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AUSCERT External Security Bulletin Redistribution
Apache HTTP Server 2.2.29 Released
4 September 2014
AusCERT Security Bulletin Summary
Product: Apache HTTP Server
Publisher: The Apache Software Foundation and Apache HTTP Server Project
Operating System: UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
CVE Names: CVE-2014-0231 CVE-2014-0226 CVE-2014-0118
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Apache HTTP Server 2.2.29 Released
The Apache Software Foundation and the Apache HTTP Server Project are
pleased to announce the release of version 2.2.29 of the Apache HTTP
Server ("Apache"). (Note that 2.2.28 was not released). This version
of Apache is principally a security and bug fix maintenance release,
and addresses these specific security defects as well as other fixes;
mod_deflate: The DEFLATE input filter (inflates request bodies) now
limits the length and compression ratio of inflated request bodies to
avoid denial of sevice via highly compressed bodies. See directives
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.
Fix a race condition in scoreboard handling, which could lead to
a heap buffer overflow.
HTTP trailers could be used to replace HTTP headers late during
request processing, potentially undoing or otherwise confusing
modules that examined or modified request headers earlier.
Adds "MergeTrailers" directive to restore this legacy behavior.
We consider the Apache HTTP Server 2.4 release to be the best version
of Apache available, and encourage users of 2.2 and all prior versions
to upgrade. This 2.2 maintenance release is offered for those unable
to upgrade at this time. For further details, see:
Apache HTTP Server 2.4 and 2.2.29 are available for download from:
Please see the CHANGES_2.2 file, linked from the download page, for a
full list of changes. A condensed list, CHANGES_2.2.29 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
This release includes the Apache Portable Runtime (APR) version 1.5.1
and APR Utility Library (APR-util) version 1.5.3, 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 version 1.5 and APR-util version 1.5 represent minor version upgrades
from earlier httpd 2.2 source distributions.
This release builds on and extends the Apache 2.0 API and is superceeded
by the Apache 2.4 API. Modules written for Apache 2.0 or 2.4 will need
to be recompiled in order to run with Apache 2.2, and most will require
minimal or no source code changes.
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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