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-*- coding: utf-8 -*-
Changes with Apache 2.2.25
*) SECURITY: CVE-2013-1862 (cve.mitre.org)
mod_rewrite: Ensure that client data written to the RewriteLog is
escaped to prevent terminal escape sequences from entering the
log file. [Eric Covener, Jeff Trawick, Joe Orton]
*) core: Limit ap_pregsub() to 64MB and add ap_pregsub_ex() for longer
strings. The default limit for ap_pregsub() can be adjusted at compile
time by defining AP_PREGSUB_MAXLEN. [Stefan Fritsch, Jeff Trawick]
*) core: Support the SINGLE_LISTEN_UNSERIALIZED_ACCEPT optimization
on Linux kernel versions 3.x and above. PR 55121. [Bradley Heilbrun
<apache heilbrun.org>]
*) mod_setenvif: Log error on substitution overflow.
[Stefan Fritsch]
*) mod_ssl/proxy: enable the SNI extension for backend TLS connections
[Kaspar Brand]
*) mod_proxy: Use the the same hostname for SNI as for the HTTP request when
forwarding to SSL backends. PR 53134.
[Michael Weiser <michael weiser.dinsnail.net>, Ruediger Pluem]
*) mod_ssl: Quiet FIPS mode weak keys disabled and FIPS not selected emits
in the error log to debug level. [William Rowe]
*) mod_ssl: Catch missing, mismatched or encrypted client cert/key pairs
with SSLProxyMachineCertificateFile/Path directives. PR 52212, PR 54698.
[Keith Burdis <keith burdis.org>, Joe Orton, Kaspar Brand]
*) mod_proxy_balancer: Added balancer parameter failontimeout to allow server
admin to configure an IO timeout as an error in the balancer.
[Daniel Ruggeri]
*) mod_authnz_ldap: Allow using exec: calls to obtain LDAP bind
password. [Daniel Ruggeri]
*) htdigest: Fix buffer overflow when reading digest password file
with very long lines. PR 54893. [Rainer Jung]
*) 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
<ben reser.org>]
*) mod_dav: Ensure URI is correctly uriencoded on return. PR 54611
[Timothy Wood <tjw omnigroup.com>]
*) mod_dav: Make sure that when we prepare an If URL for Etag comparison,
we compare unencoded paths. PR 53910 [Timothy Wood <tjw omnigroup.com>]
*) 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 <tjw omnigroup.com>]
*) 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
<diego.santaCruz spinetix.com>]
*) mod_dav: Do not fail PROPPATCH when prop namespace is not known.
PR 52559 [Diego Santa Cruz <diego.santaCruz spinetix.com>]
*) mod_dav: Do not segfault on PROPFIND with a zero length DBM.
PR 52559 [Diego Santa Cruz <diego.santaCruz spinetix.com>]
Changes with Apache 2.2.24
*) 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 <heinenn google com>]
*) SECURITY: CVE-2012-4558 (cve.mitre.org)
XSS in mod_proxy_balancer manager interface. [Jim Jagielski,
Niels Heinen <heinenn google com>]
*) mod_rewrite: Stop merging RewriteBase down to subdirectories
unless new option 'RewriteOptions MergeBase' is configured.
Merging RewriteBase was unconditionally turned on in 2.2.23.
PR 53963. [Eric Covener]
*) 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]
*) mod_ssl: log revoked certificates at level INFO
instead of DEBUG. PR 52162. [Stefan Fritsch]
*) mod_proxy_ajp: Support unknown HTTP methods. PR 54416.
[Rainer Jung]
*) mod_dir: Add support for the value 'disabled' in FallbackResource.
[Vincent Deffontaines]
*) mod_ldap: Fix regression in handling "server unavailable" errors on
Windows. PR 54140. [Eric Covener]
*) mod_ssl: fix a regression with the string rendering of the "UID" RDN
introduced in 2.2.15. PR 54510. [Kaspar Brand]
*) 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 <nico emutex com>, Kaspar Brand]
*) 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.
Currently the disk and memory cache providers do not cache 206 Partial
Responses. [Graham Leggett]
*) core: Remove unintentional APR 1.3 dependency introduced with
Apache 2.2.22. [Eric Covener]
*) core: Use a TLS 1.0 close_notify alert for internal dummy connection if
the chosen listener is configured for https. [Joe Orton]
*) mod_ssl: Add new directive SSLCompression to disable TLS-level
compression. PR 53219. [Björn Jacke <bjoern j3e de>, Stefan Fritsch]
Changes with Apache 2.2.23
*) 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]
*) 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 <heinenn google.com>]
*) htdbm, htpasswd: Don't crash if crypt() fails (e.g. with FIPS enabled).
[Paul Wouters <pwouters redhat.com>, Joe Orton]
*) mod_ldap: Treat the "server unavailable" condition as a transient
error with all LDAP SDKs. [Filip Valder <filip.valder vsb.cz>]
*) core: Add filesystem paths to access denied / access failed messages.
[Eric Covener]
*) core: Fix error handling in ap_scan_script_header_err_brigade() if there
is no EOS bucket in the brigade. PR 48272. [Stefan Fritsch]
*) core: Prevent "httpd -k restart" from killing server in presence of
config error. [Joe Orton]
*) mod_ssl: when compiled against OpenSSL 1.0.1 or later, allow explicit
control of TLSv1.1 and TLSv1.2 through the SSLProtocol directive,
adding TLSv1.1 and TLSv1.2 support by default given 'SSLProtocol All'.
[Kaspar Brand, William Rowe]
*) mod_log_config: Fix %{abc}C truncating cookie values at first "=".
PR 53104. [Greg Ames]
*) Unix MPMs: Fix small memory leak in parent process if connect()
failed when waking up children. [Joe Orton]
*) mod_proxy_ajp: Add support for 'ProxyErrorOverride on'. PR 50945.
[Peter Pramberger <peter pramberger.at>, Jim Jagielski]
*) Added SSLProxyMachineCertificateChainFile directive so the proxy client
can select the proper client certificate when using a chain and the
remote server only lists the root CA as allowed.
*) mpm_event, mpm_worker: Remain active amidst prevalent child process
resource shortages. [Jeff Trawick]
*) mod_rewrite: Add "AllowAnyURI" option. PR 52774. [Joe Orton]
*) 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]
*) mod_proxy_balancer: Restore balancing after a failed worker has
recovered when using lbmethod_bybusyness. PR 48735. [Jeff Trawick]
*) mod_dumpio: Properly handle errors from subsequent input filters.
PR 52914. [Stefan Fritsch]
*) 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: Adjust ap_scan_script_header_err*() to prevent mod_cgi and mod_cgid
from logging bogus data in case of errors. [Stefan Fritsch]
*) mod_disk_cache, mod_mem_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. PR 49113. [Graham Leggett]
*) configure: Fix usage with external apr and apu in non-default paths
and recent gcc versions >= 4.6. [Jean-Frederic Clere]
*) core: Fix building against PCRE 8.30 by switching from the obsolete
pcre_info() to pcre_fullinfo(). PR 52623 [Ruediger Pluem, Rainer Jung]
*) mod_proxy: Add the forcerecovery balancer parameter that determines if
recovery for balancer workers is enforced. [Ruediger Pluem]
Changes with Apache 2.2.22
*) 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]
*) SECURITY: CVE-2011-3607 (cve.mitre.org)
Fix integer overflow in ap_pregsub() which, when the mod_setenvif module
is enabled, could allow local users to gain privileges via a .htaccess
file. [Stefan Fritsch, Greg Ames]
*) 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]
*) 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. PR 52256.
[Rainer Canavan <rainer-apache 7val com>]
*) 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]
*) 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]
*) SECURITY: CVE-2012-4557 (cve.mitre.org)
mod_proxy_ajp: Try to prevent a single long request from marking a worker
in error. [Jean-Frederic Clere]
*) config: Update the default mod_ssl configuration: Disable SSLv2, only
allow >= 128bit ciphers, add commented example for speed optimized cipher
list, limit MSIE workaround to MSIE <= 5. [Kaspar Brand]
*) core: Fix segfault in ap_send_interim_response(). PR 52315.
[Stefan Fritsch]
*) mod_log_config: Prevent segfault. PR 50861. [Torsten F�rtsch
<torsten.foertsch gmx.net>]
*) mod_win32: Invert logic for env var UTF-8 fixing.
Now we exclude a list of vars which we know for sure they dont hold UTF-8
chars; all other vars will be fixed. This has the benefit that now also
all vars from 3rd-party modules will be fixed. PR 13029 / 34985.
[Guenter Knauf]
*) core: Fix hook sorting for Perl modules, a regression introduced in
2.2.21. PR: 45076. [Torsten Foertsch <torsten foertsch gmx net>]
*) Fix a regression introduced by the CVE-2011-3192 byterange fix in 2.2.20:
A range of '0-' will now return 206 instead of 200. PR 51878.
[Jim Jagielski]
*) Example configuration: Fix entry for MaxRanges (use "unlimited" instead
of "0"). [Rainer Jung]
*) mod_substitute: Fix buffer overrun. [Ruediger Pluem, Rainer Jung]
Changes with Apache 2.2.21
*) SECURITY: CVE-2011-3348 (cve.mitre.org)
mod_proxy_ajp: Respond with HTTP_NOT_IMPLEMENTED when the method is not
recognized. [Jean-Frederic Clere]
*) Fix a regression introduced by the CVE-2011-3192 byterange fix in 2.2.20.
PR 51748. [<lowprio20 gmail.com>]
*) 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]
*) mod_proxy_ajp: Ignore flushing if headers have not been sent.
PR 51608 [Ruediger Pluem]
*) mod_dav_fs: Fix segfault if apr DBM driver cannot be loaded. PR 51751.
[Stefan Fritsch]
*) mod_alias: Adjust log severity of "incomplete redirection target"
message. PR 44020.
*) 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 <info noordhuis nl>]
*) core: Allow MaxRanges none|unlimited|default and set 'Accept-Ranges: none'
in the case Ranges are being ignored with MaxRanges none.
[Eric Covener]
*) mod_proxy_ajp: Respect "reuse" flag in END_REPONSE packets.
[Rainer Jung]
Changes with Apache 2.2.20
*) 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]
*) mod_authnz_ldap: If the LDAP server returns constraint violation,
don't treat this as an error but as "auth denied". [Stefan Fritsch]
*) mod_filter: Fix FilterProvider conditions of type "resp=" (response
headers) for CGI. [Joe Orton, Rainer Jung]
*) 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: Do the hook sorting earlier so that the hooks are properly sorted
for the pre_config hook and during parsing the config. [Stefan Fritsch]
Changes with Apache 2.2.19
*) Revert ABI breakage in 2.2.18 caused by the function signature change
of ap_unescape_url_keep2f(). This release restores the signature from
2.2.17 and prior, and introduces ap_unescape_url_keep2f_ex().
[Eric Covener]
Changes with Apache 2.2.18
*) Log an error for failures to read a chunk-size, and return 408 instead
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
*) core: Only log a 408 if it is no keepalive timeout. PR 39785
[Ruediger Pluem, Mark Montague <markmont umich.edu>]
*) 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 <nobutaka nobutaka.org>, Stefan Fritsch,
Dan Poirier]
*) 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]
*) htpasswd: Change the default algorithm for htpasswd to MD5 on all
platforms. Crypt with its 8 character limit is not useful anymore;
improve out of disk space handling (PR 30877); print a warning if
a password is truncated by crypt. [Stefan Fritsch]
*) 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]
*) configure: Fix htpasswd/htdbm libcrypt link errors with some newer
linkers. [Stefan Fritsch]
*) MinGW build improvements. PR 49535. [John Vandenberg
<jayvdb gmail.com>, Jeff Trawick]
*) mod_ssl, ab: Support OpenSSL compiled without SSLv2 support.
[Stefan Fritsch]
*) core: AllowEncodedSlashes new option NoDecode to allow encoded slashes
in request URL path info but not decode them. PR 35256,
PR 46830. [Dan Poirier]
*) mod_rewrite: Allow to unset environment variables. PR 50746.
[Rainer Jung]
*) 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). [Jeff Trawick]
*) mod_proxy: Put the worker in error state if the SSL handshake with the
backend fails. PR 50332.
[Daniel Ruggeri <DRuggeri primary.net>, Ruediger Pluem]
*) prefork: Update MPM state in children during a graceful restart.
Allow the HTTP connection handling loop to terminate early
during a graceful restart. PR 41743.
[Andrew Punch <andrew.punch 247realmedia.com>]
*) mod_ssl: Correctly read full lines in input filter when the line is
incomplete during first read. PR 50481. [Ruediger Pluem]
*) mod_autoindex: Merge IndexOptions from server to directory context when
the directory has no mod_autoindex directives. PR 47766. [Eric Covener]
*) 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_dav: Send 400 error if malformed Content-Range header is received for
a put request (RFC 2616 14.16). PR 49825. [Stefan Fritsch]
*) mod_userdir: Add merging of enable, disable, and filename arguments
to UserDir directive, leaving enable/disable of userlists unmerged.
PR 44076 [Eric Covener]
*) core: Honor 'AcceptPathInfo OFF' during internal redirects,
such as per-directory mod_rewrite substitutions. PR 50349.
[Eric Covener]
*) 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_mem_cache: Add a debug msg when a streaming response exceeds
MCacheMaxStreamingBuffer, since mod_cache will follow up with a scary
'memory allocation failed' debug message. PR 49604. [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]
Changes with Apache 2.2.17
*) prefork MPM: Run cleanups for final request when process exits gracefully
to work around a flaw in apr-util. PR 43857. [Tom Donovan]
*) mod_reqtimeout: Do not wrongly enforce timeouts for mod_proxy's backend
connections and other protocol handlers (like mod_ftp). Enforce the
timeout for AP_MODE_GETLINE. If there is a timeout, shorten the lingering
close time from 30 to 2 seconds. [Stefan Fritsch]
*) Proxy balancer: support setting error status according to HTTP response
code from a backend. PR 48939. [Daniel Ruggeri <DRuggeri primary.net>]
*) mod_authnz_ldap: If AuthLDAPCharsetConfig is set, also convert the
password to UTF-8. PR 45318.
[Johannes Müller <joh_m gmx.de>, Stefan Fritsch]
*) core: check symlink ownership if both FollowSymlinks and
SymlinksIfOwnerMatch are set [Nick Kew]
*) core: fix origin checking in SymlinksIfOwnerMatch
PR 36783 [Robert L Mathews <rob-apache.org.bugs tigertech.net>]
*) mod_headers: Enable multi-match-and-replace edit option
PR 46594 [Nick Kew]
*) mod_log_config: Make ${cookie}C correctly match whole cookie names
instead of substrings. PR 28037. [Dan Franklin <dan dan-franklin.com>,
Stefan Fritsch]
*) 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.
PR 17629, 43939
[Dirk-Willem van Gulik, Jim Jagielski, Joe Orton, Ruediger Pluem]
*) rotatelogs: Fix possible buffer overflow if admin configures a
mongo log file path. [Jeff Trawick]
*) mod_ssl: Do not do overlapping memcpy. PR 45444 [Joe Orton]
*) vhost: A purely-numeric Host: header should not be treated as a port.
PR 44979 [Nick Kew]
*) core: (re)-introduce -T commandline option to suppress documentroot
check at startup.
PR 41887 [Jan van den Berg <janvdberg gmail.com>]
Changes with Apache 2.2.16
*) SECURITY: CVE-2010-1452 (cve.mitre.org)
mod_dav, mod_cache: Fix Handling of requests without a path segment.
PR: 49246 [Mark Drayton, Jeff Trawick]
*) SECURITY: CVE-2010-2068 (cve.mitre.org)
mod_proxy_ajp, mod_proxy_http, mod_reqtimeout: Fix timeout detection
for platforms Windows, Netware and OS2. PR: 49417. [Rainer Jung]
*) 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]
*) mod_filter: enable it to act on non-200 responses.
PR 48377 [Nick Kew]
*) 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_ssl: Fix segfault at startup if proxy client certs are shared
across multiple vhosts. PR 39915. [Joe Orton]
*) mod_proxy_http: Log the port of the remote server in various messages.
PR 48812. [Igor Galić <i galic brainsware org>]
*) apxs: Fix -A and -a options to ignore whitespace in httpd.conf
[Philip M. Gollucci]
*) 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_rewrite: Allow to set environment variables without explicitly
giving a value. [Rainer Jung]
Changes with Apache 2.2.15
*) 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
for OpenSSL versions prior to 0.9.8l; reject 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 or later.
[Joe Orton, Ruediger Pluem, Hartmut Keil <Hartmut.Keil adnovum.ch>]
*) 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 <niku.toivola sulake.com>]
*) 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 <brettg senseofsecurity.com>, Jeff Trawick]
*) 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]
*) mod_reqtimeout: New module to set timeouts and minimum data rates for
receiving requests from the client. [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_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 <apache jth.net>]
*) 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_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]
*) mod_log_config: Add the R option to log the handler used within the
request. [Christian Folini <christian.folini netnea com>]
*) 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]
*) 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: Fix potential memory leaks by making sure to not destroy
bucket brigades that have been created by earlier filters.
[Stefan Fritsch]
*) 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]
*) mod_proxy, mod_proxy_http: Support remote https proxies
by using HTTP CONNECT.
PR 19188. [Philippe Dutrueux <lilas evidian.com>, Rainer Jung]
*) 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_ssl: When extracting certificate subject/issuer names to the
SSL_*_DN_* variables, handle RDNs with duplicate tags by
exporting multiple varialables with an "_n" integer suffix.
PR 45875. [Joe Orton, Peter Sylvester <peter.sylvester edelweb.fr>]
*) 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]
*) core: Preserve Port information over internal redirects
PR 35999. [Jonas Ringh <jonas.ringh cixit.se>]
*) mod_filter: fix FilterProvider matching where "dispatch" string
doesn't exist.
PR 48054. [<tietew gmail.com>]
*) Build: fix --with-module to work as documented
PR 43881. [Gez Saunders <gez.saunders virgin.net>]
*) mod_mime: Make RemoveType override the info from TypesConfig.
PR 38330. [Stefan Fritsch]
*) mod_proxy: unable to connect to a backend is SERVICE_UNAVAILABLE,
rather than BAD_GATEWAY or (especially) NOT_FOUND.
PR 46971. [Evan Champion <evanc nortel.com>]
*) mod_charset_lite: Honor 'CharsetOptions NoImplicitAdd'.
[Eric Covener]
*) 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_disk_cache, mod_mem_cache: don't cache incomplete responses,
per RFC 2616, 13.8. PR15866. [Dan Poirier]
*) mod_rewrite: Make sure that a hostname:port isn't fully qualified if
the request is a CONNECT request. PR 47928.
[Bill Zajac <billz consultla.com>]
*) mod_cache: correctly consider s-maxage in cacheability
decisions. [Dan Poirier]
*) core: Return APR_EOF if request body is shorter than the length announced
by the client. PR 33098. [Stefan Fritsch]
*) mod_rewrite: Add scgi scheme detection. [André Malo]
*) mod_mime: Detect invalid use of MultiviewsMatch inside Location and
LocationMatch sections. PR 47754. [Dan Poirier]
*) ab, mod_ssl: Restore compatibility with OpenSSL < 0.9.7g.
[Guenter Knauf]
Changes with Apache 2.2.14
*) SECURITY: CVE-2009-2699 (cve.mitre.org)
Fixed in APR 1.3.9. Faulty error handling in the Solaris pollset support
(Event Port backend) which could trigger hangs in the prefork and event
MPMs on that platform. PR 47645. [Jeff Trawick]
*) SECURITY: CVE-2009-3095 (cve.mitre.org)
mod_proxy_ftp: sanity check authn credentials.
[Stefan Fritsch <sf fritsch.de>, Joe Orton]
*) SECURITY: CVE-2009-3094 (cve.mitre.org)
mod_proxy_ftp: NULL pointer dereference on error paths.
[Stefan Fritsch <sf fritsch.de>, Joe Orton]
*) mod_proxy_scgi: Backport from trunk. [André Malo]
*) mod_ldap: Don't try to resolve file-based user ids to a DN when AuthLDAPURL
has been defined at a very high level. PR 45946. [Eric Covener]
*) htcacheclean: 19 ways to fail, 1 error message. Fixed. [Graham Leggett]
*) mod_ldap: Bring the LDAPCacheEntries and LDAPOpCacheEntries
usage() in synch with the manual and the implementation (0 and -1
both disable the cache). [Eric Covener]
*) 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]
*) htdbm: Fix possible buffer overflow if dbm database has very
long values. PR 30586 [Dan Poirier]
*) Add support for HTTP PUT to ab. [Jeff Barnes <jbarnesweb yahoo.com>]
*) mod_ssl: Fix SSL_*_DN_UID variables to use the 'userID' attribute
type. PR 45107. [Michael Ströder <michael stroeder.com>,
Peter Sylvester <peter.sylvester edelweb.fr>]
*) mod_cache: Add CacheIgnoreURLSessionIdentifiers directive to ignore
defined session identifiers encoded in the URL when caching.
[Ruediger Pluem]
*) mod_mem_cache: fix seg fault under load due to pool concurrency problem
PR: 47672 [Dan Poirier <poirier pobox.com>]
*) mod_autoindex: Correctly create an empty cell if the description
for a file is missing. PR 47682 [Peter Poeml <poeml suse.de>]
Changes with Apache 2.2.13
*) SECURITY: CVE-2009-2412 (cve.mitre.org)
Distributed with APR 1.3.8 and APR-util 1.3.9 to fix potential overflow
in pools and rmm, where size alignment was taking place.
[Matt Lewis <mattlewis@google.com>, Sander Striker]
*) mod_ssl, ab: improve compatibility with OpenSSL 1.0.0 betas. Report
warnings compiling mod_ssl against OpenSSL to the httpd developers.
[Guenter Knauf]
*) mod_cgid: Do not add an empty argument when calling the CGI script.
PR 46380 [Ruediger Pluem]
*) Fix potential segfaults with use of the legacy ap_rputs() etc
interfaces, in cases where an output filter fails. PR 36780.
[Joe Orton]
Changes with Apache 2.2.12
*) SECURITY: CVE-2009-1891 (cve.mitre.org)
Fix a potential Denial-of-Service attack against mod_deflate or other
modules, by forcing the server to consume CPU time in compressing a
large file after a client disconnects. PR 39605.
[Joe Orton, Ruediger Pluem]
*) SECURITY: CVE-2009-1195 (cve.mitre.org)
Prevent the "Includes" Option from being enabled in an .htaccess
file if the AllowOverride restrictions do not permit it.
[Jonathan Peatfield <j.s.peatfield damtp.cam.ac.uk>, Joe Orton,
Ruediger Pluem, 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]
*) SECURITY: CVE-2009-0023, CVE-2009-1955, CVE-2009-1956 (cve.mitre.org)
The bundled copy of the APR-util library has been updated, fixing three
different security issues which may affect particular configurations
and third-party modules.
*) mod_headers: Make 'Header set Content-Type' effective on responses
that already have a Content-Type. [Issac Goldstand]
*) mod_include: fix potential segfault when handling back references
on an empty SSI variable. [Ruediger Pluem, Lars Eilebrecht, Nick Kew]
*) mod_alias: check sanity in Redirect arguments.
PR 44729 [Sönke Tesch <st kino-fahrplan.de>, Jim Jagielski]
*) mod_proxy_http: fix Host: header for literal IPv6 addresses.
PR 47177 [Carlos Garcia Braschi <cgbraschi gmail.com>]
*) mod_rewrite: Remove locking for writing to the rewritelog.
PR 46942
*) mod_alias: Ensure Redirect emits HTTP-compliant URLs.
PR 44020
*) mod_proxy_http: fix case sensitivity checking transfer encoding
PR 47383 [Ryuzo Yamamoto <ryuzo.yamamoto gmail.com>]
*) 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 <m_vitaly topixoft.com>]
*) mod_proxy: Complete ProxyPassReverse to handle balancer URL's. Given;
BalancerMember balancer://alias http://example.com/foo
ProxyPassReverse /bash balancer://alias/bar
backend url http://example.com/foo/bar/that is now translated /bash/that
[William Rowe]
*) New piped log syntax: Use "||process args" to launch the given process
without invoking the shell/command interpreter. Use "|$command line"
(the default behavior of "|command line" in 2.2) to invoke using shell,
consuming an additional shell process for the lifetime of the logging
pipe program but granting additional process invocation flexibility.
[William Rowe]
*) mod_ssl: Add server name indication support (RFC 4366) and better
support for name based virtual hosts with SSL. PR 34607
[Peter Sylvester <peter.sylvester edelweb.fr>,
Kaspar Brand <asfbugz velox.ch>, Guenter Knauf, Joe Orton,
Ruediger Pluem]
*) mod_negotiation: Escape pathes of filenames in 406 responses to avoid
HTML injections and HTTP response splitting. PR 46837.
[Geoff Keating <geoffk apple.com>]
*) mod_include: Prevent a case of SSI timefmt-smashing with filter chains
including multiple INCLUDES filters. PR 39369 [Joe Orton]
*) mod_rewrite: When evaluating a proxy rule in directory context, do
escape the filename by default. PR 46428 [Joe Orton]
*) mod_proxy_ajp: Check more strictly that the backend follows the AJP
protocol. [Mladen Turk]
*) mod_ssl: Add SSLProxyCheckPeerExpire and SSLProxyCheckPeerCN directives
to enable stricter checking of remote server certificates.
[Ruediger Pluem]
*) mod_substitute: Fix a memory leak. PR 44948
[Dan Poirier <poirier pobox.com>]
*) mod_proxy_ajp: Forward remote port information by default.
[Rainer Jung]
*) mod_disk_cache/mod_mem_cache: Fix handling of CacheIgnoreHeaders
directive to correctly remove headers before storing them.
[Lars Eilebrecht]
*) mod_deflate: revert changes in 2.2.8 that caused an invalid
etag to be emitted for on-the-fly gzip content-encoding.
PR 39727 will require larger fixes and this fix was far more
harmful than the original code. PR 45023. [Roy T. Fielding]
*) mod_disk_cache: The module now turns off sendfile support if
'EnableSendfile off' is defined globally. PR 41218.
[Lars Eilebrecht, Issac Goldstand]
*) prefork: Fix child process hang during graceful restart/stop in
configurations with multiple listening sockets. PR 42829. [Joe Orton,
Jeff Trawick]
*) 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_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.
PR38642 [Eric Covener]
*) mod_authnz_ldap: Reduce number of initialization debug messages and make
information more clear. PR 46342 [Dan Poirier]
*) mod_cache: Introduce 'no-cache' per-request environment variable
to prevent the saving of an otherwise cacheable response.
[Eric Covener]
*) core: Translate the status line to ASCII on EBCDIC platforms in
ap_send_interim_response() and for locally generated "100 Continue"
responses. [Eric Covener]
*) CGI: return 504 (Gateway timeout) rather than 500 when a script
times out before returning status line/headers.
PR 42190 [Nick Kew]
*) prefork: Log an error instead of segfaulting when child startup fails
due to pollset creation failures. PR 46467. [Jeff Trawick]
*) mod_ext_filter: fix error handling when the filter prog fails to start,
and introduce an onfail configuration option to abort the request
or to remove the broken filter and continue.
PR 41120 [Nick Kew]
*) 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 [Nick Kew]
*) mod_rewrite: fix "B" flag breakage by reverting r589343
PR 45529 [Bob Ionescu <bobsiegen googlemail.com>]
*) mod_cgid: fix segfault problem on solaris.
PR 39332 [Masaoki Kobayashi <masaoki techfirm.co.jp>, Jeff Trawick]
*) mod_ldap: Avoid a segfault when result->rc is checked in
uldap_connection_init when result is NULL. This could happen if LDAP
initialization failed. PR 45994. [Dan Poirier <poirier pobox.com>]
*) Set Listen protocol to "https" if port is set to 443 and no proto is
specified (as documented but not implemented). PR 46066
[Dan Poirier <poirier pobox.com>]
*) mod_cache: Correctly save Content-Encoding of cachable entity. PR 46401
[Dan Poirier <poirier pobox.com>]
*) Output -M and -S dumps (modules and vhosts) to stdout instead of stderr.
PR 42571 and PR 44266 (dup). [Dan Poirier <poirier pobox.com>]
*) mod_cache: When an explicit Expires or Cache-Control header is set, cache
normally non-cacheable response statuses. PR 46346.
[Alex Polvi <alex polvi.net>]
Changes with Apache 2.2.11
*) core: When the ap_http_header_filter processes an error bucket, cleanup
the passed brigade before returning AP_FILTER_ERROR down the filter
chain. This unambiguously ensures the same error bucket isn't revisited
[Ruediger Pluem]
*) core: Error responses set by filters were being coerced into 500 errors,
sometimes appended to the original error response. Log entry of:
'Handler for (null) returned invalid result code -3'
[Eric Covener]
*) configure: Don't reject libtool 2.x
PR 44817 [Arfrever Frehtes Taifersar Arahesis <Arfrever.FTA gmail.com>]
*) mod_autoindex: add configuration option to insert string
in HTML HEAD (IndexHeadInsert). [Nick Kew]
*) Add new LogFormat parameter, %k, which logs the number of
keepalive requests on this connection for this request.
PR 45762 [Dan Poirier <poirier pobox.com>, Jim Jagielski]
*) Export and install the mod_rewrite.h header to ensure the optional
rewrite_mapfunc_t and ap_register_rewrite_mapfunc functions are
available to third party modules. [Graham Leggett]
*) mod_cache: Convert age of cached object to seconds before comparing it to
age supplied by the request when checking whether to send a Warning
header for a stale response. PR 39713. [Owen Taylor <otaylor redhat.com>]
*) Build: Correctly set SSL_LIBS during openssl detection if pkgconfig is
not available. PR 46018 [Ruediger Pluem]
*) mod_proxy_ajp: Do not fail if response data is sent before all request
data is read. PR 45911 [Ruediger Pluem]
*) mod_proxy_balancer: Add in forced recovery for balancer members if
all are in error state. [Mladen Turk]
*) mod_proxy: Prevent segmentation faults by correctly adjusting the
lifetime of the buckets read from the proxy backend. PR 45792
[Ruediger Pluem]
*) mod_expires: Do not sets negative max-age / Expires header in the past.
PR 39774 [Jim Jagielski]
*) mod_info: Was displaying the wrong value for the KeepAliveTimeout
value. [Jim Jagielski]
*) mod_proxy_ajp: Fix wrongly formatted requests where client
sets Content-Length header, but doesn't provide a body.
Servlet container always expects that next packet is
body whenever C-L is present in the headers. This can lead
to wrong interpretation of the packets. In this case
send the empty body packet, so container can deal with
that. [Mladen Turk]
*) core: Add ap_timeout_parameter_parse to public API. [Ruediger Pluem]
*) mod_proxy: Add the possibility to set the worker parameters
connectiontimeout and ping in milliseconds. [Ruediger Pluem]
*) Worker MPM: Crosscheck that idle workers are still available before using
them and thus preventing an overflow of the worker queue which causes
a SegFault. PR 45605 [Denis Ustimenko <denusk gmail.com>]
*) Windows: Always build the odbc dbd driver on windows, to be consistent
with the apr-util default. [Tom Donovan]
Changes with Apache 2.2.10
*) SECURITY: CVE-2008-2939 (cve.mitre.org)
mod_proxy_ftp: Prevent XSS attacks when using wildcards in the path of
the FTP URL. Discovered by Marc Bevand of Rapid7. [Ruediger Pluem]
*) Allow for smax to be 0 for balancer members so that all idle
connections are able to be dropped should they exceed ttl.
PR 43371 [Phil Endecott <spam_from_apache_bugzilla chezphil.org>,
Jim Jagielski]
*) mod_proxy_http: Don't trigger a retry by the client if a failure to
read the response line was the result of a timeout.
[Adam Woodworth <mirkperl gmail.com>]
*) Support chroot on Unix-family platforms
PR 43596 [Dimitar Pashev <mitko banksoft-bg.com>]
*) mod_ssl: implement dynamic mutex callbacks for the benefit of
OpenSSL. [Sander Temme]
*) mod_proxy_balancer: Add 'bybusyness' load balance method.
[Joel Gluth <joelgluth yahoo.com.au>, Jim Jagielski]
*) mod_authn_alias: Detect during startup when AuthDigestProvider
is configured to use an incompatible provider via AuthnProviderAlias.
PR 45196 [Eric Covener]
*) mod_proxy: Add 'scolonpathdelim' parameter to allow for ';' to also be
used as a session path separator/delim PR 45158. [Jim Jagielski]
*) mod_charset_lite: Avoid dropping error responses by handling meta buckets
correctly. PR 45687 [Dan Poirier <poirier pobox.com>]
*) mod_proxy_http: Introduce environment variable proxy-initial-not-pooled
to avoid reusing pooled connections if the client connection is an
initial connection. PR 37770. [Ruediger Pluem]