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Gentoo Linux Security Advisory GLSA 200807-06
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http://security.gentoo.org/
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Severity: Normal
Title: Apache: Denial of Service
Date: July 09, 2008
Bugs: #222643, #227111
ID: 200807-06
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Synopsis
=======
Multiple vulnerabilities in Apache might lead to a Denial of Service.
Background
=========
The Apache HTTP server is one of the most popular web servers on the
Internet.
Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-servers/apache < 2.2.9 >= 2.2.9
Description
==========
Multiple vulnerabilities have been discovered in Apache:
* Dustin Kirkland reported that the mod_ssl module can leak memory
when the client reports support for a compression algorithm
(CVE-2008-1678).
* Ryujiro Shibuya reported that the ap_proxy_http_process_response()
function in the mod_proxy module does not limit the number of
forwarded interim responses (CVE-2008-2364).
* sp3x of SecurityReason reported a Cross-Site Request Forgery
vulnerability in the balancer-manager in the mod_proxy_balancer
module (CVE-2007-6420).
Impact
=====
A remote attacker could exploit these vulnerabilities by connecting to
an Apache httpd, by causing an Apache proxy server to connect to a
malicious server, or by enticing a balancer administrator to connect to
a specially-crafted URL, resulting in a Denial of Service of the Apache
daemon.
Workaround
=========
There is no known workaround at this time.
Resolution
=========
All Apache users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-servers/apache-2.2.9"
References
=========
[ 1 ] CVE-2007-6420
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6420
[ 2 ] CVE-2008-1678
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1678
[ 3 ] CVE-2008-2364
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2364
Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200807-06.xml
Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
======
Copyright 2008 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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