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Diffstat (limited to 'CHANGES')
| -rw-r--r-- | CHANGES | 355 |
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@@ -1,6 +1,357 @@ -*- coding: utf-8 -*- +Changes with Apache 2.4.59 + + *) mod_deflate: Fixes and better logging for handling various + error and edge cases. [Eric Covener, Yann Ylavic, Joe Orton, + Eric Norris <enorris etsy.com>] + + *) Add CGIScriptTimeout to mod_cgi. [Eric Covener] + + *) mod_xml2enc: Tolerate libxml2 2.12.0 and later. PR 68610 + [ttachi <tachihara AT hotmail.com>] + + *) mod_slotmem_shm: Use ap_os_is_path_absolute() to make it portable. + [Jean-Frederic Clere] + + *) mod_ssl: Use OpenSSL-standard functions to assemble CA + name lists for SSLCACertificatePath/SSLCADNRequestPath. + Names will now be consistently sorted. PR 61574. + [Joe Orton] + + *) mod_xml2enc: Update check to accept any text/ media type + or any XML media type per RFC 7303, avoiding + corruption of Microsoft OOXML formats. PR 64339. + [Joseph Heenan <joseph.heenan fintechlabs.io>, Joe Orton] + + *) mod_http2: v2.0.26 with the following fixes: + - Fixed `Date` header on requests upgraded from HTTP/1.1 (h2c). Fixes + <https://github.com/icing/mod_h2/issues/272>. + - Fixed small memory leak in h2 header bucket free. Thanks to + Michael Kaufmann for finding this and providing the fix. + + *) htcacheclean: In -a/-A mode, list all files per subdirectory + rather than only one. PR 65091. + [Artem Egorenkov <aegorenkov.91 gmail.com>] + + *) mod_ssl: SSLProxyMachineCertificateFile/Path may reference files + which include CA certificates; those CA certs are treated as if + configured with SSLProxyMachineCertificateChainFile. [Joe Orton] + + *) htpasswd, htdbm, dbmmanage: Update help&docs to refer to + "hashing", rather than "encrypting" passwords. + [Michele Preziuso <mpreziuso kaosdynamics.com>] + + *) mod_ssl: Fix build with LibreSSL 2.0.7+. PR 64047. + [Giovanni Bechis, Yann Ylavic] + + *) htpasswd: Add support for passwords using SHA-2. [Joe Orton, + Yann Ylavic] + + *) core: Allow mod_env to override system environment vars. [Joe Orton] + + *) Allow mod_dav_fs to tolerate race conditions between PROPFIND and an + operation which removes a directory/file between apr_dir_read() and + apr_stat(). Current behaviour is to abort the connection which seems + inferior to tolerating (and logging) the error. [Joe Orton] + + *) mod_ldap: HTML-escape data in the ldap-status handler. + [Eric Covener, Chamal De Silva] + + *) mod_ssl: Disable the OpenSSL ENGINE API when OPENSSL_NO_ENGINE is set. + Allow for "SSLCryptoDevice builtin" if the ENGINE API is not available, + notably with OpenSSL >= 3. PR 68080. [Yann Ylavic, Joe Orton] + + *) mod_ssl: Improve compatibility with OpenSSL 3, fix build warnings about + deprecated ENGINE_ API, honor OPENSSL_API_COMPAT setting while defaulting + to compatibitily with version 1.1.1 (including ENGINEs / SSLCryptoDevice). + [Yann Ylavic] + + *) mod_ssl: release memory to the OS when needed. [Giovanni Bechis] + + *) mod_proxy: Ignore (and warn about) enablereuse=on for ProxyPassMatch when + some dollar substitution (backreference) happens in the hostname or port + part of the URL. [Yann Ylavic] + + *) mod_proxy: Allow to set a TTL for how long DNS resolutions to backend + systems are cached. [Yann Ylavic] + + *) mod_proxy: Add optional third argument for ProxyRemote, which + configures Basic authentication credentials to pass to the remote + proxy. PR 37355. [Joe Orton] + +Changes with Apache 2.4.58 + + *) SECURITY: CVE-2023-45802: Apache HTTP Server: HTTP/2 stream + memory not reclaimed right away on RST (cve.mitre.org) + When a HTTP/2 stream was reset (RST frame) by a client, there + was a time window were the request's memory resources were not + reclaimed immediately. Instead, de-allocation was deferred to + connection close. A client could send new requests and resets, + keeping the connection busy and open and causing the memory + footprint to keep on growing. On connection close, all resources + were reclaimed, but the process might run out of memory before + that. + This was found by the reporter during testing of CVE-2023-44487 + (HTTP/2 Rapid Reset Exploit) with their own test client. During + "normal" HTTP/2 use, the probability to hit this bug is very + low. The kept memory would not become noticeable before the + connection closes or times out. + Users are recommended to upgrade to version 2.4.58, which fixes + the issue. + Credits: Will Dormann of Vul Labs + + *) SECURITY: CVE-2023-43622: Apache HTTP Server: DoS in HTTP/2 with + initial windows size 0 (cve.mitre.org) + An attacker, opening a HTTP/2 connection with an initial window + size of 0, was able to block handling of that connection + indefinitely in Apache HTTP Server. This could be used to + exhaust worker resources in the server, similar to the well + known "slow loris" attack pattern. + This has been fixed in version 2.4.58, so that such connection + are terminated properly after the configured connection timeout. + This issue affects Apache HTTP Server: from 2.4.55 through + 2.4.57. + Users are recommended to upgrade to version 2.4.58, which fixes + the issue. + Credits: Prof. Sven Dietrich (City University of New York) + + *) SECURITY: CVE-2023-31122: mod_macro buffer over-read + (cve.mitre.org) + Out-of-bounds Read vulnerability in mod_macro of Apache HTTP + Server.This issue affects Apache HTTP Server: through 2.4.57. + Credits: David Shoon (github/davidshoon) + + *) mod_ssl: Silence info log message "SSL Library Error: error:0A000126: + SSL routines::unexpected eof while reading" when using + OpenSSL 3 by setting SSL_OP_IGNORE_UNEXPECTED_EOF if + available. [Rainer Jung] + + *) mod_http2: improved early cleanup of streams. + [Stefan Eissing] + + *) mod_proxy_http2: improved error handling on connection errors while + response is already underway. + [Stefan Eissing] + + *) mod_http2: fixed a bug that could lead to a crash in main connection + output handling. This occured only when the last request on a HTTP/2 + connection had been processed and the session decided to shut down. + This could lead to an attempt to send a final GOAWAY while the previous + write was still in progress. See PR 66646. + [Stefan Eissing] + + *) mod_proxy_http2: fix `X-Forward-Host` header to carry the correct value. + Fixes PR66752. + [Stefan Eissing] + + *) mod_http2: added support for bootstrapping WebSockets via HTTP/2, as + described in RFC 8441. A new directive 'H2WebSockets on|off' has been + added. The feature is by default not enabled. + As also discussed in the manual, this feature should work for setups + using "ProxyPass backend-url upgrade=websocket" without further changes. + Special server modules for WebSockets will have to be adapted, + most likely, as the handling if IO events is different with HTTP/2. + HTTP/2 WebSockets are supported on platforms with native pipes. This + excludes Windows. + [Stefan Eissing] + + *) mod_rewrite: Fix a regression with both a trailing ? and [QSA]. + in OCSP stapling. PR 66672. [Frank Meier <frank.meier ergon.ch>, covener] + + *) mod_http2: fixed a bug in flushing pending data on an already closed + connection that could lead to a busy loop, preventing the HTTP/2 session + to close down successfully. Fixed PR 66624. + [Stefan Eissing] + + *) mod_http2: v2.0.15 with the following fixes and improvements + - New directive 'H2EarlyHint name value' to add headers to a response, + picked up already when a "103 Early Hints" response is sent. 'name' and + 'value' must comply to the HTTP field restrictions. + This directive can be repeated several times and header fields of the + same names add. Sending a 'Link' header with 'preload' relation will + also cause a HTTP/2 PUSH if enabled and supported by the client. + - Fixed an issue where requests were not logged and accounted in a timely + fashion when the connection returns to "keepalive" handling, e.g. when + the request served was the last outstanding one. + This led to late appearance in access logs with wrong duration times + reported. + - Accurately report the bytes sent for a request in the '%O' Log format. + This addresses #203, a long outstanding issue where mod_h2 has reported + numbers over-eagerly from internal buffering and not what has actually + been placed on the connection. + The numbers are now the same with and without H2CopyFiles enabled. + [Stefan Eissing] + + *) mod_proxy_http2: fix retry handling to not leak temporary errors. + On detecting that that an existing connection was shutdown by the other + side, a 503 response leaked even though the request was retried on a + fresh connection. + [Stefan Eissing] + + *) mod_rewrite: Add server directory to include path as mod_rewrite requires + test_char.h. PR 66571 [Valeria Petrov <valeria.petrov@spinetix.com>] + + *) mod_http2: new directive `H2ProxyRequests on|off` to enable handling + of HTTP/2 requests in a forward proxy configuration. + General forward proxying is enabled via `ProxyRequests`. If the + HTTP/2 protocol is also enabled for such a server/host, this new + directive is needed in addition. + [Stefan Eissing] + + *) core: Updated conf/mime.types: + - .js moved from 'application/javascript' to 'text/javascript' + - .mjs was added as 'text/javascript' + - add .opus ('audio/ogg') + - add 'application/vnd.geogebra.slides' + - add WebAssembly MIME types and extension + [Mathias Bynens <@mathiasbynens> via PR 318, + Richard de Boer <richard tubul.net>, Dave Hodder <dmh dmh.org.uk>, + Zbynek Konecny <zbynek1729 gmail.com>] + + *) mod_proxy_http2: fixed using the wrong "bucket_alloc" from the backend + connection when sending data on the frontend one. This caused crashes + or infinite loops in rare situations. + *) mod_proxy_http2: fixed a bug in retry/response handling that could lead + to wrong status codes or HTTP messages send at the end of response bodies + exceeding the announced content-length. + *) mod_proxy_http2: fix retry handling to not leak temporary errors. + On detecting that that an existing connection was shutdown by the other + side, a 503 response leaked even though the request was retried on a + fresh connection. + *) mod_http2: fixed a bug that did cleanup of consumed and pending buckets in + the wrong order when a bucket_beam was destroyed. + [Stefan Eissing] + + *) mod_http2: avoid double chunked-encoding on internal redirects. + PR 66597 [Yann Ylavic, Stefan Eissing] + + *) mod_http2: Fix reporting of `Total Accesses` in server-status to not count + HTTP/2 requests twice. Fixes PR 66801. + [Stefan Eissing] + + *) mod_ssl: Fix handling of Certificate Revoked messages + in OCSP stapling. PR 66626. [<gmoniker gmail.com>] + + *) mod_http2: fixed a bug in handling of stream timeouts. + [Stefan Eissing] + + *) mod_tls: updating to rustls-ffi version 0.9.2 or higher. + Checking in configure for proper version installed. Code + fixes for changed clienthello member name. + [Stefan Eissing] + + *) mod_md: + - New directive `MDMatchNames all|servernames` to allow more control over how + MDomains are matched to VirtualHosts. + - New directive `MDChallengeDns01Version`. Setting this to `2` will provide + the command also with the challenge value on `teardown` invocation. In version + 1, the default, only the `setup` invocation gets this parameter. + Refs #312. Thanks to @domrim for the idea. + - For Managed Domain in "manual" mode, the checks if all used ServerName and + ServerAlias are part of the MDomain now reports a warning instead of an error + (AH10040) when not all names are present. + - MDChallengeDns01 can now be configured for individual domains. + Using PR from Jérôme Billiras (@bilhackmac) and adding test case and fixing proper working + - Fixed a bug found by Jérôme Billiras (@bilhackmac) that caused the challenge + teardown not being invoked as it should. + + *) mod_ldap: Avoid performance overhead of APR-util rebind cache for + OpenLDAP 2.2+. PR 64414. [Joe Orton] + + *) mod_http2: new directive 'H2MaxDataFrameLen n' to limit the maximum + amount of response body bytes put into a single HTTP/2 DATA frame. + Setting this to 0 places no limit (but the max size allowed by the + protocol is observed). + The module, by default, tries to use the maximum size possible, which is + somewhat around 16KB. This sets the maximum. When less response data is + available, smaller frames will be sent. + + *) mod_md: fixed passing of the server environment variables to programs + started via MDMessageCmd and MDChallengeDns01 on *nix system. + See <https://github.com/icing/mod_md/issues/319>. + [Stefan Eissing] + + *) mod_dav: Add DavBasePath directive to configure the repository root + path. PR 35077. [Joe Orton] + + *) mod_alias: Add AliasPreservePath directive to map the full + path after the alias in a location. [Graham Leggett] + + *) mod_alias: Add RedirectRelative to allow relative redirect targets to be + issued as-is. [Eric Covener, Graham Leggett] + + *) core: Add formats %{z} and %{strftime-format} to ErrorLogFormat, and make + sure that if the format is configured early enough it applies to every log + line. PR 62161. [Yann Ylavic] + + *) mod_deflate: Add DeflateAlterETag to control how the ETag + is modified. The 'NoChange' parameter mimics 2.2.x behavior. + PR 45023, PR 39727. [Eric Covener] + + *) core: Optimize send_brigade_nonblocking(). [Yann Ylavic, Christophe Jaillet] + + *) mod_status: Remove duplicate keys "BusyWorkers" and "IdleWorkers". + Resolve inconsistency between the previous two occurrences by + counting workers in state SERVER_GRACEFUL no longer as busy, + but instead in a new counter "GracefulWorkers" (or on HTML + view as "workers gracefully restarting"). Also add the graceful + counter as a new column to the existing HTML per process table + for async MPMs. PR 63300. [Rainer Jung] + +Changes with Apache 2.4.57 + + *) mod_proxy: Check before forwarding that a nocanon path has not been + rewritten with spaces during processing. [Yann Ylavic] + + *) mod_proxy: In case that AllowEncodedSlashes is set to NoDecode do not + double encode encoded slashes in the URL sent by the reverse proxy to the + backend. [Ruediger Pluem] + + *) mod_http2: fixed a crash during connection termination. See PR 66539. + [Stefan Eissing] + + *) mod_rewrite: Fix a 2.4.56 regression for substitutions ending + in a question mark. PR66547. [Eric Covener] + + *) mod_rewrite: Add "BCTLS" and "BNE" RewriteRule flags. Re-allow encoded + characters on redirections without the "NE" flag. + [Yann Ylavic, Eric Covener] + + *) mod_proxy: Fix double encoding of the uri-path of the request forwarded + to the origin server, when using mapping=encoded|servlet. [Yann Ylavic] + + *) mod_mime: Do not match the extention against possible query string + parameters in case ProxyPass was used with the nocanon option. + [Ruediger Pluem] + Changes with Apache 2.4.56 + *) SECURITY: CVE-2023-27522: Apache HTTP Server: mod_proxy_uwsgi + HTTP response splitting (cve.mitre.org) + HTTP Response Smuggling vulnerability in Apache HTTP Server via + mod_proxy_uwsgi. This issue affects Apache HTTP Server: from + 2.4.30 through 2.4.55. + Special characters in the origin response header can + truncate/split the response forwarded to the client. + Credits: Dimas Fariski Setyawan Putra (nyxsorcerer) + + *) SECURITY: CVE-2023-25690: HTTP request splitting with + mod_rewrite and mod_proxy (cve.mitre.org) + Some mod_proxy configurations on Apache HTTP Server versions + 2.4.0 through 2.4.55 allow a HTTP Request Smuggling attack. + Configurations are affected when mod_proxy is enabled along with + some form of RewriteRule or ProxyPassMatch in which a non-specific + pattern matches some portion of the user-supplied request-target (URL) + data and is then re-inserted into the proxied request-target + using variable substitution. For example, something like: + RewriteEngine on + RewriteRule "^/here/(.*)" "http://example.com:8080/elsewhere?$1"; [P] + ProxyPassReverse /here/ http://example.com:8080/ + Request splitting/smuggling could result in bypass of access + controls in the proxy server, proxying unintended URLs to + existing origin servers, and cache poisoning. + Credits: Lars Krapf of Adobe + *) rotatelogs: Add -T flag to allow subsequent rotated logfiles to be truncated without the initial logfile being truncated. [Eric Covener] @@ -112,6 +463,7 @@ Changes with Apache 2.4.55 The checks for this in nghttp2 v1.50.0+ are disabled. - Extensive testing in production done by Alessandro Bianchi (@alexskynet) on the v2.0.x versions for stability. Many thanks! + *) mod_proxy_http2: fixed #235 by no longer forwarding 'Host:' header when request ':authority' is known. Improved test case that did not catch that the previous 'fix' was incorrect. @@ -319,6 +671,9 @@ Changes with Apache 2.4.54 domain names in the *.ts.net space. [Stefan Eissing] + *) core: Change default value of LimitRequestBody from 0 (unlimited) + to 1GB. [Eric Covener] + Changes with Apache 2.4.53 *) SECURITY: CVE-2022-23943: mod_sed: Read/write beyond bounds |