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ESB-2014.1204 - [Win][UNIX/Linux] Apache HTTP Server: Multiple vulnerabilities

Date: 22 July 2014
References: ESB-2014.1218  ESB-2014.1237  ESB-2014.1444  ESB-2014.2048  ESB-2014.2329  ESB-2015.1526  ESB-2015.1903  ESB-2015.2611  

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             AUSCERT External Security Bulletin Redistribution

                    Apache HTTP Server 2.4.10 Released
                               22 July 2014


        AusCERT Security Bulletin Summary

Product:           Apache HTTP Server
Publisher:         The Apache Software Foundation
Operating System:  UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-3523 CVE-2014-0231 CVE-2014-0226
                   CVE-2014-0118 CVE-2014-0117 

Original Bulletin:

- --------------------------BEGIN INCLUDED TEXT--------------------

          Apache HTTP Server 2.4.10 Released

The Apache Software Foundation and the Apache HTTP Server Project
are pleased to announce the release of version 2.4.10 of the Apache
HTTP Server ("Apache").  This version of Apache is our latest GA
release of the new generation 2.4.x branch of Apache HTTPD and
represents fifteen years of innovation by the project, and is
recommended over all previous releases. This release of Apache is
principally a security, feature and bug fix release.

CVE-2014-0117 (
mod_proxy: Fix crash in Connection header handling which=20
allowed a denial of service attack against a reverse proxy
with a threaded MPM.

CVE-2014-3523 (
Fix a memory consumption denial of service in the WinNT MPM (used in all =
installations). Workaround: AcceptFilter <protocol> {none|connect}

CVE-2014-0226 (
Fix a race condition in scoreboard handling, which could lead to
a heap buffer overflow.

CVE-2014-0118 (
mod_deflate: The DEFLATE input filter (inflates request bodies) now
limits the length and compression ratio of inflated request bodies to =
denial of sevice via highly compressed bodies.  See directives
DeflateInflateLimitRequestBody, DeflateInflateRatioLimit,
and DeflateInflateRatioBurst.

CVE-2014-0231 (
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.

Also in this release are some exciting new features including:

*) Proxy FGI and websockets improvements
*) Proxy capability via handler
*) Finer control over scoping of RewriteRules
*) Unix Domain Socket (UDS) support for mod_proxy backends.
*) Support for larger shared memory sizes for mod_socache_shmcb
*) mod_lua and mod_ssl enhancements
*) Support named groups and backreferences within the LocationMatch,
  DirectoryMatch, FilesMatch and ProxyMatch directives.

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

Apache HTTP Server 2.4.10 is available for download from:

Apache 2.4 offers numerous enhancements, improvements, and performance
boosts over the 2.2 codebase.  For an overview of new features
introduced since 2.4 please see:

Please see the CHANGES_2.4 file, linked from the download page, for a
full list of changes. A condensed list, CHANGES_2.4.10 includes only
those changes introduced since the prior 2.4 release.  A summary of all=20=

of the security vulnerabilities addressed in this and earlier releases=20=

is available:

This release requires the Apache Portable Runtime (APR) version 1.5.x
and APR-Util version 1.5.x. The APR libraries must be upgraded for all
features of httpd to operate correctly.

This release builds on and extends the Apache 2.2 API.  Modules written
for Apache 2.2 will need to be recompiled in order to run with Apache
2.4, and 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.

- --------------------------END INCLUDED TEXT--------------------

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