254. [Jackie Zhang ] *) mod_proxy: Ensure we don't attempt to amend a table we are iterating through, ensuring that all headers listed by Connection are removed. [Graham Leggett, Co-Advisor ] *) mod_proxy_http: Make the proxy-interim-response environment variable effective by formally overriding origin server behaviour. [Graham Leggett, Co-Advisor ] *) mod_proxy: Fix seg-faults when using the global pool on threaded MPMs [Thomas Eckert , Graham Leggett, Jim Jagielski] *) mod_deflate: Remove assumptions as to when an EOS bucket might arrive. Gracefully step aside if the body size is zero. [Graham Leggett] *) mod_ssl: Fix possible truncation of OCSP responses when reading from the server. [Joe Orton] *) core: Support the SINGLE_LISTEN_UNSERIALIZED_ACCEPT optimization on Linux kernel versions 3.x and above. PR 55121. [Bradley Heilbrun ] *) mod_cache_socache: Make sure the CacheSocacheMaxSize directive is merged correctly. [Jens Låås ] *) rotatelogs: add -n number-of-files option to rotate through a number of fixed-name logfiles. [Eric Covener] *) mod_proxy: Support web-socket tunnels via mod_proxy_wstunnel. [Jim Jagielski] *) mod_cache_socache: Use the name of the socache implementation when performing a lookup rather than using the raw arguments. [Martin Ksellmann ] *) core: Add dirwalk_stat hook. [Jeff Trawick] *) core: Add post_perdir_config hook. [Steinar Gunderson ] *) proxy_util: NULL terminate the right buffer in 'send_http_connect'. [Christophe Jaillet] *) mod_remoteip: close file in error path. [Christophe Jaillet] *) core: make the "default" parameter of the "ErrorDocument" option case insensitive. PR 54419 [Tianyin Xu ] *) mod_proxy_html: make the "ProxyHTMLFixups" options case insensitive. PR 54420 [Tianyin Xu ] *) mod_cache: Make option "CacheDisable" in mod_cache case insensitive. PR 54462 [Tianyin Xu ] *) mod_cache: If a 304 response indicates an entity not currently cached, then the cache MUST disregard the response and repeat the request without the conditional. [Graham Leggett, Co-Advisor ] *) mod_cache: Ensure that we don't attempt to replace a cached response with an older response as per RFC2616 13.12. [Graham Leggett, Co-Advisor ] *) core, mod_cache: Ensure RFC2616 compliance in ap_meets_conditions() with weak validation combined with If-Range and Range headers. Break out explicit conditional header checks to be useable elsewhere in the server. Ensure weak validation RFC compliance in the byteranges filter. Ensure RFC validation compliance when serving cached entities. PR 16142 [Graham Leggett, Co-Advisor ] *) core: Add the ability to do explicit matching on weak and strong ETags as per RFC2616 Section 13.3.3. [Graham Leggett, Co-Advisor ] *) mod_cache: Ensure that updated responses to HEAD requests don't get mistakenly paired with a previously cached body. Ensure that any existing body is removed when a HEAD request is cached. [Graham Leggett, Co-Advisor ] *) mod_cache: Honour Cache-Control: no-store in a request. [Graham Leggett] *) mod_cache: Make sure that contradictory entity headers present in a 304 Not Modified response are caught and cause the entity to be removed. [Graham Leggett] *) mod_cache: Make sure Vary processing handles multivalued Vary headers and multivalued headers referred to via Vary. [Graham Leggett] *) mod_cache: When serving from cache, only the last header of a multivalued header was taken into account. Fixed. Ensure that Warning headers are correctly handled as per RFC2616. [Graham Leggett] *) mod_cache: Ignore response headers specified by no-cache=header and private=header as specified by RFC2616 14.9.1 What is Cacheable. Ensure that these headers are still processed when multiple Cache-Control headers are present in the response. PR 54706 [Graham Leggett, Yann Ylavic ] *) mod_cache: Invalidate cached entities in response to RFC2616 Section 13.10 Invalidation After Updates or Deletions. PR 15868 [Graham Leggett] *) mod_dav: Improve error handling in dav_method_put(), add new dav_join_error() function. PR 54145. [Ben Reser ] *) mod_dav: Do not fail PROPPATCH when prop namespace is not known. PR 52559 [Diego Santa Cruz ] *) mod_dav: When a PROPPATCH attempts to remove a non-existent dead property on a resource for which there is no dead property in the same namespace httpd segfaults. PR 52559 [Diego Santa Cruz ] *) mod_dav: Sending an If or If-Match header with an invalid ETag doesn't result in a 412 Precondition Failed for a COPY operation. PR54610 [Timothy Wood ] *) mod_dav: Make sure that when we prepare an If URL for Etag comparison, we compare unencoded paths. PR 53910 [Timothy Wood ] *) mod_deflate: Remove assumptions as to when an EOS bucket might arrive. Gracefully step aside if the body size is zero. [Graham Leggett] *) 'AuthGroupFile' and 'AuthUserFile' do not accept anymore the optional 'standard' keyword . It was unused and not documented. PR54463 [Tianyin Xu and Christophe Jaillet] *) core: Do not over allocate memory within 'ap_rgetline_core' for the common case. [Christophe Jaillet] *) core: speed up (for common cases) and reduce memory usage of ap_escape_logitem(). This should save 70-100 bytes in the request pool for a default config. [Christophe Jaillet] *) mod_dav: Ensure URI is correctly uriencoded on return. PR 54611 [Timothy Wood ] *) mod_proxy: Reject invalid values for Max-Forwards. [Graham Leggett, Co-Advisor ] *) mod_cache: RFC2616 14.9.3 The s-maxage directive also implies the semantics of the proxy-revalidate directive. [Graham Leggett] *) mod_ssl: add support for subjectAltName-based host name checking in proxy mode (SSLProxyCheckPeerName). PR 54030. [Kaspar Brand] *) core: Use the proper macro for HTTP/1.1. [Graham Leggett] *) event MPM: Provide error handling for ThreadStackSize. PR 54311 [Tianyin Xu , Christophe Jaillet] *) mod_dav: Do not segfault on PROPFIND with a zero length DBM. PR 52559 [Diego Santa Cruz ] *) core: Improve error message where client's request-line exceeds LimitRequestLine. PR 54384 [Christophe Jaillet] *) mod_macro: New module that provides macros within configuration files. [Fabien Coelho] *) mod_cache_socache: New cache implementation backed by mod_socache that replaces mod_mem_cache known from httpd 2.2. [Graham Leggett] *) htpasswd: Add -v option to verify a password. [Stefan Fritsch] *) mod_proxy: Add BalancerInherit and ProxyPassInherit to control whether Proxy Balancers and Workers are inherited by vhosts (default is On). [Jim Jagielski] *) mod_authnz_ldap: Allow using exec: calls to obtain LDAP bind password. [Daniel Ruggeri] *) Added balancer parameter failontimeout to allow server admin to configure an IO timeout as an error in the balancer. [Daniel Ruggeri] *) mod_auth_digest: Fix crashes if shm initialization failed. [Stefan Fritsch] *) htpasswd, htdbm: Fix password generation. PR 54735. [Stefan Fritsch] *) core: Add workaround for gcc bug on sparc/64bit. PR 52900. [Stefan Fritsch] *) mod_setenvif: Fix crash in case SetEnvif and SetEnvIfExpr are used together. PR 54881. [Ruediger Pluem] *) htdigest: Fix buffer overflow when reading digest password file with very long lines. PR 54893. [Rainer Jung] *) ap_expr: Add the ability to base64 encode and base64 decode strings and to generate their SHA1 and MD5 hash. [Graham Leggett, Stefan Fritsch] *) mod_log_config: Fix crash when logging request end time for a failed request. PR 54828 [Rainer Jung] *) mod_ssl: Catch missing, mismatched or encrypted client cert/key pairs with SSLProxyMachineCertificateFile/Path directives. PR 52212, PR 54698. [Keith Burdis , Joe Orton, Kaspar Brand] *) mod_ssl: Quiet FIPS mode weak keys disabled and FIPS not selected emits in the error log to debug level. [William Rowe] *) mod_cache_disk: CacheMinFileSize and CacheMaxFileSize were always using compiled in defaults of 1000000/1 respectively. [Eric Covener] *) mod_lbmethod_heartbeat, mod_heartmonitor: Respect DefaultRuntimeDir/ DEFAULT_REL_RUNTIMEDIR for the heartbeat storage file. [Jeff Trawick] *) mod_include: Use new ap_expr for 'elif', like 'if', if legacy parser is not specified. PR 54548 [Tom Donovan] *) mod_lua: Add some new functions: r:htpassword(), r:mkdir(), r:mkrdir(), r:rmdir(), r:touch(), r:get_direntries(), r.date_parse_rfc(). [Guenter Knauf] *) mod_lua: Add multipart form data handling. [Daniel Gruno] *) mod_lua: If a LuaMapHandler doesn't return any value, log a warning and treat it as apache2.OK. [Eric Covener] *) mod_lua: Add bindings for apr_dbd/mod_dbd database access [Daniel Gruno] *) mod_lua: Add LuaInputFilter/LuaOutputFilter for creating content filters in Lua [Daniel Gruno] *) mod_lua: Allow scripts handled by the lua-script handler to return a status code to the client (such as a 302 or a 500) [Daniel Gruno] *) mod_lua: Decline handling 'lua-script' if the file doesn't exist, rather than throwing an internal server error. [Daniel Gruno] *) mod_lua: Add functions r:flush and r:sendfile as well as additional request information to the request_rec structure. [Daniel Gruno] *) mod_lua: Add a server scope for Lua states, which creates a pool of states with manageable minimum and maximum size. [Daniel Gruno] *) mod_lua: Add new directive, LuaMapHandler, for dynamically mapping URIs to Lua scripts and functions using regular expressions. [Daniel Gruno] *) mod_lua: Add new directive LuaCodeCache for controlling in-memory caching of lua scripts. [Daniel Gruno] Changes with Apache 2.4.4 *) SECURITY: CVE-2012-3499 (cve.mitre.org) Various XSS flaws due to unescaped hostnames and URIs HTML output in mod_info, mod_status, mod_imagemap, mod_ldap, and mod_proxy_ftp. [Jim Jagielski, Stefan Fritsch, Niels Heinen ] *) SECURITY: CVE-2012-4558 (cve.mitre.org) XSS in mod_proxy_balancer manager interface. [Jim Jagielski, Niels Heinen ] *) mod_dir: Add support for the value 'disabled' in FallbackResource. [Vincent Deffontaines] *) mod_proxy_connect: Don't keepalive the connection to the client if the backend closes the connection. PR 54474. [Pavel Mateja ] *) mod_lua: Add bindings for mod_dbd/apr_dbd database access. [Daniel Gruno] *) mod_proxy: Allow for persistence of local changes made via the balancer-manager between graceful/normal restarts and power cycles. [Jim Jagielski] *) mod_proxy: Fix startup crash with mis-defined balancers. PR 52402. [Jim Jagielski] *) --with-module: Fix failure to integrate them into some existing module directories. PR 40097. [Jeff Trawick] *) htcacheclean: Fix potential segfault if "-p" is omitted. [Joe Orton] *) mod_proxy_http: Honour special value 0 (unlimited) of LimitRequestBody PR 54435. [Pavel Mateja ] *) mod_proxy_ajp: Support unknown HTTP methods. PR 54416. [Rainer Jung] *) htcacheclean: Fix list options "-a" and "-A". [Rainer Jung] *) mod_slotmem_shm: Fix mistaken reset of num_free for restored shm. [Jim Jagielski] *) mod_proxy: non-existence of byrequests is not an immediate error. [Jim Jagielski] *) mod_proxy_balancer: Improve output of balancer-manager (re: Drn, Dis, Ign, Stby). PR 52478 [Danijel ] *) configure: Fix processing of --disable-FEATURE for various features. [Jeff Trawick] *) mod_dialup/mod_http: Prevent a crash in mod_dialup in case of internal redirect. PR 52230. *) various modules, rotatelogs: Replace use of apr_file_write() with apr_file_write_full() to prevent incomplete writes. PR 53131. [Nicolas Viennot , Stefan Fritsch] *) ab: Support socket timeout (-s timeout). [Guido Serra ] *) httxt2dbm: Correct length computation for the 'value' stored in the DBM file. PR 47650 [jon buckybox com] *) core: Be more correct about rejecting directives that cannot work in sections. [Stefan Fritsch] *) core: Fix directives like LogLevel that need to know if they are invoked at virtual host context or in Directory/Files/Location/If sections to work properly in If sections that are not in a Directory/Files/Location. [Stefan Fritsch] *) mod_xml2enc: Fix problems with charset conversion altering the Content-Length. [Micha Lenk ] *) ap_expr: Add req_novary function that allows HTTP header lookups without adding the name to the Vary header. [Stefan Fritsch] *) mod_slotmem_*: Add in new fgrab() function which forces a grab and slot allocation on a specified slot. Allow for clearing of inuse array. [Jim Jagielski] *) mod_proxy_ftp: Fix segfaults on IPv4 requests to hosts with DNS AAAA records. PR 40841. [Andrew Rucker Jones , , Jim Jagielski] *) mod_auth_form: Make sure that get_notes_auth() sets the user as does get_form_auth() and get_session_auth(). Makes sure that REMOTE_USER does not vanish during mod_include driven subrequests. [Graham Leggett] *) mod_cache_disk: Resolve errors while revalidating disk-cached files on Windows ("...rename tempfile to datafile failed..."). PR 38827 [Eric Covener] *) mod_proxy_balancer: Bring XML output up to date. [Jim Jagielski] *) htpasswd, htdbm: Optionally read passwords from stdin, as more secure alternative to -b. PR 40243. [Adomas Paltanavicius , Stefan Fritsch] *) htpasswd, htdbm: Add support for bcrypt algorithm (requires apr-util 1.5 or higher). PR 49288. [Stefan Fritsch] *) htpasswd, htdbm: Put full 48bit of entropy into salt, improve error handling. Add some of htpasswd's improvements to htdbm, e.g. warn if password is truncated by crypt(). [Stefan Fritsch] *) mod_auth_form: Support the expr parser in the AuthFormLoginRequiredLocation, AuthFormLoginSuccessLocation and AuthFormLogoutLocation directives. [Graham Leggett] *) mod_ssl: Add support for TLS-SRP (Secure Remote Password key exchange for TLS, RFC 5054). PR 51075. [Quinn Slack , Christophe Renou, Peter Sylvester] *) mod_rewrite: Stop mergeing RewriteBase down to subdirectories unless new option 'RewriteOptions MergeBase' is configured. PR 53963. [Eric Covener] *) mod_header: Allow for exposure of loadavg and server load using new format specifiers %l, %i, %b [Jim Jagielski] *) core: Make ap_regcomp() return AP_REG_ESPACE if out of memory. Make ap_pregcomp() abort if out of memory. This raises the minimum PCRE requirement to version 6.0. [Stefan Fritsch] *) mod_proxy: Add ability to configure the sticky session separator. PR 53893. [, Jim Jagielski] *) mod_dumpio: Correctly log large messages PR 54179 [Marek Wianecki ] *) core: Don't fail at startup with AH00554 when Include points to a directory without any wildcard character. [Eric Covener] *) core: Fail startup if the argument to ServerTokens is unrecognized. [Jackie Zhang ] *) mod_log_forensic: Don't log a spurious "-" if a request has been rejected before mod_log_forensic could attach its id to it. [Stefan Fritsch] *) rotatelogs: Omit the second argument for the first invocation of a post-rotate program when -p is used, per the documentation. [Joe Orton] *) mod_session_dbd: fix a segmentation fault in the function dbd_remove. PR 53452. [, Reimo Rebane] *) core: Functions to provide server load values: ap_get_sload() and ap_get_loadavg(). [Jim Jagielski, Jan Kaluza , Jeff Trawick] *) mod_ldap: Fix regression in handling "server unavailable" errors on Windows. PR 54140. [Eric Covener] *) syslog logging: Remove stray ", referer" at the end of some messages. [Jeff Trawick] *) "Iterate" directives: Report an error if no arguments are provided. [Jeff Trawick] *) mod_ssl: Change default for SSLCompression to off, as compression causes security issues in most setups. (The so called "CRIME" attack). [Stefan Fritsch] *) ab: add TLS1.1/TLS1.2 options to -f switch, and adapt output to more accurately report the negotiated protocol. PR 53916. [Nicolás Pernas Maradei , Kaspar Brand] *) core: ErrorDocument now works for requests without a Host header. PR 48357. [Jeff Trawick] *) prefork: Avoid logging harmless errors during graceful stop. [Joe Orton, Jeff Trawick] *) mod_proxy: When concatting for PPR, avoid cases where we concat ".../" and "/..." to create "...//..." [Jim Jagielski] *) mod_cache: Wrong content type and character set when mod_cache serves stale content because of a proxy error. PR 53539. [Rainer Jung, Ruediger Pluem] *) mod_proxy_ajp: Fix crash in packet dump code when logging with LogLevel trace7 or trace8. PR 53730. [Rainer Jung] *) httpd.conf: Removed the configuration directives setting a bad_DNT environment introduced in 2.4.3. The actual directives are commented out in the default conf file. *) core: Apply length limit when logging Status header values. [Jeff Trawick, Chris Darroch] *) mod_proxy_balancer: The nonce is only derived from the UUID iff not set via the 'nonce' balancer param. [Jim Jagielski] *) mod_ssl: Match wildcard SSL certificate names in proxy mode. PR 53006. [Joe Orton] *) Windows: Fix output of -M, -L, and similar command-line options which display information about the server configuration. [Jeff Trawick] Changes with Apache 2.4.3 *) SECURITY: CVE-2012-3502 (cve.mitre.org) mod_proxy_ajp, mod_proxy_http: Fix an issue in back end connection closing which could lead to privacy issues due to a response mixup. PR 53727. [Rainer Jung] *) SECURITY: CVE-2012-2687 (cve.mitre.org) mod_negotiation: Escape filenames in variant list to prevent a possible XSS for a site where untrusted users can upload files to a location with MultiViews enabled. [Niels Heinen ] *) mod_authnz_ldap: Don't try a potentially expensive nested groups search before exhausting all AuthLDAPGroupAttribute checks on the current group. PR 52464 [Eric Covener] *) mod_lua: Add new directive LuaAuthzProvider to allow implementing an authorization provider in lua. [Stefan Fritsch] *) core: Be less strict when checking whether Content-Type is set to "application/x-www-form-urlencoded" when parsing POST data, or we risk losing data with an appended charset. PR 53698 [Petter Berntsen ] *) httpd.conf: Added configuration directives to set a bad_DNT environment variable based on User-Agent and to remove the DNT header field from incoming requests when a match occurs. This currently has the effect of removing DNT from requests by MSIE 10.0 because it deliberately violates the current specification of DNT semantics for HTTP. [Roy T. Fielding] *) mod_socache_shmcb: Fix bus error due to a misalignment in some 32 bit builds, especially on Solaris Sparc. PR 53040. [Rainer Jung] *) mod_cache: Set content type in case we return stale content. [Ruediger Pluem] *) Windows: Fix SSL failures on windows with AcceptFilter https none. PR 52476. [Jeff Trawick] *) ab: Fix read failure when targeting SSL server. [Jeff Trawick] *) The following now respect DefaultRuntimeDir/DEFAULT_REL_RUNTIMEDIR: - mod_auth_digest: shared memory file [Jeff Trawick] *) htpasswd: Use correct file mode for checking if file is writable. PR 45923. [Stefan Fritsch] *) mod_rewrite: Fix crash with dbd RewriteMaps. PR 53663. [Mikhail T. ] *) mod_ssl: Add new directive SSLCompression to disable TLS-level compression. PR 53219. [Björn Jacke , Stefan Fritsch] *) mod_lua: Add a few missing request_rec fields. Rename remote_ip to client_ip to match conn_rec. [Stefan Fritsch] *) mod_lua: Change prototype of vm_construct, to work around gcc bug which causes a segfault. PR 52779. [Dick Snippe ] *) mpm_event: Don't count connections in lingering close state when calculating how many additional connections may be accepted. [Stefan Fritsch] *) mod_ssl: If exiting during initialization because of a fatal error, log a message to the main error log pointing to the appropriate virtual host error log. [Stefan Fritsch] *) mod_proxy_ajp: Reduce memory usage in case of many keep-alive requests on one connection. PR 52275. [Naohiro Ooiwa ] *) mod_proxy_balancer: Restore balancing after a failed worker has recovered when using lbmethod_bybusyness. PR 48735. [Jeff Trawick] *) mod_setenvif: Compile some global regex only once during startup. This should save some memory, especially with .htaccess. [Stefan Fritsch] *) core: Add the port number to the vhost's name in the scoreboard. [Stefan Fritsch] *) mod_proxy: Fix ProxyPassReverse for balancer configurations. PR 45434. [Joe Orton] *) mod_lua: Add the parsebody function for parsing POST data. PR 53064. [Daniel Gruno] *) apxs: Use LDFLAGS from config_vars.mk in addition to CFLAGS and CPPFLAGS. [Stefan Fritsch] *) mod_proxy: Fix memory leak or possible corruption in ProxyBlock implementation. [Ruediger Pluem, Joe Orton] *) mod_proxy: Check hostname from request URI against ProxyBlock list, not forward proxy, if ProxyRemote* is configured. [Joe Orton] *) mod_proxy_connect: Avoid DNS lookup on hostname from request URI if ProxyRemote* is configured. PR 43697. [Joe Orton] *) mpm_event, mpm_worker: Remain active amidst prevalent child process resource shortages. [Jeff Trawick] *) Add "strict" and "warnings" pragmas to Perl scripts. [Rich Bowen] *) The following now respect DefaultRuntimeDir/DEFAULT_REL_RUNTIMEDIR: - core: the scoreboard (ScoreBoardFile), pid file (PidFile), and mutexes (Mutex) [Jim Jagielski] *) ab: Fix bind() errors. [Joe Orton] *) mpm_event: Don't do a blocking write when starting a lingering close from the listener thread. PR 52229. [Stefan Fritsch] *) mod_so: If a filename without slashes is specified for LoadFile or LoadModule and the file cannot be found in the server root directory, try to use the standard dlopen() search path. [Stefan Fritsch] *) mpm_event, mpm_worker: Fix cases where the spawn rate wasn't reduced after child process resource shortages. [Jeff Trawick] *) mpm_prefork: Reduce spawn rate after a child process exits due to unexpected poll or accept failure. [Jeff Trawick] *) core: Log value of Status header line in script responses rather than the fixed header name. [Chris Darroch] *) mod_ssl: Fix handling of empty response from OCSP server. [Jim Meyering , Joe Orton] *) mpm_event: Fix handling of MaxConnectionsPerChild. [Stefan Fritsch] *) mod_authz_core: If an expression in "Require expr" returns denied and references %{REMOTE_USER}, trigger authentication and retry. PR 52892. [Stefan Fritsch] *) core: Always log if LimitRequestFieldSize triggers. [Stefan Fritsch] *) mod_deflate: Skip compression if compression is enabled at SSL level. [Stefan Fritsch] *) core: Add missing HTTP status codes registered with IANA. [Julian Reschke , Rainer Jung] *) mod_ldap: Treat the "server unavailable" condition as a transient error with all LDAP SDKs. [Filip Valder ] *) core: Fix spurious "not allowed here" error returned when the Options directive is used in .htaccess and "AllowOverride Options" (with no specific options restricted) is configured. PR 53444. [Eric Covener] *) mod_authz_core: Fix parsing of Require arguments in . PR 53048. [Stefan Fritsch] *) mod_log_config: Fix %{abc}C truncating cookie values at first "=". PR 53104. [Greg Ames] *) mod_ext_filter: Fix error_log spam when input filters are configured. [Joe Orton] *) mod_rewrite: Add "AllowAnyURI" option. PR 52774. [Joe Orton] *) htdbm, htpasswd: Don't crash if crypt() fails (e.g. with FIPS enabled). [Paul Wouters , Joe Orton] *) core: Use a TLS 1.0 close_notify alert for internal dummy connection if the chosen listener is configured for https. [Joe Orton] *) mod_proxy: Use the the same hostname for SNI as for the HTTP request when forwarding to SSL backends. PR 53134. [Michael Weiser , Ruediger Pluem] *) mod_info: Display all registered providers. [Stefan Fritsch] *) mod_ssl: Send the error message for speaking http to an https port using HTTP/1.0 instead of HTTP/0.9, and omit the link that may be wrong when using SNI. PR 50823. [Stefan Fritsch] *) core: Fix segfault in logging if r->useragent_addr or c->client_addr is unset. PR 53265. [Stefan Fritsch] *) log_server_status: Bring Perl style forward to the present, use standard modules, update for new format of server-status output. PR 45424. [Richard Bowen, Dave Brondsema, and others] *) mod_sed, mod_log_debug, mod_rewrite: Symbol namespace cleanups. [Joe Orton, André Malo] *) core: Prevent "httpd -k restart" from killing server in presence of config error. [Joe Orton] *) mod_proxy_fcgi: If there is an error reading the headers from the backend, send an error to the client. PR 52879. [Stefan Fritsch] Changes with Apache 2.4.2 *) SECURITY: CVE-2012-0883 (cve.mitre.org) envvars: Fix insecure handling of LD_LIBRARY_PATH that could lead to the current working directory to be searched for DSOs. [Stefan Fritsch] *) mod_slotmem_shm: Honor DefaultRuntimeDir [Jim Jagielski] *) mod_ssl: Fix crash with threaded MPMs due to race condition when initializing EC temporary keys. [Stefan Fritsch] *) mod_rewrite: Fix RewriteCond integer checks to be parsed correctly. PR 53023. [Axel Reinhold , André Malo] *) mod_proxy: Add the forcerecovery balancer parameter that determines if recovery for balancer workers is enforced. [Ruediger Pluem] *) Fix MPM DSO load failure on AIX. [Jeff Trawick] *) mod_proxy: Correctly set up reverse proxy worker. PR 52935. [Petter Berntsen ] *) mod_sed: Don't define PATH_MAX to a potentially undefined value, causing compile problems on GNU hurd. [Stefan Fritsch] *) core: Add ap_runtime_dir_relative() and DefaultRuntimeDir. [Jeff Trawick] *) core: Fix breakage of Listen directives with MPMs that use a per-directory config. PR 52904. [Stefan Fritsch] *) core: Disallow directives in AllowOverrideList which are only allowed in VirtualHost or server context. These are usually not prepared to be called in .htaccess files. [Stefan Fritsch] *) core: In AllowOverrideList, do not allow 'None' together with other directives. PR 52823. [Stefan Fritsch] *) mod_slotmem_shm: Support DEFAULT_REL_RUNTIMEDIR for file-based shm. [Jim Jagielski] *) core: Fix merging of AllowOverrideList and ContentDigest. [Stefan Fritsch] *) mod_request: Fix validation of the KeptBodySize argument so it doesn't always throw a configuration error. PR 52981 [Eric Covener] *) core: Add filesystem paths to access denied / access failed messages AH00035 and AH00036. [Eric Covener] *) mod_dumpio: Properly handle errors from subsequent input filters. PR 52914. [Stefan Fritsch] *) Unix MPMs: Fix small memory leak in parent process if connect() failed when waking up children. [Joe Orton] *) "DirectoryIndex disabled" now undoes DirectoryIndex settings in the current configuration section, not just previous config sections. PR 52845. [Eric Covener] *) mod_xml2enc: Fix broken handling of EOS buckets which could lead to response headers not being sent. PR 52766. [Stefan Fritsch] *) mod_ssl: Properly free the GENERAL_NAMEs. PR 32652. [Kaspar Brand] *) core: Check during config test that directories for the access logs actually exist. PR 29941. [Stefan Fritsch] *) mod_xml2enc, mod_proxy_html: Enable per-module loglevels. [Stefan Fritsch] *) mod_filter: Fix segfault with AddOutputFilterByType. PR 52755. [Stefan Fritsch] *) mod_session: Sessions are encoded as application/x-www-form-urlencoded strings, however we do not handle the encoding of spaces properly. Fixed. [Graham Leggett] *) Configuration: Example in comment should use a path consistent with the default configuration. PR 52715. [Rich Bowen, Jens Schleusener, Rainer Jung] *) Configuration: Switch documentation links from trunk to 2.4. [Rainer Jung] *) configure: Fix out of tree build using apr and apr-util in srclib. [Rainer Jung] Changes with Apache 2.4.1 *) SECURITY: CVE-2012-0053 (cve.mitre.org) Fix an issue in error responses that could expose "httpOnly" cookies when no custom ErrorDocument is specified for status code 400. [Eric Covener] *) mod_proxy_balancer: Fix crash on Windows. PR 52402 [Mladen Turk] *) core: Check during configtest that the directories for error logs exist. PR 29941 [Stefan Fritsch] *) Core configuration: add AllowOverride option to treat syntax errors in .htaccess as non-fatal. PR 52439 [Nick Kew, Jim Jagielski] *) core: Fix memory consumption in core output filter with streaming bucket types like CGI or PIPE. [Joe Orton, Stefan Fritsch] *) configure: Disable modules at configure time if a prerequisite module is not enabled. PR 52487. [Stefan Fritsch] *) Rewrite and proxy now decline what they don't support rather than fail the request. [Joe Orton] *) Fix building against external apr plus apr-util if apr is not installed in a system default path. [Rainer Jung] *) Doxygen fixes and improvements. [Joe Orton, Igor Galić] *) core: Fix building against PCRE 8.30 by switching from the obsolete pcre_info() to pcre_fullinfo(). PR 52623 [Ruediger Pluem, Rainer Jung] Changes with Apache 2.4.0 *) SECURITY: CVE-2012-0031 (cve.mitre.org) Fix scoreboard issue which could allow an unprivileged child process to cause the parent to crash at shutdown rather than terminate cleanly. [Joe Orton] *) mod_ssl: Fix compilation with xlc on AIX. PR 52394. [Stefan Fritsch] *) SECURITY: CVE-2012-0021 (cve.mitre.org) mod_log_config: Fix segfault (crash) when the '%{cookiename}C' log format string is in use and a client sends a nameless, valueless cookie, causing a denial of service. The issue existed since version 2.2.17 and 2.3.3. PR 52256. [Rainer Canavan ] *) mod_ssl: when compiled against OpenSSL 1.0.1 or later, allow explicit control of TLSv1.1 and TLSv1.2 through the SSLProtocol directive. [Kaspar Brand] *) mod_ssl: set OPENSSL_NO_SSL_INTERN when compiling against OpenSSL 1.0.1 or later, to improve binary compatibility with future OpenSSL releases. [Kaspar Brand] *) mod_mime: Don't arbitrarily bypass AddOutputFilter during a ProxyPass, but then allow AddOutputFilter during a RewriteRule [P]. Make mod_mime behave identically in both cases. PR52342. [Graham Leggett] *) Move ab, logresolve, httxt2dbm and apxs to bin from sbin, along with corresponding man pages. [Graham Leggett] *) Distinguish properly between the bindir and sbindir directories when installing binaries. Previously all binaries were silently installed to sbindir, whether they were system administration commands or not. [Graham Leggett] Changes with Apache 2.3.16 *) SECURITY: CVE-2011-4317 (cve.mitre.org) Resolve additional cases of URL rewriting with ProxyPassMatch or RewriteRule, where particular request-URIs could result in undesired backend network exposure in some configurations. [Joe Orton] *) core: Limit line length in .htaccess to 8K like in 2.2.x, to avoid additional DoS potential. [Stefan Fritsch] *) core, all modules: Add unique tag to most error log messages. [Stefan Fritsch] *) mod_socache_memcache: Change provider name from "mc" to "memcache" to match module name. [Stefan Fritsch] *) mod_slotmem_shm: Change provider name from "shared" to "shm" to match module name. [Stefan Fritsch] *) mod_ldap: Fix segfault with Solaris LDAP when enabling ldaps. This requires an apr-util fix in which is available in apr-util >= 1.4.0. PR 42682. [Stefan Fritsch] *) mod_rewrite: Add the AllowNoSlash RewriteOption, which makes it possible for RewriteRules to be placed in .htaccess files that match the directory with no trailing slash. PR 48304. [Matthew Byng-Maddick ] *) mod_session_crypto: Add a SessionCryptoPassphraseFile directive so that the administrator can hide the keys from the configuration. [Graham Leggett] *) Introduce a per request version of the remote IP address, which can be optionally modified by a module when the effective IP of the client is not the same as the real IP of the client (such as a load balancer). Introduce a per connection "peer_ip" and a per request "client_ip" to distinguish between the raw IP address of the connection and the effective IP address of the request. [Graham Leggett] *) ap_pass_brigade_fchk() function added. [Jim Jagielski] *) core: Pass ap_errorlog_info struct to error log hook. [Stefan Fritsch] *) mod_cache_disk: Make sure we check return codes on all writes and attempts to close, and clean up after ourselves in these cases. PR43589. [Graham Leggett] *) mod_cache_disk: Remove the unnecessary intermediate brigade while writing to disk. Fixes a problem where mod_disk_cache was leaving buckets in the intermediate brigade and not passing them to out on exit. [Florian S. , Graham Leggett] *) mod_ssl: use a shorter setting for SSLCipherSuite in the default default configuration file, and add some more information about configuring a speed-optimized alternative. [Kaspar Brand] *) mod_ssl: drop support for the SSLv2 protocol. [Kaspar Brand] *) mod_lua: Stop losing track of all but the most specific LuaHook* directives when multiple per-directory config sections are used. Adds LuaInherit directive to control how parent sections are merged. [Eric Covener] *) Server directive display (-L): Include directives of DSOs. [Jeff Trawick] *) mod_cache: Make sure we merge headers correctly when we handle a non cacheable conditional response. PR52120. [Graham Leggett] *) Pre GA removal of components that will not be included: - mod_noloris was superseded by mod_reqtimeout - mod_serf - mpm_simple [Rainer Jung] *) core: Set MaxMemFree 2048 by default. [Stefan Fritsch] *) mpm_event: Fix assertion failure during very high load. [Stefan Fritsch] *) configure: Additional modules loaded by default: mod_headers. Modules moved from module set "few" to "most" and no longer loaded by default: mod_actions, mod_allowmethods, mod_auth_form, mod_buffer, mod_cgi(d), mod_include, mod_negotiation, mod_ratelimit, mod_request, mod_userdir. [Rainer Jung] *) mod_lua: Use the right lua scope when used as a hook. [Rainer Jung] *) configure: Only load the really imporant modules (i.e. those enabled by the 'few' selection) by default. Don't handle modules enabled with --enable-foo specially. [Stefan Fritsch] *) end-generation hook: Fix false notification of end-of-generation for temporary intervals with no active MPM children. [Jeff Trawick] *) mod_ssl: Add support for configuring persistent TLS session ticket encryption/decryption keys (useful for clustered environments). [Paul Querna, Kaspar Brand] *) mod_usertrack: Use random value instead of remote IP address. [Stefan Fritsch] Changes with Apache 2.3.15 *) SECURITY: CVE-2011-3348 (cve.mitre.org) mod_proxy_ajp: Respond with HTTP_NOT_IMPLEMENTED when the method is not recognized. [Jean-Frederic Clere] *) SECURITY: CVE-2011-3192 (cve.mitre.org) core: Fix handling of byte-range requests to use less memory, to avoid denial of service. If the sum of all ranges in a request is larger than the original file, ignore the ranges and send the complete file. PR 51714. [Stefan Fritsch, Jim Jagielski, Ruediger Pluem, Eric Covener, ] *) SECURITY: CVE-2011-3607 (cve.mitre.org) core: Fix integer overflow in ap_pregsub. This can be triggered e.g. with mod_setenvif via a malicious .htaccess. [Stefan Fritsch] *) SECURITY: CVE-2011-3368 (cve.mitre.org) Reject requests where the request-URI does not match the HTTP specification, preventing unexpected expansion of target URLs in some reverse proxy configurations. [Joe Orton] *) configure: Load all modules in the generated default configuration when using --enable-load-all-modules. [Rainer Jung] *) mod_reqtimeout: Change the default to set some reasonable timeout values. [Stefan Fritsch] *) core, mod_dav_fs: Change default ETag to be "size mtime", i.e. remove the inode. PR 49623. [Stefan Fritsch] *) mod_lua: Expose SSL variables via r:ssl_var_lookup(). [Eric Covener] *) mod_lua: LuaHook{AccessChecker,AuthChecker,CheckUserID,TranslateName} can now additionally be run as "early" or "late" relative to other modules. [Eric Covener] *) configure: By default, only load those modules that are either required or explicitly selected by a configure --enable-foo argument. The LoadModule statements for modules enabled by --enable-mods-shared=most and friends will be commented out. [Stefan Fritsch] *) mod_lua: Prevent early Lua hooks (LuaHookTranslateName and LuaHookQuickHandler) from being configured in , , and htaccess where the configuration would have been ignored. [Eric Covener] *) mod_lua: Resolve "attempt to index local 'r' (a userdata value)" errors in LuaMapHandler scripts [Eric Covener] *) mod_log_debug: Rename optional argument from if= to expr=, to be more in line with other config directives. [Stefan Fritsch] *) mod_headers: Require an expression to be specified with expr=, to be more in line with other config directives. [Stefan Fritsch] *) mod_substitute: To prevent overboarding memory usage, limit line length to 1MB. [Stefan Fritsch] *) mod_lua: Make the query string (r.args) writable. [Eric Covener] *) mod_include: Add support for application/x-www-form-urlencoded encoding and decoding. [Graham Leggett] *) rotatelogs: Add -c option to force logfile creation in every rotation interval, even if empty. [Jan Kaluža ] *) core: Limit ap_pregsub() to 64K, add ap_pregsub_ex() for longer strings. [Stefan Fritsch] *) mod_session_crypto: Refactor to support the new apr_crypto API. [Graham Leggett] *) http: Add missing Location header if local URL-path is used as ErrorDocument for 30x. [Stefan Fritsch] *) mod_buffer: Make sure we step down for subrequests, but not for internal redirects triggered by mod_rewrite. [Graham Leggett] *) mod_lua: add r:construct_url as a wrapper for ap_construct_url. [Eric Covener] *) mod_remote_ip: Fix configuration of internal proxies. PR 49272. [Jim Riggs ] *) mpm_winnt: Handle AcceptFilter 'none' mode correctly; resolve specific server IP endpoint and remote client IP upon connection. [William Rowe] *) mod_setenvif: Remove OID match which is obsoleted by SetEnvIfExpr with PeerExtList(). [Stefan Fritsch] *) mpm_prefork, mpm_worker, mpm_event: If a child is created just before graceful restart and then exits because of a missing lock file, don't shutdown the whole server. PR 39311. [Shawn Michael ] *) mpm_event: Check the return value from ap_run_create_connection. PR 41194. [Davi Arnaut] *) mod_mime_magic: Add signatures for PNG and SWF to the example config. PR 48352. [Jeremy Wagner-Kaiser ] *) core, unixd: Add -D DUMP_RUN_CFG option to dump some configuration items from the parsed (or default) config. This is useful for init scripts that need to setup temporary directories and permissions. [Stefan Fritsch] *) core, mod_actions, mod_asis: Downgrade error log messages which accompany a 404 request status from loglevel error to info. PR 35768. [Stefan Fritsch] *) core: Fix hook sorting with Perl modules. PR 45076. [Torsten Foertsch ] *) core: Enforce LimitRequestFieldSize after multiple headers with the same name have been merged. [Stefan Fritsch] *) mod_ssl: If MaxMemFree is set, ask OpenSSL >= 1.0.0 to reduce memory usage. PR 51618. [Cristian Rodríguez , Stefan Fritsch] *) mod_ssl: At startup, when checking a server certificate whether it matches the configured ServerName, also take dNSName entries in the subjectAltName extension into account. PR 32652, PR 47051. [Kaspar Brand] *) mod_substitute: Reduce memory usage and copying of data. PR 50559. [Stefan Fritsch] *) mod_ssl/proxy: enable the SNI extension for backend TLS connections [Kaspar Brand] *) Add wrappers for malloc, calloc, realloc that check for out of memory situations and use them in many places. PR 51568, PR 51569, PR 51571. [Stefan Fritsch] *) Fix cross-compilation of mod_cgi/mod_cgid when APR_HAVE_STRUCT_RLIMIT is false but RLIMIT_* are defined. PR51371. [Eric Covener] *) core: Correctly obey ServerName / ServerAlias if the Host header from the request matches the VirtualHost address. PR 51709. [Micha Lenk ] *) mod_unique_id: Use random number generator to initialize counter. PR 45110. [Stefan Fritsch] *) core: Add convenience API for apr_random. [Stefan Fritsch] *) core: Add MaxRangeOverlaps and MaxRangeReversals directives to control the number of overlapping and reversing ranges (respectively) permitted before returning the entire resource, with a default limit of 20. [Jim Jagielski] *) mod_ldap: Optional function uldap_ssl_supported(r) always returned false if called from a virtual host with mod_ldap directives in it. Did not affect mod_authnz_ldap's usage of mod_ldap. [Eric Covener] *) mod_filter: Instead of dropping the Accept-Ranges header when a filter registered with AP_FILTER_PROTO_NO_BYTERANGE is present, set the header value to "none". [Eric Covener, Ruediger Pluem] *) core: Allow MaxRanges none|unlimited|default and set 'Accept-Ranges: none' in the case Ranges are being ignored with MaxRanges none. [Eric Covener] *) mod_ssl: revamp CRL-based revocation checking when validating certificates of clients or proxied servers. Completely delegate CRL processing to OpenSSL, and add a new [Proxy]CARevocationCheck directive for controlling the revocation checking mode. [Kaspar Brand] *) core: Add MaxRanges directive to control the number of ranges permitted before returning the entire resource, with a default limit of 200. [Eric Covener] *) mod_cache: Ensure that CacheDisable can correctly appear within a LocationMatch. [Graham Leggett] *) mod_cache: Fix the moving of the CACHE filter, which erroneously stood down if the original filter was not added by configuration. [Graham Leggett] *) mod_ssl: improve certificate error logging. PR 47408. [Kaspar Brand] *) mod_authz_groupfile: Increase length limit of lines in the group file to 16MB. PR 43084. [Stefan Fritsch] *) core: Increase length limit of lines in the configuration file to 16MB. PR 45888. PR 50824. [Stefan Fritsch] *) core: Add API for resizable buffers. [Stefan Fritsch] *) mod_ldap: Enable LDAPConnectionTimeout for LDAP toolkits that have LDAP_OPT_CONNECT_TIMEOUT instead of LDAP_OPT_NETWORK_TIMEOUT, such as Tivoli Directory Server 6.3 and later. [Eric Covener] *) mod_ldap: Change default number of retries from 10 to 3, and add an LDAPRetries and LDAPRetryDelay directives. [Eric Covener] *) mod_authnz_ldap: Don't retry during authentication, because this just multiplies the ample retries already being done by mod_ldap. [Eric Covener] *) configure: Allow to explicitly disable modules even with module selection 'reallyall'. [Stefan Fritsch] *) mod_rewrite: Check validity of each internal (int:) RewriteMap even if the RewriteEngine is disabled in server context, avoiding a crash while referencing the invalid int: map at runtime. PR 50994. [Ben Noordhuis ] *) mod_ssl, configure: require OpenSSL 0.9.7 or later. [Kaspar Brand] *) mod_ssl: remove ssl_toolkit_compat layer. [Kaspar Brand] *) mod_ssl, configure, ab: drop support for RSA BSAFE SSL-C toolkit. [Kaspar Brand] *) mod_usertrack: Run mod_usertrack earlier in the fixups hook to ensure the cookie is set when modules such as mod_rewrite trigger a redirect. Also use r->err_headers_out for the cookie, for the same reason. PR29755. [Sami J. Mäkinen , Eric Covener] *) mod_proxy_http, mod_proxy_connect: Add 'proxy-status' and 'proxy-source-port' request notes for logging. PR 30195. [Stefan Fritsch] *) configure: Enable ldap modules in 'all' and 'most' selections if ldap is compiled into apr-util. [Stefan Fritsch] *) core: Add ap_check_cmd_context()-check if a command is executed in .htaccess file. [Stefan Fritsch] *) mod_deflate: Fix endless loop if first bucket is metadata. PR 51590. [Torsten Foertsch ] *) mod_authn_socache: Fix to work in .htaccess if not configured anywhere in httpd.conf, and introduce an AuthnCacheEnable directive. PR 51991 [Nick Kew] *) mod_xml2enc: new (formerly third-party) module supporting internationalisation for filters via smart charset sniffing and conversion. [Nick Kew] *) mod_proxy_html: new (formerly third-party) module to fix up HTML links in a reverse proxy situation, where a backend generates URLs that are not resolvable by Clients. [Nick Kew] Changes with Apache 2.3.14 *) mod_proxy_ajp: Improve trace logging. [Rainer Jung] *) mod_proxy_ajp: Respect "reuse" flag in END_REPONSE packets. [Rainer Jung] *) mod_proxy: enable absolute URLs to be rewritten with ProxyPassReverse, e.g. to reverse proxy "Location: https://other-internal-server/login" [Nick Kew] *) prefork, worker, event: Make sure crashes are logged to the error log if httpd has already detached from the console. [Stefan Fritsch] *) prefork, worker, event: Reduce period during startup/restart where a successive signal may be lost. PR 43696. [Arun Bhalla ] *) mod_allowmethods: Correct Merging of "reset" and do not allow an empty parameter list for the AllowMethods directive. [Rainer Jung] *) configure: Update selection of modules for 'all' and 'most'. 'all' will now enable all modules except for example and test modules. Make the selection for 'most' more useful (including ssl and proxy). Both 'all' and 'most' will now disable modules if dependencies are missing instead of aborting. If a specific module is requested with --enable-XXX=yes, missing dependencies will still cause configure to exit with an error. [Stefan Fritsch] *) mod_ldap: Revert the integration of apr-ldap as ap_ldap which was done in 2.3.13. [Stefan Fritsch] *) core: For '*' or '_default_' vhosts, use a wildcard address of any address family, rather than IPv4 only. [Joe Orton] *) core, mod_rewrite, mod_ssl, mod_nw_ssl: Make the SERVER_NAME variable include [ ] for literal IPv6 addresses, as mandated by RFC 3875. PR 26005. [Stefan Fritsch] *) mod_negotiation: Fix parsing of Content-Length in type maps. PR 42203. [Nagae Hidetake ] *) core: Add more logging to ap_scan_script_header_err* functions. Add ap_scan_script_header_err*_ex functions that take a module index for logging. mod_cgi, mod_cgid, mod_proxy_fcgi, mod_proxy_scgi, mod_isapi: Use the new functions in order to make logging configurable per-module. [Stefan Fritsch] *) mod_dir: Add DirectoryIndexRedirect to send an external redirect to the proper index. [Eric Covener] *) mod_deflate: Don't try to compress requests with a zero sized body. PR 51350. [Stefan Fritsch] *) core: Fix startup on IPv6-only systems. PR 50592. [Joe Orton, ] *) suexec: Add environment variables CONTEXT_DOCUMENT_ROOT, CONTEXT_PREFIX, REDIRECT_ERROR_NOTES, REDIRECT_SCRIPT_FILENAME, REQUEST_SCHEME to the whitelist in suexec. PR 51499. [Graham Laverty , Stefan Fritsch] *) mod_rewrite: Fix regexp RewriteCond with NoCase. [Stefan Fritsch] *) mod_log_debug: New module that allows to log custom messages at various phases in the request processing. [Stefan Fritsch] *) mod_ssl: Add some debug logging when loading server certificates. PR 37912. [Nick Burch ] *) configure: Support reallyall option also for --enable-mods-static. [Rainer Jung] *) mod_socache_dc: add --with-distcache to configure for choosing the distcache installation directory. [Rainer Jung] *) mod_socache_dc: use correct build variable MOD_SOCACHE_DC_LDADD instead of MOD_SOCACHE_LDADD in build macro. [Rainer Jung] *) mod_lua, mod_deflate: respect platform specific runpath linker flag. [Rainer Jung] *) configure: Only link the httpd binary against PCRE. No other support binary needs PCRE. [Rainer Jung] *) configure: tolerate dependency checking failures for modules if they have been enabled implicitly. [Rainer Jung] *) configure: Allow to specify module specific custom linker flags via the MOD_XXX_LDADD variables. [Rainer Jung] Changes with Apache 2.3.13 *) ab: Support specifying the local address to use. PR 48930. [Peter Schuller ] *) core: Add support to ErrorLogFormat for logging the system unique thread id under Linux. [Stefan Fritsch] *) event: New AsyncRequestWorkerFactor directive to influence how many connections will be accepted per process. [Stefan Fritsch] *) prefork, worker, event: Rename MaxClients to MaxRequestWorkers which describes more accurately what it does. [Stefan Fritsch] *) rotatelogs: Add -p argument to specify custom program to invoke after a log rotation. PR 51285. [Sven Ulland , Joe Orton] *) mod_ssl: Don't do OCSP checks for valid self-issued certs. [Kaspar Brand] *) mod_ssl: Avoid unnecessary renegotiations with SSLVerifyDepth 0. PR 48215. [Kaspar Brand] *) mod_status: Display information about asynchronous connections in the server-status. PR 44377. [Stefan Fritsch] *) mpm_event: If the number of connections of a process is very high, or if all workers are busy, don't accept new connections in that process. [Stefan Fritsch] *) mpm_event: Process lingering close asynchronously instead of tying up worker threads. [Jeff Trawick, Stefan Fritsch] *) mpm_event: If MaxMemFree is set, limit the number of pools that is kept around. [Stefan Fritsch] *) mpm_event: Fix graceful restart aborting connections. PR 43359. [Takashi Sato ] *) mod_ssl: Disable AECDH ciphers in example config. PR 51363. [Rob Stradling ] *) core: Introduce new function ap_get_conn_socket() to access the socket of a connection. [Stefan Fritsch] *) mod_data: Introduce a filter to support RFC2397 data URLs. [Graham Leggett] *) mod_userdir/mod_alias/mod_vhost_alias: Correctly set DOCUMENT_ROOT, CONTEXT_DOCUMENT_ROOT, CONTEXT_PREFIX. PR 26052. PR 46198. [Stefan Fritsch] *) core: Allow to override document_root on a per-request basis. Introduce new context_document_root and context_prefix which provide information about non-global URI-to-directory mappings (from e.g. mod_userdir or mod_alias) to scripts. PR 49705. [Stefan Fritsch] *) core: Add and to complement sections. [Stefan Fritsch] *) mod_ext_filter: Remove DebugLevel option in favor of per-module loglevel. [Stefan Fritsch] *) mod_include: Make the "#if expr" element use the new "ap_expr" expression parser. The old parser can still be used by setting the new directive SSILegacyExprParser. [Stefan Fritsch] *) core: Add some features to ap_expr for use by mod_include: a restricted mode that does not allow to bypass request access restrictions; new variables DOCUMENT_URI (alias for REQUEST_URI), LAST_MODIFIED; -A as an alias for -U; an additional data entry in ap_expr_eval_ctx_t for use by the consumer; an extensible ap_expr_exec_ctx() API that allows to use that data entry. [Stefan Fritsch] *) mod_include: Merge directory configs instead of one SSI* config directive causing all other per-directory SSI* config directives to be reset. [Stefan Fritsch] *) mod_charset_lite: Remove DebugLevel option in favour of per-module loglevel. [Stefan Fritsch] *) core: Add ap_regexec_len() function that works with non-null-terminated strings. PR 51231. [Yehezkel Horowitz ] *) mod_authnz_ldap: If the LDAP server returns constraint violation, don't treat this as an error but as "auth denied". [Stefan Fritsch] *) mod_proxy_fcgi|scgi: Add support for "best guess" of PATH_INFO for SCGI/FCGI. PR 50880, 50851. [Mark Montague , Jim Jagielski] *) mod_cache: When content is served stale, and there is no means to revalidate the content using ETag or Last-Modified, and we have mandated no stale-on-error behaviour, stand down and don't cache. Saves a cache write that will never be read. [Graham Leggett] *) mod_reqtimeout: Fix a timed out connection going into the keep-alive state after a timeout when discarding a request body. PR 51103. [Stefan Fritsch] *) core: Add various file existence test operators to ap_expr. [Stefan Fritsch] *) mod_proxy_express: New mass reverse-proxy switch extension for mod_proxy. [Jim Jagielski] *) configure: Fix script error when configuring module set "reallyall". [Rainer Jung] Changes with Apache 2.3.12 *) configure, core: Provide easier support for APR's hook probe capability. [Jim Jagielski, Jeff Trawick] *) Silence autoconf 2.68 warnings. [Rainer Jung] *) mod_authnz_ldap: Resolve crash when LDAP is used for authorization only [Scott Hill ] *) support: Make sure check_forensic works with mod_unique_id loaded [Joe Schaefer] *) Add child_status hook for tracking creation/termination of MPM child processes. Add end_generation hook for notification when the last MPM child of a generation exits. [Jeff Trawick] *) mod_ldap: Make LDAPSharedCacheSize 0 create a non-shared-memory cache per process as opposed to disabling caching completely. This allows to use the non-shared-memory cache as a workaround for the shared memory cache not being available during graceful restarts. PR 48958. [Stefan Fritsch] *) Add new ap_reserve_module_slots/ap_reserve_module_slots_directive API, necessary if a module (like mod_perl) registers additional modules late in the startup phase. [Stefan Fritsch] *) core: Prevent segfault if DYNAMIC_MODULE_LIMIT is reached. PR 51072. [Torsten Förtsch ] *) WinNT MPM: Improve robustness under heavy load. [Jeff Trawick] *) MinGW build improvements. PR 49535. [John Vandenberg , Jeff Trawick] *) core: Support module names with colons in loglevel configuration. [Torsten Förtsch ] *) mod_ssl, ab: Support OpenSSL compiled without SSLv2 support. [Stefan Fritsch] *) core: Abort if the MPM is changed across restart. [Jeff Trawick] *) mod_proxy_ajp: Add support for 'ProxyErrorOverride on'. PR 50945. [Peter Pramberger , Jim Jagielski] *) mod_proxy_fcgi: Add support for 'ProxyErrorOverride on'. PR 50913. [Mark Montague , Jim Jagielski] *) core: Change the APIs of ap_cfg_getline() and ap_cfg_getc() to return an error code. Abort with a nice error message if a config line is too long. Partial fix for PR 50824. [Stefan Fritsch] *) mod_info: Dump config to stdout during startup if -DDUMP_CONFIG is specified. PR 31956. [Stefan Fritsch] *) Restore visibility of DEFAULT_PIDLOG to core and modules. MPM helper function ap_remove_pid() added. [Jeff Trawick] *) Enable DEFAULT_REL_RUNTIMEDIR on Windows and NetWare. [various] *) Correct C++ incompatibility with http_log.h. [Stefan Fritsch, Jeff Trawick] *) mod_log_config: Prevent segfault. PR 50861. [Torsten Förtsch ] *) core: AllowEncodedSlashes new option NoDecode to allow encoded slashes in request URL path info but not decode them. Change behavior of option "On" to decode the encoded slashes as 2.0 and 2.2 do. PR 35256, PR 46830. [Dan Poirier] *) mod_ssl: Check SNI hostname against Host header case-insensitively. PR 49491. [Mayank Agrawal ] *) mod_ldap: Add LDAPConnectionPoolTTL to give control over lifetime of bound backend LDAP connections. PR47634 [Eric Covener] *) mod_cache: Make CacheEnable and CacheDisable configurable per directory in addition to per server, making them work from within a LocationMatch. [Graham Leggett] *) worker, event, prefork: Correct several issues when built as DSOs; most notably, the scoreboard was reinitialized during graceful restart, such that processes of the previous generation were not observable. [Jeff Trawick] Changes with Apache 2.3.11 *) mod_win32: Added shebang check for '! so that .vbs scripts work as CGI. Win32's cscript interpreter can only use a single quote as comment char. [Guenter Knauf] *) mod_proxy: balancer-manager now uses POST instead of GET. [Jim Jagielski] *) core: new util function: ap_parse_form_data(). Previously, this capability was tucked away in mod_request. [Jim Jagielski] *) core: new hook: ap_run_pre_read_request. [Jim Jagielski] *) modules: Fix many modules that were not correctly initializing if they were not active during server startup but got enabled later during a graceful restart. [Stefan Fritsch] *) core: Create new ap_state_query function that allows modules to determine if the current configuration run is the initial one at server startup, and if the server is started for testing/config dumping only. [Stefan Fritsch] *) mod_proxy: Runtime configuration of many parameters for existing balancers via the balancer-manager. [Jim Jagielski] *) mod_proxy: Runtime addition of new workers (BalancerMember) for existing balancers via the balancer-manager. [Jim Jagielski] *) mod_cache: When a bad Expires date is present, we need to behave as if the Expires is in the past, not as if the Expires is missing. PR 16521. [Co-Advisor ] *) mod_cache: We must ignore quoted-string values that appear in a Cache-Control header. PR 50199. [Graham Leggett] *) mod_dav: Revert change to send 501 error if unknown Content-* header is received for a PUT request. PR 42978. [Stefan Fritsch] *) mod_cache: Respect s-maxage as described by RFC2616 14.9.3, which must take precedence if present. PR 35247. [Graham Leggett] *) mod_ssl: Fix a possible startup failure if multiple SSL vhosts are configured with the same ServerName and private key file. [Masahiro Matsuya , Joe Orton] *) mod_socache_dc: Make module compile by fixing some typos. PR 50735 [Mark Montague ] *) prefork: Update MPM state in children during a graceful stop or restart. PR 41743. [Andrew Punch ] *) mod_mime: Ignore leading dots when looking for mime extensions. PR 50434 [Stefan Fritsch] *) core: Add support to set variables with the 'Define' directive. The variables that can then be used in the config using the ${VAR} syntax known from envvar interpolation. [Stefan Fritsch] *) mod_proxy_http: make adding of X-Forwarded-* headers configurable. ProxyAddHeaders defaults to On. [Vincent Deffontaines] *) mod_slotmem_shm: Increase memory alignment for slotmem data. [Rainer Jung] *) mod_ssl: Add config options for OCSP: SSLOCSPResponderTimeout, SSLOCSPResponseMaxAge, SSLOCSPResponseTimeSkew. [Kaspar Brand ] *) mod_ssl: Revamp output buffering to reduce network overhead for output fragmented into many buckets, such as chunked HTTP responses. [Joe Orton] *) core: Apply sections to all requests, not only to file base requests. Allow to use inside , , and sections. The merging of sections now happens after the merging of sections, even if an section is embedded inside a or section. [Stefan Fritsch] *) mod_proxy: Refactor usage of shared data by dropping the scoreboard and using slotmem. Create foundation for dynamic growth/changes of members within a balancer. Remove BalancerNonce in favor of a per-balancer 'nonce' parameter. [Jim Jagielski] *) mod_status: Don't show slots which are disabled by MaxClients as open. PR 47022 [Jordi Prats , Stefan Fritsch] *) mpm_prefork: Fix ap_mpm_query results for AP_MPMQ_MAX_DAEMONS and AP_MPMQ_MAX_THREADS. *) mod_authz_core: Fix bug in merging logic if user-based and non-user-based authorization directives were mixed. [Stefan Fritsch] *) mod_authn_socache: change directive name from AuthnCacheProvider to AuthnCacheProvideFor. The term "provider" is overloaded in this module, and we should avoid confusion between the provider of a backend (AuthnCacheSOCache) and the authn provider(s) for which this module provides cacheing (AuthnCacheProvideFor). [Nick Kew] *) mod_proxy_http: Allocate the fake backend request from a child pool of the backend connection, instead of misusing the pool of the frontend request. Fixes a thread safety issue where buckets set aside in the backend connection leak into other threads, and then disappear when the frontend request is cleaned up, in turn causing corrupted buckets to make other threads spin. [Graham Leggett] *) mod_ssl: Change the format of the SSL_{CLIENT,SERVER}_{I,S}_DN variables to be RFC 2253 compatible, convert non-ASCII characters to UTF8, and escape other special characters with backslashes. The old format can still be used with the LegacyDNStringFormat argument to SSLOptions. *) core, mod_rewrite: Make the REQUEST_SCHEME variable available to scripts and mod_rewrite. [Stefan Fritsch] *) mod_rewrite: Allow to use arbitrary boolean expressions (ap_expr) in RewriteCond. [Stefan Fritsch] *) mod_rewrite: Allow to unset environment variables using E=!VAR. PR 49512. [Mark Drayton , Stefan Fritsch] *) mod_headers: Restore the 2.3.8 and earlier default for the first argument of the Header directive ("onsuccess"). [Eric Covener] *) core: Disallow the mixing of relative and absolute Options PR 33708. [Sönke Tesch ] *) core: When exporting request headers to HTTP_* environment variables, drop variables whose names contain invalid characters. Describe in the docs how to restore the old behaviour. [Malte S. Stretz ] *) core: When selecting an IP-based virtual host, favor an exact match for the port over a wildcard (or omitted) port instead of favoring the one that came first in the configuration file. [Eric Covener] *) core: Overlapping virtual host address/port combinations now implicitly enable name-based virtual hosting for that address. The NameVirtualHost directive has no effect, and _default_ is interpreted the same as "*". [Eric Covener] *) core: In the absence of any Options directives, the default is now "FollowSymlinks" instead of "All". [Igor Galić] *) rotatelogs: Add -e option to write logs through to stdout for optional further processing. [Graham Leggett] *) mod_ssl: Correctly read full lines in input filter when the line is incomplete during first read. PR 50481. [Ruediger Pluem] *) mod_authz_core: Add AuthzSendForbiddenOnFailure directive to allow sending '403 FORBIDDEN' instead of '401 UNAUTHORIZED' if authorization fails for an authenticated user. PR 40721. [Stefan Fritsch] Changes with Apache 2.3.10 *) mod_rewrite: Don't implicitly URL-escape the original query string when no substitution has changed it. PR 50447. [Eric Covener] *) core: Honor 'AcceptPathInfo OFF' during internal redirects, such as per-directory mod_rewrite substitutions. PR 50349. [Eric Covener] *) mod_rewrite: Add 'RewriteOptions InheritBefore' to put the base rules/conditions before the overridden rules/conditions. PR 39313. [Jérôme Grandjanny ] *) mod_autoindex: add IndexIgnoreReset to reset the list of IndexIgnored filenames in higher precedence configuration sections. PR 24243. [Eric Covener] *) mod_cgid: RLimit* directive support for mod_cgid. PR 42135 [Eric Covener] *) core: Fail startup when the argument to ServerName looks like a glob or a regular expression instead of a hostname (*?[]). PR 39863 [Rahul Nair ] *) mod_userdir: Add merging of enable, disable, and filename arguments to UserDir directive, leaving enable/disable of userlists unmerged. PR 44076 [Eric Covener] *) httpd: When no -k option is provided on the httpd command line, the server was starting without checking for an existing pidfile. PR 50350 [Eric Covener] *) mod_proxy: Put the worker in error state if the SSL handshake with the backend fails. PR 50332. [Daniel Ruggeri , Ruediger Pluem] *) mod_cache_disk: Fix Windows build which was broken after renaming the module. [Gregg L. Smith] Changes with Apache 2.3.9 *) SECURITY: CVE-2010-1623 (cve.mitre.org) Fix a denial of service attack against mod_reqtimeout. [Stefan Fritsch] *) mod_headers: Change default first argument of Header directive from "onsuccess" to "always". [Eric Covener] *) mod_include: Add the onerror attribute to the include element, allowing an URL to be specified to include on error. [Graham Leggett] *) mod_cache_disk: mod_disk_cache renamed to mod_cache_disk, to be consistent with the naming of other modules. [Graham Leggett] *) mod_setenvif: Add SetEnvIfExpr directive to set env var depending on expression. [Stefan Fritsch] *) mod_proxy: Fix ProxyPassInterpolateEnv directive. PR 50292. [Stefan Fritsch] *) suEXEC: Add Suexec directive to disable suEXEC without renaming the binary (Suexec Off), or force startup failure if suEXEC is required but not supported (Suexec On). Change SuexecUserGroup to fail startup instead of just printing a warning if suEXEC is disabled. [Jeff Trawick] *) core: Add Error directive for aborting startup or htaccess processing with a specified error message. [Jeff Trawick] *) mod_rewrite: Fix the RewriteEngine directive to work within a location. Previously, once RewriteEngine was switched on globally, it was impossible to switch off. [Graham Leggett] *) core, mod_include, mod_ssl: Move the expression parser derived from mod_include back into mod_include. Replace ap_expr with a parser derived from mod_ssl's parser. Make mod_ssl use the new parser. Rework ap_expr's public interface and provide hooks for modules to add variables and functions. [Stefan Fritsch] *) core: Do the hook sorting earlier so that the hooks are properly sorted for the pre_config hook and during parsing the config. [Stefan Fritsch] *) core: In the absence of any AllowOverride directives, the default is now "None" instead of "All". PR49823 [Eric Covener] *) mod_proxy: Don't allow ProxyPass or ProxyPassReverse in or . PR47765 [Eric Covener] *) prefork/worker/event MPMS: default value (when no directive is present) of MaxConnectionsPerChild/MaxRequestsPerChild is changed to 0 from 10000 to match default configuration and manual. PR47782 [Eric Covener] *) proxy_connect: Don't give up in the middle of a CONNECT tunnel when the child process is starting to exit. PR50220. [Eric Covener] *) mod_autoindex: Fix inheritance of mod_autoindex directives into contexts that don't have any mod_autoindex directives. PR47766. [Eric Covener] *) mod_rewrite: Add END flag for RewriteRule to prevent further rounds of rewrite processing when a per-directory substitution occurs. [Eric Covener] *) mod_ssl: Make sure to always log an error if loading of CA certificates fails. PR 40312. [Paul Tiemann ] *) mod_dav: Send 501 error if unknown Content-* header is received for a PUT request (RFC 2616 9.6). PR 42978. [Stefan Fritsch] *) mod_dav: Send 400 error if malformed Content-Range header is received for a put request (RFC 2616 14.16). PR 49825. [Stefan Fritsch] *) mod_proxy: Release the backend connection as soon as EOS is detected, so the backend isn't forced to wait for the client to eventually acknowledge the data. [Graham Leggett] *) mod_proxy: Optimise ProxyPass within a Location so that it is stored per-directory, and chosen during the location walk. Make ProxyPass work correctly from within a LocationMatch. [Graham Leggett] *) core: Fix segfault if per-module LogLevel is on virtual host scope. PR 50117. [Stefan Fritsch] *) mod_proxy: Move the ProxyErrorOverride directive to have per directory scope. [Graham Leggett] *) mod_allowmethods: New module to deny certain HTTP methods without interfering with authentication/authorization. [Paul Querna, Igor Galić, Stefan Fritsch] *) mod_ssl: Log certificate information and improve error message if client cert verification fails. PR 50093, PR 50094. [Lassi Tuura , Stefan Fritsch] *) htcacheclean: Teach htcacheclean to limit cache size by number of inodes in addition to size of files. Prevents a cache disk from running out of space when many small files are cached. [Graham Leggett] *) core: Rename MaxRequestsPerChild to MaxConnectionsPerChild, which describes more accurately what the directive does. The old name still works but logs a warning. [Stefan Fritsch] *) mod_cache: Optionally serve stale data when a revalidation returns a 5xx response, controlled by the CacheStaleOnError directive. [Graham Leggett] *) htcacheclean: Allow the listing of valid URLs within the cache, with the option to list entry metadata such as sizes and times. [Graham Leggett] *) mod_cache: correctly parse quoted strings in cache headers. PR 50199 [Nick Kew] *) mod_cache: Allow control over the base URL of reverse proxied requests using the CacheKeyBaseURL directive, so that the cache key can be calculated from the endpoint URL instead of the server URL. [Graham Leggett] *) mod_cache: CacheLastModifiedFactor, CacheStoreNoStore, CacheStorePrivate, CacheStoreExpired, CacheIgnoreNoLastMod, CacheDefaultExpire, CacheMinExpire and CacheMaxExpire can be set per directory/location. [Graham Leggett] *) mod_disk_cache: CacheMaxFileSize, CacheMinFileSize, CacheReadSize and CacheReadTime can be set per directory/location. [Graham Leggett] *) core: Speed up config parsing if using a very large number of config files. PR 50002 [andrew cloudaccess net] *) mod_cache: Support the caching of HEAD requests. [Graham Leggett] *) htcacheclean: Allow the option to round up file sizes to a given block size, improving the accuracy of disk usage. [Graham Leggett] *) mod_ssl: Add authz providers for use with mod_authz_core and its RequireAny/RequireAll containers: 'ssl' (equivalent to SSLRequireSSL), 'ssl-verify-client' (for use with 'SSLVerifyClient optional'), and 'ssl-require' (expressions with same syntax as SSLRequire). [Stefan Fritsch] *) mod_ssl: Make the ssl expression parser thread-safe. It now requires bison instead of yacc. [Stefan Fritsch] *) mod_disk_cache: Change on-disk header file format to support the link of the device/inode of the data file to the matching header file, and to support the option of not writing a data file when the data file is empty. [Graham Leggett] *) core/mod_unique_id: Add generate_log_id hook to allow to use the ID generated by mod_unique_id as error log ID for requests. [Stefan Fritsch] *) mod_cache: Make sure that we never allow a 304 Not Modified response that we asked for to leak to the client should the 304 response be uncacheable. PR45341 [Graham Leggett] *) mod_cache: Add the cache_status hook to register the final cache decision hit/miss/revalidate. Add optional support for an X-Cache and/or an X-Cache-Detail header to add the cache status to the response. PR48241 [Graham Leggett] *) mod_authz_host: Add 'local' provider that matches connections originating on the local host. PR 19938. [Stefan Fritsch] *) Event MPM: Fix crash accessing pollset on worker thread when child process is exiting. [Jeff Trawick] *) core: For process invocation (cgi, fcgid, piped loggers and so forth) pass the system library path (LD_LIBRARY_PATH or platform-specific variables) along with the system PATH, by default. Both should be overridden together as desired using PassEnv etc; see mod_env. [William Rowe] *) mod_cache: Introduce CacheStoreExpired, to allow administrators to capture a stale backend response, perform If-Modified-Since requests against the backend, and serving from the cache all 304 responses. This restores pre-2.2.4 cache behavior. [William Rowe] *) mod_rewrite: Introduce <=, >= string comparison operators, and integer comparators -lt, -le, -eq, -ge, and -gt. To help bash users and drop the ambiguity of the symlink test "-ltest", introduce -h or -L as symlink test operators. [William Rowe] *) mod_cache: Give the cache provider the opportunity to choose to cache or not cache based on the buckets present in the brigade, such as the presence of a FILE bucket. [Graham Leggett] *) mod_authz_core: Allow authz providers to check args while reading the config and allow to cache parsed args. Move 'all' and 'env' authz providers from mod_authz_host to mod_authz_core. Add 'method' authz provider depending on the HTTP method. [Stefan Fritsch] *) mod_include: Move the request_rec within mod_include to be exposed within include_ctx_t. [Graham Leggett] *) mod_include: Reinstate support for UTF-8 character sets by allowing a variable being echoed or set to be decoded and then encoded as separate steps. PR47686 [Graham Leggett] *) mod_cache: Add a discrete commit_entity() provider function within the mod_cache provider interface which is called to indicate to the provider that caching is complete, giving the provider the opportunity to commit temporary files permanently to the cache in an atomic fashion. Replace the inconsistent use of error cleanups with a formal set of pool cleanups attached to a subpool, which is destroyed on error. [Graham Leggett] *) mod_cache: Change the signature of the store_body() provider function within the mod_cache provider interface to support an "in" brigade and an "out" brigade instead of just a single input brigade. This gives a cache provider the option to consume only part of the brigade passed to it, rather than the whole brigade as was required before. This fixes an out of memory and a request timeout condition that would occur when the original document was a large file. Introduce CacheReadSize and CacheReadTime directives to mod_disk_cache to control the amount of data to attempt to cache at a time. [Graham Leggett] *) core: Add ErrorLogFormat to allow configuring error log format, including additional information that is logged once per connection or request. Add error log IDs for connections and request to allow correlating error log lines and the corresponding access log entry. [Stefan Fritsch] *) core: Disable sendfile by default. [Stefan Fritsch] *) mod_cache: Check the request to determine whether we are allowed to return cached content at all, and respect a "Cache-Control: no-cache" header from a client. Previously, "no-cache" would behave like "max-age=0". [Graham Leggett] *) mod_cache: Use a proper filter context to hold filter data instead of misusing the per-request configuration. Fixes a segfault on trunk when the normal handler is used. [Graham Leggett] *) mod_cgid: Log a warning if the ScriptSock path is truncated because it is too long. PR 49388. [Stefan Fritsch] *) vhosts: Do not allow _default_ in NameVirtualHost, or mixing * and non-* ports on NameVirtualHost, or multiple NameVirtualHost directives for the same address:port, or NameVirtualHost directives with no matching VirtualHosts, or multiple ip-based VirtualHost sections for the same address:port. These were previously accepted with a warning, but the behavior was undefined. [Dan Poirier] *) mod_remoteip: Fix a segfault when using mod_remoteip in conjunction with Allow/Deny. PR 49838. [Andrew Skalski ] *) core: DirectoryMatch can now match on the end of line character ($), and sub-directories of matched directories are no longer implicitly matched. PR49809 [Eric Covener] *) Regexps: introduce new higher-level regexp utility including parsing and executing perl-style regexp ops (e.g s/foo/bar/i) and regexp memory [Nick Kew] *) Proxy: support setting source address. PR 29404 [Multiple contributors iterating through bugzilla, Aron Ujvari , Aleksey Midenkov , ] *) mod_dav_fs: Fix broken "creationdate" property. Regression in version 2.3.7. [Rainer Jung] Changes with Apache 2.3.7 *) SECURITY: CVE-2010-1452 (cve.mitre.org) mod_dav, mod_cache, mod_session: Fix Handling of requests without a path segment. PR 49246 [Mark Drayton, Jeff Trawick] *) mod_ldap: Properly check the result returned by apr_ldap_init. PR 46076. [Stefan Fritsch] *) mod_rewrite: Log errors if rewrite map files cannot be opened. PR 49639. [Stefan Fritsch] *) mod_proxy_http: Support the 'ping' property for backend HTTP/1.1 servers via leveraging 100-Continue as the initial "request". [Jim Jagielski] *) core/mod_authz_core: Introduce new access_checker_ex hook that enables mod_authz_core to bypass authentication if access should be allowed by IP address/env var/... [Stefan Fritsch] *) core: Introduce note_auth_failure hook to allow modules to add support for additional auth types. This makes ap_note_auth_failure() work with mod_auth_digest again. PR 48807. [Stefan Fritsch] *) socache modules: return APR_NOTFOUND when a lookup is not found [Nick Kew] *) mod_authn_socache: new module [Nick Kew] *) configure: Add reallyall option for --enable-mods-shared. [Stefan Fritsch] *) Fix Windows build when using VC6. [Gregg L. Smith ] *) mod_rewrite: Allow to set environment variables without explicitly giving a value. [Rainer Jung] *) mod_rewrite: Remove superfluous EOL from rewrite logging. [Rainer Jung] *) mod_include: recognise "text/html; parameters" as text/html PR 49616 [Andrey Chernov ] *) CGI vars: allow PATH to be set by SetEnv, consistent with LD_LIBRARY_PATH PR 43906 [Nick Kew] *) Core: Extra robustness: don't try authz and segfault if authn fails to set r->user. Log bug and return 500 instead. PR 42995 [Nick Kew] *) HTTP protocol filter: fix handling of longer chunk extensions PR 49474 [] *) Update SSL cipher suite and add example for SSLHonorCipherOrder. [Lars Eilebrecht, Rainer Jung] *) move AddOutputFilterByType from core to mod_filter. This should fix nasty side-effects that happen when content_type is set more than once in processing a request, and make it fully compatible with dynamic and proxied contents. [Nick Kew] *) mod_log_config: Implement logging for sub second timestamps and request end time. [Rainer Jung] Changes with Apache 2.3.6 *) SECURITY: CVE-2009-3555 (cve.mitre.org) mod_ssl: Comprehensive fix of the TLS renegotiation prefix injection attack when compiled against OpenSSL version 0.9.8m or later. Introduces the 'SSLInsecureRenegotiation' directive to reopen this vulnerability and offer unsafe legacy renegotiation with clients which do not yet support the new secure renegotiation protocol, RFC 5746. [Joe Orton, and with thanks to the OpenSSL Team] *) SECURITY: CVE-2009-3555 (cve.mitre.org) mod_ssl: A partial fix for the TLS renegotiation prefix injection attack by rejecting any client-initiated renegotiations. Forcibly disable keepalive for the connection if there is any buffered data readable. Any configuration which requires renegotiation for per-directory/location access control is still vulnerable, unless using OpenSSL >= 0.9.8l. [Joe Orton, Ruediger Pluem, Hartmut Keil ] *) SECURITY: CVE-2010-0408 (cve.mitre.org) mod_proxy_ajp: Respond with HTTP_BAD_REQUEST when the body is not sent when request headers indicate a request body is incoming; not a case of HTTP_INTERNAL_SERVER_ERROR. [Niku Toivola ] *) SECURITY: CVE-2010-0425 (cve.mitre.org) mod_isapi: Do not unload an isapi .dll module until the request processing is completed, avoiding orphaned callback pointers. [Brett Gervasoni , Jeff Trawick] *) core: Filter init functions are now run strictly once per request before handler invocation. The init functions are no longer run for connection filters. PR 49328. [Joe Orton] *) core: Adjust the output filter chain correctly in an internal redirect from a subrequest, preserving filters from the main request as necessary. PR 17629. [Joe Orton] *) mod_cache: Explicitly allow cache implementations to cache a 206 Partial Response if they so choose to do so. Previously an attempt to cache a 206 was arbitrarily allowed if the response contained an Expires or Cache-Control header, and arbitrarily denied if both headers were missing. [Graham Leggett] *) core: Add microsecond timestamp fractions, process id and thread id to the error log. [Rainer Jung] *) configure: The "most" module set gets build by default. [Rainer Jung] *) configure: Building dynamic modules (DSO) by default. [Rainer Jung] *) configure: Fix broken VPATH build when using included APR. [Rainer Jung] *) mod_session_crypto: Fix configure problem when building with APR 2 and for VPATH builds with included APR. [Rainer Jung] *) mod_session_crypto: API compatibility with APR 2 crypto and APR Util 1.x crypto. [Rainer Jung] *) ab: Fix memory leak with -v2 and SSL. PR 49383. [Pavel Kankovsky ] *) core: Add per-module and per-directory loglevel configuration. Add some more trace logging. mod_rewrite: Replace RewriteLog/RewriteLogLevel with trace log levels. mod_ssl: Replace LogLevelDebugDump with trace log levels. mod_ssl/mod_proxy*: Adjust loglevels to be less verbose at levels info and debug. mod_dumpio: Replace DumpIOLogLevel with trace log levels. [Stefan Fritsch] *) mod_ldap: LDAP caching was suppressed (and ldap-status handler returns title page only) when any mod_ldap directives were used in VirtualHost context. [Eric Covener] *) mod_disk_cache: Decline the opportunity to cache if the response is a 206 Partial Content. This stops a reverse proxied partial response from becoming cached, and then being served in subsequent responses. [Graham Leggett] *) mod_deflate: avoid the risk of forwarding data before headers are set. PR 49369 [Matthew Steele ] *) mod_authnz_ldap: Ensure nested groups are checked when the top-level group doesn't have any direct non-group members of attributes in AuthLDAPGroupAttribute. [Eric Covener] *) mod_authnz_ldap: Search or Comparison during authorization phase can use the credentials from the authentication phase (AuthLDAPSearchAsUSer,AuthLDAPCompareAsUser). PR 48340 [Domenico Rotiroti, Eric Covener] *) mod_authnz_ldap: Allow the initial DN search during authentication to use the HTTP username/pass instead of an anonymous or hard-coded LDAP id (AuthLDAPInitialBindAsUser, AuthLDAPInitialBindPattern). [Eric Covener] *) mod_authnz_ldap: Publish requested LDAP data with an AUTHORIZE_ prefix when this module is used for authorization. See AuthLDAPAuthorizePrefix. PR 45584 [Eric Covener] *) apxs -q: Stop filtering out ':' characters from the reported values. PR 45343. [Bill Cole] *) prefork MPM: Work around possible crashes on child exit in APR reslist cleanup code. PR 43857. [Tom Donovan] *) ab: fix number of requests sent by ab when keepalive is enabled. PR 48497. [Bryn Dole ] *) Log an error for failures to read a chunk-size, and return 408 instead of 413 when this is due to a read timeout. This change also fixes some cases of two error documents being sent in the response for the same scenario. [Eric Covener] PR49167 *) mod_proxy_balancer: Add new directive BalancerNonce to allow admin to control/set the nonce used in the balancer-manager application. [Jim Jagielski] *) mod_proxy_connect: Support port ranges in AllowConnect. PR 23673. [Stefan Fritsch] *) Proxy balancer: support setting error status according to HTTP response code from a backend. PR 48939. [Daniel Ruggeri ] *) htcacheclean: Introduce the ability to clean specific URLs from the cache, if provided as an optional parameter on the command line. [Graham Leggett] *) core: Introduce the IncludeStrict directive, which explicitly fails server startup if no files or directories match a wildcard path. [Graham Leggett] *) htcacheclean: Report additional statistics about entries deleted. PR 48944. [Mark Drayton mark markdrayton.info] *) Introduce SSLFIPS directive to support OpenSSL FIPS_mode; permits all builds of mod_ssl to use 'SSLFIPS off' for portability, but the proper build of openssl is required for 'SSLFIPS on'. PR 46270. [Dr Stephen Henson , William Rowe] *) mod_proxy_http: Log the port of the remote server in various messages. PR 48812. [Igor Galić ] *) mod_reqtimeout: Do not wrongly enforce timeouts for mod_proxy's backend connections and other protocol handlers (like mod_ftp). [Stefan Fritsch] *) mod_proxy_ajp: Really regard the operation a success, when the client aborted the connection. In addition adjust the log message if the client aborted the connection. [Ruediger Pluem] *) mod_ssl: Add the 'SSLInsecureRenegotiation' directive, which allows insecure renegotiation with clients which do not yet support the secure renegotiation protocol. [Joe Orton] *) mod_ssl: Fix a potential I/O hang if a long list of trusted CAs is configured for client cert auth. PR 46952. [Joe Orton] *) core: Only log a 408 if it is no keepalive timeout. PR 39785 [Ruediger Pluem, Mark Montague ] *) support/rotatelogs: Add -L option to create a link to the current log file. PR 48761 [, Dan Poirier] *) mod_ldap: Update LDAPTrustedClientCert to consistently be a per-directory setting only, matching most of the documentation and examples. PR 46541 [Paul Reder, Eric Covener] *) mod_ldap: LDAPTrustedClientCert now accepts CA_DER/CA_BASE64 argument types previously allowed only in LDAPTrustedGlobalCert. [Eric Covener] *) mod_negotiation: Preserve query string over multiviews negotiation. This buglet was fixed for type maps in 2.2.6, but the same issue affected multiviews and was overlooked. PR 33112 [Joergen Thomsen ] *) mod_ldap: Eliminate a potential crash with multiple LDAPTrustedClientCert when some are not password-protected. [Eric Covener] *) Fix startup segfault when the Mutex directive is used but no loaded modules use httpd mutexes. PR 48787. [Jeff Trawick] *) Proxy: get the headers right in a HEAD request with ProxyErrorOverride, by checking for an overridden error before not after going into a catch-all code path. PR 41646. [Nick Kew, Stuart Children] *) support/rotatelogs: Support the simplest log rotation case, log truncation. Useful when the log is being processed in real time using a command like tail. [Graham Leggett] *) support/htcacheclean: Teach it how to write a pid file (modelled on httpd's writing of a pid file) so that it becomes possible to run more than one instance of htcacheclean on the same machine. [Graham Leggett] *) Log command line on startup, so there's a record of command line arguments like -f. PR 48752. [Dan Poirier] *) Introduce mod_reflector, a handler capable of reflecting POSTed request bodies back within the response through the output filter stack. Can be used to turn an output filter into a web service. [Graham Leggett] *) mod_proxy_http: Make sure that when an ErrorDocument is served from a reverse proxied URL, that the subrequest respects the status of the original request. This brings the behaviour of proxy_handler in line with default_handler. PR 47106. [Graham Leggett] *) Support wildcards in both the directory and file components of the path specified by the Include directive. [Graham Leggett] *) mod_proxy, mod_proxy_http: Support remote https proxies by using HTTP CONNECT. PR 19188. [Philippe Dutrueux , Rainer Jung] *) apxs: Fix -A and -a options to ignore whitespace in httpd.conf [Philip M. Gollucci] *) worker: Don't report server has reached MaxClients until it has. Add message when server gets within MinSpareThreads of MaxClients. PR 46996. [Dan Poirier] *) mod_session: Session expiry was being initialised, but not updated on each session save, resulting in timed out sessions when there should not have been. Fixed. [Graham Leggett] *) mod_log_config: Add the R option to log the handler used within the request. [Christian Folini ] *) mod_include: Allow fine control over the removal of Last-Modified and ETag headers within the INCLUDES filter, making it possible to cache responses if desired. Fix the default value of the SSIAccessEnable directive. [Graham Leggett] *) Add new UnDefine directive to undefine a variable. PR 35350. [Stefan Fritsch] *) Make ap_pregsub(), used by AliasMatch and friends, use the same syntax for regex backreferences as mod_rewrite and mod_include: Remove the use of '&' as an alias for '$0' and allow to escape any character with a backslash. PR 48351. [Stefan Fritsch] *) mod_authnz_ldap: If AuthLDAPCharsetConfig is set, also convert the password to UTF-8. PR 45318. [Johannes Müller , Stefan Fritsch] *) ab: Fix calculation of requests per second in HTML output. PR 48594. [Stefan Fritsch] *) mod_authnz_ldap: Failures to map a username to a DN, or to check a user password now result in an informational level log entry instead of warning level. [Eric Covener] Changes with Apache 2.3.5 *) SECURITY: CVE-2010-0434 (cve.mitre.org) Ensure each subrequest has a shallow copy of headers_in so that the parent request headers are not corrupted. Eliminates a problematic optimization in the case of no request body. PR 48359 [Jake Scott, William Rowe, Ruediger Pluem] *) Turn static function get_server_name_for_url() into public ap_get_server_name_for_url() and use it where appropriate. This fixes mod_rewrite generating invalid URLs for redirects to IPv6 literal addresses. [Stefan Fritsch] *) mod_ldap: Introduce new config option LDAPTimeout to set the timeout for LDAP operations like bind and search. [Stefan Fritsch] *) mod_proxy, mod_proxy_ftp: Move ProxyFtpDirCharset from mod_proxy to mod_proxy_ftp. [Takashi Sato] *) mod_proxy, mod_proxy_connect: Move AllowCONNECT from mod_proxy to mod_proxy_connect. [Takashi Sato] *) mod_cache: Do an exact match of the keys defined by CacheIgnoreURLSessionIdentifiers against the querystring instead of a partial match. PR 48401. [Dodou Wang , Ruediger Pluem] *) mod_proxy_balancer: Fix crash in balancer-manager. [Rainer Jung] *) Core HTTP: disable keepalive when the Client has sent Expect: 100-continue but we respond directly with a non-100 response. Keepalive here led to data from clients continuing being treated as a new request. PR 47087 [Nick Kew] *) Core: reject NULLs in request line or request headers. PR 43039 [Nick Kew] *) Core: (re)-introduce -T commandline option to suppress documentroot check at startup. PR 41887 [Jan van den Berg ] *) mod_autoindex: support XHTML as equivalent to HTML in IndexOptions, ScanHTMLTitles, ReadmeName, HeaderName PR 48416 [Dmitry Bakshaev , Nick Kew] *) Proxy: Fix ProxyPassReverse with relative URL Derived (slightly erroneously) from PR 38864 [Nick Kew] *) mod_headers: align Header Edit with Header Set when used on Content-Type PR 48422 [Cyril Bonté , Nick Kew>] *) mod_headers: Enable multi-match-and-replace edit option PR 46594 [Nick Kew] *) mod_filter: enable it to act on non-200 responses. PR 48377 [Nick Kew] Changes with Apache 2.3.4 *) Replace AcceptMutex, LockFile, RewriteLock, SSLMutex, SSLStaplingMutex, and WatchdogMutexPath with a single Mutex directive. Add APIs to simplify setup and user customization of APR proc and global mutexes. (See util_mutex.h.) Build-time setting DEFAULT_LOCKFILE is no longer respected; set DEFAULT_REL_RUNTIMEDIR instead. [Jeff Trawick] *) http_core: KeepAlive no longer accepts other than On|Off. [Takashi Sato] *) mod_dav: Remove errno from dav_error interface. Calls to dav_new_error() and dav_new_error_tag() must be adjusted to add an apr_status_t parameter. [Jeff Trawick] *) mod_authnz_ldap: Add AuthLDAPBindAuthoritative to allow Authentication to try other providers in the case of an LDAP bind failure. PR 46608 [Justin Erenkrantz, Joe Schaefer, Tony Stevenson] *) Build: fix --with-module to work as documented PR 43881 [Gez Saunders ] Changes with Apache 2.3.3 *) SECURITY: CVE-2009-3095 (cve.mitre.org) mod_proxy_ftp: sanity check authn credentials. [Stefan Fritsch , Joe Orton] *) SECURITY: CVE-2009-3094 (cve.mitre.org) mod_proxy_ftp: NULL pointer dereference on error paths. [Stefan Fritsch , Joe Orton] *) mod_ssl: enable support for ECC keys and ECDH ciphers. Tested against OpenSSL 1.0.0b3. [Vipul Gupta , Sander Temme] *) mod_dav: Include uri when logging a PUT error due to connection abort. PR 38149. [Stefan Fritsch] *) mod_dav: Return 409 instead of 500 for a LOCK request if the parent resource does not exist or is not a collection. PR 43465. [Stefan Fritsch] *) mod_dav_fs: Return 409 instead of 500 for Litmus test case copy_nodestcoll (a COPY request where the parent of the destination resource does not exist). PR 39299. [Stefan Fritsch] *) mod_dav_fs: Don't delete the whole file if a PUT with content-range failed. PR 42896. [Stefan Fritsch] *) mod_dav_fs: Make PUT create files atomically and no longer destroy the old file if the transfer aborted. PR 39815. [Paul Querna, Stefan Fritsch] *) mod_dav_fs: Remove inode keyed locking as this conflicts with atomically creating files. On systems with inode numbers, this is a format change of the DavLockDB. The old DavLockDB must be deleted on upgrade. [Stefan Fritsch] *) mod_log_config: Make ${cookie}C correctly match whole cookie names instead of substrings. PR 28037. [Dan Franklin , Stefan Fritsch] *) vhost: A purely-numeric Host: header should not be treated as a port. PR 44979 [Nick Kew] *) mod_ldap: Avoid 500 errors with "Unable to set LDAP_OPT_REFHOPLIMIT option to 5" when built against openldap by using SDK LDAP_OPT_REFHOPLIMIT defaults unless LDAPReferralHopLimit is explicitly configured. [Eric Covener] *) mod_charset_lite: Honor 'CharsetOptions NoImplicitAdd'. [Eric Covener] *) mod_ssl: Add support for OCSP Stapling. PR 43822. [Dr Stephen Henson ] *) mod_socache_shmcb: Allow parens in file name if cache size is given. Fixes SSLSessionCache directive mis-parsing parens in pathname. PR 47945. [Stefan Fritsch] *) htpasswd: Improve out of disk space handling. PR 30877. [Stefan Fritsch] *) htpasswd: Use MD5 hash by default on all platforms. [Stefan Fritsch] *) mod_sed: Reduce memory consumption when processing very long lines. PR 48024 [Basant Kumar Kukreja ] *) ab: Fix segfault in case the argument for -n is a very large number. PR 47178. [Philipp Hagemeister ] *) Allow ProxyPreserveHost to work in sections. PR 34901. [Stefan Fritsch] *) configure: Fix THREADED_MPMS so that mod_cgid is enabled again for worker MPM. [Takashi Sato] *) mod_dav: Provide a mechanism to obtain the request_rec and pathname from the dav_resource. [Jari Urpalainen , Brian France ] *) Build: Use install instead of cp if available on installing modules to avoid segmentation fault. PR 47951. [hirose31 gmail.com] *) mod_cache: correctly consider s-maxage in cacheability decisions. [Dan Poirier] *) mod_logio/core: Report more accurate byte counts in mod_status if mod_logio is loaded. PR 25656. [Stefan Fritsch] *) mod_ldap: If LDAPSharedCacheSize is too small, try harder to purge some cache entries and log a warning. Also increase the default LDAPSharedCacheSize to 500000. This is a more realistic size suitable for the default values of 1024 for LdapCacheEntries/LdapOpCacheEntries. PR 46749. [Stefan Fritsch] *) mod_rewrite: Make sure that a hostname:port isn't fully qualified if the request is a CONNECT request. [Bill Zajac ] *) mod_cache: Teach CacheEnable and CacheDisable to work from within a Location section, in line with how ProxyPass works. [Graham Leggett] *) mod_reqtimeout: New module to set timeouts and minimum data rates for receiving requests from the client. [Stefan Fritsch] *) core: Fix potential memory leaks by making sure to not destroy bucket brigades that have been created by earlier filters. [Stefan Fritsch] *) core, mod_deflate, mod_sed: Reduce memory usage by reusing bucket brigades in several places. [Stefan Fritsch] *) mod_cache: Fix uri_meets_conditions() so that CacheEnable will match by scheme, or by a wildcarded hostname. PR 40169 [Peter Grandi , Graham Leggett] *) suxec: Allow to log an error if exec fails by setting FD_CLOEXEC on the log file instead of closing it. PR 10744. [Nicolas Rachinsky] *) mod_mime: Make RemoveType override the info from TypesConfig. PR 38330. [Stefan Fritsch] *) mod_cache: Introduce the option to run the cache from within the normal request handler, and to allow fine grained control over where in the filter chain content is cached. Adds CacheQuickHandler directive. [Graham Leggett] *) core: Treat timeout reading request as 408 error, not 400. Log 408 errors in access log as was done in Apache 1.3.x. PR 39785 [Nobutaka Mantani , Stefan Fritsch , Dan Poirier] *) mod_ssl: Reintroduce SSL_CLIENT_S_DN, SSL_CLIENT_I_DN, SSL_SERVER_S_DN, SSL_SERVER_I_DN back to the environment variables to be set by mod_ssl. [Peter Sylvester ] *) mod_disk_cache: don't cache incomplete responses, per RFC 2616, 13.8. PR15866. [Dan Poirier] *) ab: ab segfaults in verbose mode on https sites PR46393. [Ryan Niebur] *) mod_dav: Allow other modules to become providers and add resource types to the DAV response. [Jari Urpalainen , Brian France ] *) mod_dav: Allow other modules to add things to the DAV or Allow headers of an OPTIONS request. [Jari Urpalainen , Brian France ] *) core: Lower memory usage of core output filter. [Stefan Fritsch ] *) mod_mime: Detect invalid use of MultiviewsMatch inside Location and LocationMatch sections. PR47754. [Dan Poirier] *) mod_request: Make sure the KeptBodySize directive rejects values that aren't valid numbers. [Graham Leggett] *) mod_session_crypto: Sanity check should the potentially encrypted session cookie be too short. [Graham Leggett] *) mod_session.c: Prevent a segfault when session is added but not configured. [Graham Leggett] *) htcacheclean: 19 ways to fail, 1 error message. Fixed. [Graham Leggett] *) mod_auth_digest: Fail server start when nonce count checking is configured without shared memory, or md5-sess algorithm is configured. [Dan Poirier] *) mod_proxy_connect: The connect method doesn't work if the client is connecting to the apache proxy through an ssl socket. Fixed. PR29744. [Brad Boyer, Mark Cave-Ayland, Julian Gilbey, Fabrice Durand, David Gence, Tim Dodge, Per Gunnar Hans, Emmanuel Elango, Kevin Croft, Rudolf Cardinal] *) mod_ssl: The error message when SSLCertificateFile is missing should at least give the name or position of the problematic virtual host definition. [Stefan Fritsch sf sfritsch.de] *) mod_auth_digest: Fix null pointer when qop=none. [Dan Poirier] *) Add support for HTTP PUT to ab. [Jeff Barnes ] *) mod_headers: generalise the envclause to support expression evaluation with ap_expr parser [Nick Kew] *) mod_cache: Introduce the thundering herd lock, a mechanism to keep the flood of requests at bay that strike a backend webserver as a cached entity goes stale. [Graham Leggett] *) mod_auth_digest: Fix usage of shared memory and re-enable it. PR 16057 [Dan Poirier] *) Preserve Port information over internal redirects PR 35999 [Jonas Ringh ] *) Proxy: unable to connect to a backend is SERVICE_UNAVAILABLE, rather than BAD_GATEWAY or (especially) NOT_FOUND. PR 46971 [evanc nortel.com] *) Various modules: Do better checking of pollset operations in order to avoid segmentation faults if they fail. PR 46467 [Stefan Fritsch ] *) mod_autoindex: Correctly create an empty cell if the description for a file is missing. PR 47682 [Peter Poeml ] *) ab: Fix broken error messages after resolver or connect() failures. [Jeff Trawick] *) SECURITY: CVE-2009-1890 (cve.mitre.org) Fix a potential Denial-of-Service attack against mod_proxy in a reverse proxy configuration, where a remote attacker can force a proxy process to consume CPU time indefinitely. [Nick Kew, Joe Orton] *) SECURITY: CVE-2009-1191 (cve.mitre.org) mod_proxy_ajp: Avoid delivering content from a previous request which failed to send a request body. PR 46949 [Ruediger Pluem] *) htdbm: Fix possible buffer overflow if dbm database has very long values. PR 30586 [Dan Poirier] *) core: Return APR_EOF if request body is shorter than the length announced by the client. PR 33098 [ Stefan Fritsch ] *) mod_suexec: correctly set suexec_enabled when httpd is run by a non-root user and may have insufficient permissions. PR 42175 [Jim Radford ] *) mod_ssl: Fix SSL_*_DN_UID variables to use the 'userID' attribute type. PR 45107. [Michael Ströder , Peter Sylvester ] *) mod_proxy_http: fix case sensitivity checking transfer encoding PR 47383 [Ryuzo Yamamoto ] *) mod_alias: ensure Redirect issues a valid URL. PR 44020 [Håkon Stordahl ] *) mod_dir: add FallbackResource directive, to enable admin to specify an action to happen when a URL maps to no file, without resorting to ErrorDocument or mod_rewrite. PR 47184 [Nick Kew] *) mod_cgid: Do not leak the listening Unix socket file descriptor to the CGI process. PR 47335 [Kornél Pál ] *) mod_rewrite: Remove locking for writing to the rewritelog. PR 46942 [Dan Poirier ] *) mod_alias: check sanity in Redirect arguments. PR 44729 [Sönke Tesch , Jim Jagielski] *) mod_proxy_http: fix Host: header for literal IPv6 addresses. PR 47177 [Carlos Garcia Braschi ] *) mod_cache: Add CacheIgnoreURLSessionIdentifiers directive to ignore defined session identifiers encoded in the URL when caching. [Ruediger Pluem] *) mod_rewrite: Fix the error string returned by RewriteRule. RewriteRule returned "RewriteCond: bad flag delimiters" when the 3rd argument of RewriteRule was not started with "[" or not ended with "]". PR 45082 [Vitaly Polonetsky ] *) Windows: Fix usage message. [Rainer Jung] *) apachectl: When passing through arguments to httpd in non-SysV mode, use the "$@" syntax to preserve arguments. [Eric Covener] *) mod_dbd: add DBDInitSQL directive to enable SQL statements to be run when a connection is opened. PR 46827 [Marko Kevac ] *) mod_cgid: Improve handling of long AF_UNIX socket names (ScriptSock). PR 47037. [Jeff Trawick] *) mod_proxy_ajp: Check more strictly that the backend follows the AJP protocol. [Mladen Turk] *) mod_proxy_ajp: Forward remote port information by default. [Rainer Jung] *) Allow MPMs to be loaded dynamically, as with most other modules. Use --enable-mpms-shared={list|"all"} to enable. This required changes to the MPM interfaces. Removed: mpm.h, mpm_default.h (as an installed header), APACHE_MPM_DIR, MPM_NAME, ap_threads_per_child, ap_max_daemons_limit, ap_my_generation, etc. ap_mpm_query() can't be called until after the register-hooks phase. [Jeff Trawick] *) mod_ssl: Add SSLProxyCheckPeerExpire and SSLProxyCheckPeerCN directives to enable stricter checking of remote server certificates. [Ruediger Pluem] *) ab: Fix a 100% CPU loop on platforms where a failed non-blocking connect returns EINPROGRESS and a subsequent poll() returns only POLLERR. Observed on HP-UX. [Eric Covener] *) Remove broken support for BeOS, TPF, and even older platforms such as A/UX, Next, and Tandem. [Jeff Trawick] *) mod_proxy_ftp: Add ProxyFtpListOnWildcard directive to allow files with globbing characters to be retrieved instead of converted into a directory listing. PR 46789 [Dan Poirier ] *) Provide ap_retained_data_create()/ap_retained_data_get() for preservation of module state across unload/load. [Jeff Trawick] *) mod_substitute: Fix a memory leak. PR 44948 [Dan Poirier ] Changes with Apache 2.3.2 *) mod_mime_magic: Fix detection of compressed content. [Rainer Jung] *) mod_negotiation: Escape paths of filenames in 406 responses to avoid HTML injections and HTTP response splitting. PR 46837. [Geoff Keating ] *) mod_ssl: add support for type-safe STACK constructs in OpenSSL development HEAD. PR 45521. [Kaspar Brand, Sander Temme] *) ab: Fix maintenance of the pollset to resolve EALREADY errors with kqueue (BSD/OS X) and excessive CPU with event ports (Solaris). PR 44584. Use APR_POLLSET_NOCOPY for better performance with some pollset implementations. [Jeff Trawick] *) mod_disk_cache: The module now turns off sendfile support if 'EnableSendfile off' is defined globally. [Lars Eilebrecht] *) mod_deflate: Adjust content metadata before bailing out on 304 responses so that the metadata does not differ from 200 response. [Roy T. Fielding] *) mod_deflate: Fix creation of invalid Etag headers. We now make sure that the Etag value is properly quoted when adding the gzip marker. PR 39727, 45023. [Lars Eilebrecht, Roy T. Fielding] *) Added 20x22 icons for ODF, SVG, and XML documents. PR 37185. [Peter Harlow] *) Disabled DefaultType directive and removed ap_default_type() from core. We now exclude Content-Type from responses for which a media type has not been configured via mime.types, AddType, ForceType, or some other mechanism. PR 13986. [Roy T. Fielding] *) mod_rewrite: Add IPV6 variable to RewriteCond [Ryan Phillips ] *) core: Enhance KeepAliveTimeout to support a value in milliseconds. PR 46275. [Takashi Sato] *) rotatelogs: Allow size units B, K, M, G and combination of time and size based rotation. [Rainer Jung] *) rotatelogs: Add flag for verbose (debug) output. [Rainer Jung] *) mod_ssl: Fix merging of SSLRenegBufferSize directive. PR 46508 [] *) core: Translate the the status line to ASCII on EBCDIC platforms in ap_send_interim_response() and for locally generated "100 Continue" responses. [Eric Covener] *) prefork: Fix child process hang during graceful restart/stop in configurations with multiple listening sockets. PR 42829. [Joe Orton, Jeff Trawick] *) mod_session_crypto: Ensure that SessionCryptoDriver can only be set in the global scope. [Graham Leggett] *) mod_ext_filter: We need to detect failure to startup the filter program (a mangled response is not acceptable). Fix to detect failure, and offer configuration option either to abort or to remove the filter and continue. PR 41120 [Nick Kew] *) mod_session_crypto: Rewrite the session_crypto module against the apr_crypto API. [Graham Leggett] *) mod_auth_form: Fix a pool lifetime issue, don't remove the subrequest until the main request is cleaned up. [Graham Leggett] Changes with Apache 2.3.1 *) ap_slotmem: Add in new slot-based memory access API impl., including 2 providers (mod_sharedmem and mod_plainmem) [Jim Jagielski, Jean-Frederic Clere, Brian Akins ] *) mod_include: support generating non-ASCII characters as entities in SSI PR 25202 [Nick Kew] *) core/utils: Enhance ap_escape_html API to support escaping non-ASCII chars PR 25202 [Nick Kew] *) mod_rewrite: fix "B" flag breakage by reverting r5589343 PR 45529 [Bob Ionescu ] *) CGI: return 504 (Gateway timeout) rather than 500 when a script times out before returning status line/headers. PR 42190 [Nick Kew] *) mod_cgid: fix segfault problem on solaris. PR 39332 [Masaoki Kobayashi ] *) mod_proxy_scgi: Added. [André Malo] *) mod_cache: Introduce 'no-cache' per-request environment variable to prevent the saving of an otherwise cacheable response. [Eric Covener] *) mod_rewrite: Introduce DiscardPathInfo|DPI flag to stop the troublesome way that per-directory rewrites append the previous notion of PATH_INFO to each substitution before evaluating subsequent rules. PR 38642 [Eric Covener] *) mod_cgid: Do not add an empty argument when calling the CGI script. PR 46380 [Ruediger Pluem] *) scoreboard: Remove unused sb_type from process_score. [Torsten Foertsch , Chris Darroch] *) mod_ssl: Add SSLRenegBufferSize directive to allow changing the size of the buffer used for the request-body where necessary during a per-dir renegotiation. PR 39243. [Joe Orton] *) mod_proxy_fdpass: New module to pass a client connection over to a separate process that is reading from a unix daemon socket. *) mod_ssl: Improve environment variable extraction to be more efficient and to correctly handle DNs with duplicate tags. PR 45975. [Joe Orton] *) Remove the obsolete serial attribute from the RPM spec file. Compile against the external pcre. Add missing binaries fcgistarter, and mod_socache* and mod_session*. [Graham Leggett] Changes with Apache 2.3.0 *) mod_ratelimit: New module to do bandwidth rate limiting. [Paul Querna] *) Remove X-Pad header which was added as a work around to a bug in Netscape 2.x to 4.0b2. [Takashi Sato ] *) Add DTrace Statically Defined Tracing (SDT) probes. [Theo Schlossnagle , Paul Querna] *) mod_proxy_balancer: Move all load balancing implementations as individual, self-contained mod_proxy submodules under modules/proxy/balancers [Jim Jagielski] *) Rename APIs to include ap_ prefix: find_child_by_pid -> ap_find_child_by_pid suck_in_APR -> ap_suck_in_APR sys_privileges_handlers -> ap_sys_privileges_handlers unixd_accept -> ap_unixd_accept unixd_config -> ap_unixd_config unixd_killpg -> ap_unixd_killpg unixd_set_global_mutex_perms -> ap_unixd_set_global_mutex_perms unixd_set_proc_mutex_perms -> ap_unixd_set_proc_mutex_perms unixd_set_rlimit -> ap_unixd_set_rlimit [Paul Querna] *) mod_lbmethod_heartbeat: New module to load balance mod_proxy workers based on heartbeats. [Paul Querna] *) mod_heartmonitor: New module to collect heartbeats, and write out a file so that other modules can load balance traffic as needed. [Paul Querna] *) mod_heartbeat: New module to generate multicast heartbeats to know if a server is online. [Paul Querna] *) mod_buffer: Honour the flush bucket and flush the buffer in the input filter. Make sure that metadata buckets are written to the buffer, not to the final brigade. [Graham Leggett] *) mod_buffer: Optimise the buffering of heap buckets when the heap buckets stay exactly APR_BUCKET_BUFF_SIZE long. [Graham Leggett, Ruediger Pluem] *) mod_buffer: Optional support for buffering of the input and output filter stacks. Can collapse many small buckets into fewer larger buckets, and prevents excessively small chunks being sent over the wire. [Graham Leggett] *) mod_privileges: new module to make httpd on Solaris privileges-aware and to enable different virtualhosts to run with different privileges and Unix user/group IDs [Nick Kew] *) mod_mem_cache: this module has been removed. [William Rowe] *) authn/z: Remove mod_authn_default and mod_authz_default. [Chris Darroch] *) authz: Fix handling of authz configurations, make default authz logic replicate 2.2.x authz logic, and replace , Reject, and AuthzMergeRules directives with Match, , and AuthzMerge directives. [Chris Darroch] *) mod_authn_core: Prevent crash when provider alias created to provider which is not yet registered. [Chris Darroch] *) mod_authn_core: Add AuthType of None to support disabling authentication. [Chris Darroch] *) core: Allow and directives to nest, and constrain their use to conform with that of other access control and authorization directives. [Chris Darroch] *) unixd: turn existing code into a module, and turn the set user/group and chroot into a child_init function. [Nick Kew] *) mod_dir: Support "DirectoryIndex disabled" Suggested By André Warnier [Eric Covener] *) mod_ssl: Send Content-Type application/ocsp-request for POST requests to OSCP responders. PR 46014 [Dr Stephen Henson ] *) mod_authnz_ldap: don't return NULL-valued environment variables to other modules. PR 39045 [Francois Pesce ] *) Don't adjust case in pathname components that are not of interest to mod_mime. Fixes mod_negotiation's use of such components. PR 43250 [Basant Kumar Kukreja ] *) Be tolerant in what you accept - accept slightly broken status lines from a backend provided they include a valid status code. PR 44995 [Rainer Jung ] *) New module mod_sed: filter Request/Response bodies through sed [Basant Kumar Kukreja ] *) mod_auth_form: Make sure that basic authentication is correctly faked directly after login. [Graham Leggett] *) mod_session_cookie, mod_session_dbd: Make sure cookies are set both within the output headers and error output headers, so that the session is maintained across redirects. [Graham Leggett] *) mod_auth_form: Make sure the logged in user is populated correctly after a form login. Fixes a missing REMOTE_USER variable directly following a login. [Graham Leggett] *) mod_session_cookie: Make sure that cookie attributes are correctly included in the blank cookie when cookies are removed. This fixes an inability to log out when using mod_auth_form. [Graham Leggett] *) mod_session: Prevent a segfault when a CGI script sets a cookie with a null value. [David Shane Holden ] *) core, authn/z: Determine registered authn/z providers directly in ap_setup_auth_internal(), which allows optional functions that just wrapped ap_list_provider_names() to be removed from authn/z modules. [Chris Darroch] *) authn/z: Convert common provider version strings to macros. [Chris Darroch] *) core: When testing for slash-terminated configuration paths in ap_location_walk(), don't look past the start of an empty string such as that created by a directive. [Chris Darroch] *) core, mod_proxy: If a kept_body is present, it becomes safe for subrequests to support message bodies. Make sure that safety checks within the core and within the proxy are not triggered when kept_body is present. This makes it possible to embed proxied POST requests within mod_include. [Graham Leggett] *) mod_auth_form: Make sure the input filter stack is properly set up before reading the login form. Make sure the kept body filter is correctly inserted to ensure the body can be read a second time safely should the authn be successful. [Graham Leggett, Ruediger Pluem] *) mod_request: Insert the KEPT_BODY filter via the insert_filter hook instead of during fixups. Add a safety check to ensure the filters cannot be inserted more than once. [Graham Leggett, Ruediger Pluem] *) ap_cache_cacheable_headers_out() will (now) always merge an error headers _before_ clearing them and _before_ merging in the actual entity headers and doing normal hop-by-hop cleansing. [Dirk-Willem van Gulik]. *) cache: retire ap_cache_cacheable_hdrs_out() which was used for both in- and out-put headers; and replace it by a single ap_cache_cacheable_headers() wrapped in a in- and out-put specific ap_cache_cacheable_headers_in()/out(). The latter which will also merge error and ensure content-type. To keep cache modules consistent with ease. This API change bumps up the minor MM by one [Dirk-Willem van Gulik]. *) Move the KeptBodySize directive, kept_body filters and the ap_parse_request_body function out of the http module and into a new module called mod_request, reducing the size of the core. [Graham Leggett] *) mod_dbd: Handle integer configuration directive parameters with a dedicated function. *) Change the directives within the mod_session* modules to be valid both inside and outside the location/directory sections, as suggested by wrowe. [Graham Leggett] *) mod_auth_form: Add a module capable of allowing end users to log in using an HTML form, storing the credentials within mod_session. [Graham Leggett] *) Add a function to the http filters that is able to parse an HTML form request with the type of application/x-www-form-urlencoded. [Graham Leggett] *) mod_session_crypto: Initialise SSL in the post config hook. [Ruediger Pluem, Graham Leggett] *) mod_session_dbd: Add a session implementation capable of storing session information in a SQL database via the dbd interface. Useful for sites where session privacy is important. [Graham Leggett] *) mod_session_crypto: Add a session encoding implementation capable of encrypting and decrypting sessions wherever they may be stored. Introduces a level of privacy when sessions are stored on the browser. [Graham Leggett] *) mod_session_cookie: Add a session implementation capable of storing session information within cookies on the browser. Useful for high volume sites where server bound sessions are too resource intensive. [Graham Leggett] *) mod_session: Add a generic session interface to unify the different attempts at saving persistent sessions across requests. [Graham Leggett] *) core, authn/z: Avoid calling access control hooks for internal requests with configurations which match those of initial request. Revert to original behaviour (call access control hooks for internal requests with URIs different from initial request) if any access control hooks or providers are not registered as permitting this optimization. Introduce wrappers for access control hook and provider registration which can accept additional mode and flag data. [Chris Darroch] *) Introduced ap_expr API for expression evaluation. This is adapted from mod_include, which is the first module to use the new API. [Nick Kew] *) mod_authz_dbd: When redirecting after successful login/logout per AuthzDBDRedirectQuery, do not report authorization failure, and use first row returned by database query instead of last row. [Chris Darroch] *) mod_ldap: Correctly return all requested attribute values when some attributes have a null value. PR 44560 [Anders Kaseorg ] *) core: check symlink ownership if both FollowSymlinks and SymlinksIfOwnerMatch are set [Nick Kew] *) core: fix origin checking in SymlinksIfOwnerMatch PR 36783 [Robert L Mathews ] *) Activate mod_cache, mod_file_cache and mod_disk_cache as part of the 'most' set for '--enable-modules' and '--enable-shared-mods'. Include mod_mem_cache in 'all' as well. [Dirk-Willem van Gulik] *) Also install mod_so.h, mod_rewrite.h and mod_cache.h; as these contain public function declarations which are useful for third party module authors. PR 42431 [Dirk-Willem van Gulik]. *) mod_dir, mod_negotiation: pass the output filter information to newly created sub requests; as these are later on used as true requests with an internal redirect. This allows for mod_cache et.al. to trap the results of the redirect. [Dirk-Willem van Gulik, Ruediger Pluem] *) mod_ldap: Add support (taking advantage of the new APR capability) for ldap rebind callback while chasing referrals. This allows direct searches on LDAP servers (in particular MS Active Directory 2003+) using referrals without the use of the global catalog. PRs 26538, 40268, and 42557 [Paul J. Reder] *) ApacheMonitor.exe: Introduce --kill argument for use by the installer. This will permit the installation tool to remove all running instances before attempting to remove the .exe. [William Rowe] *) mod_ssl: Add support for OCSP validation of client certificates. PR 41123. [Marc Stern , Joe Orton] *) mod_serf: New module for Reverse Proxying. [Paul Querna] *) core: Add the option to keep aside a request body up to a certain size that would otherwise be discarded, to be consumed by filters such as mod_include. When enabled for a directory, POST requests to shtml files can be passed through to embedded scripts as POST requests, rather being downgraded to GET requests. [Graham Leggett] *) mod_ssl: Fix TLS upgrade (RFC 2817) support. PR 41231. [Joe Orton] *) scoreboard: Correctly declare ap_time_process_request. PR 43789 [Tom Donovan ] *) core; scoreboard: ap_get_scoreboard_worker(sbh) now takes the sbh member from the connection rec, ap_get_scoreboard_worker(proc, thread) will now provide the unusual legacy lookup. [William Rowe] *) mpm winnt: fix null pointer dereference PR 42572 [Davi Arnaut] *) mod_authnz_ldap, mod_authn_dbd: Tidy up the code to expose authn parameters to the environment. Improve portability to EBCDIC machines by using apr_toupper(). [Martin Kraemer] *) mod_ldap, mod_authnz_ldap: Add support for nested groups (i.e. the ability to authorize an authenticated user via a "require ldap-group X" directive where the user is not in group X, but is in a subgroup contained in X. PR 42891 [Paul J. Reder] *) mod_ssl: Add support for caching SSL Sessions in memcached. [Paul Querna] *) apxs: Enhance -q flag to print all known variables and their values when invoked without variable name(s). [William Rowe, Sander Temme] *) apxs: Eliminate run-time check for mod_so. PR 40653. [David M. Lee ] *) beos MPM: Create pmain pool and run modules' child_init hooks when entering ap_mpm_run(), then destroy pmain when exiting ap_mpm_run(). [Chris Darroch] *) netware MPM: Destroy pmain pool when exiting ap_mpm_run() so that cleanups registered in modules' child_init hooks are performed. [Chris Darroch] *) Fix issue which could cause error messages to be written to access logs on Win32. PR 40476. [Tom Donovan ] *) The LockFile directive, which specifies the location of the accept() mutex lockfile, is deprecated. Instead, the AcceptMutex directive now takes an optional lockfile location parameter, ala SSLMutex. [Jim Jagielski] *) mod_authn_dbd: Export any additional columns queried in the SQL select into the environment with the name AUTHENTICATE_. This brings mod_authn_dbd behaviour in line with mod_authnz_ldap. [Graham Leggett] *) mod_dbd: Key the storage of prepared statements on the hex string value of server_rec, rather than the server name, as the server name may change (eg when the server name is set) at any time, causing weird behaviour in modules dependent on mod_dbd. [Graham Leggett] *) mod_proxy_fcgi: Added win32 build. [Mladen Turk] *) sendfile_nonblocking() takes the _brigade_ as an argument, gets the first bucket from the brigade, finds it not to be a FILE bucket and barfs. The fix is to pass a bucket rather than a brigade. [Niklas Edmundsson ] *) mod_rewrite: support rewritemap by SQL query [Nick Kew] *) ap_get_server_version() has been removed. Third-party modules must now use ap_get_server_banner() or ap_get_server_description(). [Jeff Trawick] *) All MPMs: Introduce a check_config phase between pre_config and open_logs, to allow modules to review interdependent configuration directive values and adjust them while messages can still be logged to the console. Handle relevant MPM directives during this phase and format messages for both the console and the error log, as appropriate. [Chris Darroch] *) core: Do not allow internal redirects like the DirectoryIndex of mod_dir to circumvent the symbolic link checks imposed by FollowSymLinks and SymLinksIfOwnerMatch. [Nick Kew, Ruediger Pluem, William Rowe] *) New SSLLogLevelDebugDump [ None (default) | IO (not bytes) | Bytes ] configures the I/O Dump of SSL traffic, when LogLevel is set to Debug. The default is none as this is far greater debugging resolution than the typical administrator is prepared to untangle. [William Rowe] *) mod_disk_cache: If possible, check if the size of an object to cache is within the configured boundaries before actually saving data. [Niklas Edmundsson ] *) Worker and event MPMs: Remove improper scoreboard updates which were performed in the event of a fork() failure. [Chris Darroch] *) Add support for fcgi:// proxies to mod_rewrite. [Markus Schiegl ] *) Remove incorrect comments from scoreboard.h regarding conditional loading of worker_score structure with mod_status, and remove unused definitions relating to old life_status field. [Chris Darroch ] *) Remove allocation of memory for unused array of lb_score pointers in ap_init_scoreboard(). [Chris Darroch ] *) Add mod_proxy_fcgi, a FastCGI back end for mod_proxy. [Garrett Rooney, Jim Jagielski, Paul Querna] *) Event MPM: Fill in the scoreboard's tid field. PR 38736. [Chris Darroch ] *) mod_charset_lite: Remove Content-Length when output filter can invalidate it. Warn when input filter can invalidate it. [Jeff Trawick] *) Authz: Add the new module mod_authn_core that will provide common authn directives such as 'AuthType', 'AuthName'. Move the directives 'AuthType' and 'AuthName' out of the core module and merge mod_authz_alias into mod_authn_core. [Brad Nicholes] *) Authz: Move the directives 'Order', 'Allow', 'Deny' and 'Satisfy' into the new module mod_access_compat which can be loaded to provide support for these directives. [Brad Nicholes] *) Authz: Move the 'Require' directive from the core module as well as add the directives '', '', '' and 'Reject' to mod_authz_core. The new directives introduce 'AND/OR' logic into the authorization processing. [Brad Nicholes] *) Authz: Add the new module mod_authz_core which acts as the authorization provider vector and contains common authz directives. [Brad Nicholes] *) Authz: Renamed mod_authz_dbm authz providers from 'group' and 'file-group' to 'dbm-group' and 'dbm-file-group'. [Brad Nicholes] *) Authz: Added the new authz providers 'env', 'ip', 'host', 'all' to handle host-based access control provided by mod_authz_host and invoked through the 'Require' directive. [Brad Nicholes] *) Authz: Convert all of the authz modules from hook based to provider based. [Brad Nicholes] *) mod_cache: Add CacheMinExpire directive to set the minimum time in seconds to cache a document. [Brian Akins , Ruediger Pluem] *) mod_authz_dbd: SQL authz with Login/Session support [Nick Kew] *) Fix typo in ProxyStatus syntax error message. [Christophe Jaillet ] *) Asynchronous write completion for the Event MPM. [Brian Pane] *) Added an End-Of-Request bucket type. The logging of a request and the freeing of its pool are now done when the EOR bucket is destroyed. This has the effect of delaying the logging until right after the last of the response is sent; ap_core_output_filter() calls the access logger indirectly when it destroys the EOR bucket. [Brian Pane] *) Rewrite of logresolve support utility: IPv6 addresses are now supported and the format of statistical output has changed. [Colm MacCarthaigh] *) Rewrite of ap_coreoutput_filter to do nonblocking writes [Brian Pane] *) Added new connection states for handler and write completion [Brian Pane] *) mod_cgid: Refuse to work on Solaris 10 due to OS bugs. PR 34264. [Justin Erenkrantz] *) Teach mod_ssl to use arbitrary OIDs in an SSLRequire directive, allowing string-valued client certificate attributes to be used for access control, as in: SSLRequire "value" in OID("1.3.6.1.4.1.18060.1") [Martin Kraemer, David Reid] [Apache 2.3.0-dev includes those bug fixes and changes with the Apache 2.2.xx tree as documented, and except as noted, below.] Changes with Apache 2.2.x and later: *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/CHANGES?view=markup Changes with Apache 2.0.x and later: *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.0.x/CHANGES?view=markup