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Apache 2.2.22 Multiple Updates

Apache 2.2.22 Multiple Updates
Posted Feb 2, 2012
Site httpd.apache.org

Apache HTTP Server version 2.2.22 has been released. It addresses a wide array of vulnerabilities ranging from denial of service to integer overflow issues.

tags | advisory, web, denial of service, overflow, vulnerability
advisories | CVE-2011-3368, CVE-2011-3607, CVE-2011-4317, CVE-2012-0021, CVE-2012-0031, CVE-2012-0053
MD5 | 2b97a73d1c64253306a0cda3d5cfb625

Apache 2.2.22 Multiple Updates

Change Mirror Download
                       Apache HTTP Server 2.2.22 Released

The Apache Software Foundation and the Apache HTTP Server Project are
pleased to announce the release of version 2.2.22 of the Apache HTTP
Server ("Apache"). This version of Apache is principally a security
and bug fix release, including the following significant security fixes:

* 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.

* 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.

* 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.

* 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.

* SECURITY: CVE-2012-0031 (cve.mitre.org)
Fix scoreboard issue which could allow an unprivileged child process
could cause the parent to crash at shutdown rather than terminate
cleanly.

* SECURITY: CVE-2012-0053 (cve.mitre.org)
Fixed an issue in error responses that could expose "httpOnly" cookies
when no custom ErrorDocument is specified for status code 400.

The Apache HTTP Project thanks halfdog, Context Information Security Ltd,
Prutha Parikh of Qualys, and Norman Hippert for bringing these issues to
the attention of the security team.

We consider this release to be the best version of Apache available, and
encourage users of all prior versions to upgrade.

Apache HTTP Server 2.2.22 is available for download from:

http://httpd.apache.org/download.cgi

Please see the CHANGES_2.2 file, linked from the download page, for a
full list of changes. A condensed list, CHANGES_2.2.22 includes only
those changes introduced since the prior 2.2 release. A summary of all
of the security vulnerabilities addressed in this and earlier releases
is available:

http://httpd.apache.org/security/vulnerabilities_22.html

This release includes the Apache Portable Runtime (APR) version 1.4.5
and APR Utility Library (APR-util) version 1.4.2, bundled with the tar
and zip distributions. The APR libraries libapr and libaprutil (and
on Win32, libapriconv version 1.2.1) must all be updated to ensure
binary compatibility and address many known security and platform bugs.
APR-util version 1.4 represents a minor version upgrade from earlier
httpd source distributions, which previously included version 1.3.

Apache 2.2 offers numerous enhancements, improvements, and performance
boosts over the 2.0 codebase. For an overview of new features
introduced since 2.0 please see:

http://httpd.apache.org/docs/2.2/new_features_2_2.html

This release builds on and extends the Apache 2.0 API. Modules written
for Apache 2.0 will need to be recompiled in order to run with Apache
2.2, and require minimal or no source code changes.

http://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x/VERSIONING

When upgrading or installing this version of Apache, please bear in mind
that if you intend to use Apache with one of the threaded MPMs (other
than the Prefork MPM), you must ensure that any modules you will be
using (and the libraries they depend on) are thread-safe.

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