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_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>]
http://mirror.tourismthai.org/apache/httpd/httpd-2.2.12.tar.gz
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