Date: Tue, 24 Mar 2009 22:42:45 +0100
From: Pierre-Yves Rofes <py@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200903-38 ] Squid: Multiple Denial of Service vulnerabilities
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Gentoo Linux Security Advisory GLSA 200903-38
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http://security.gentoo.org/
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Severity: Normal
Title: Squid: Multiple Denial of Service vulnerabilities
Date: March 24, 2009
Bugs: #216319, #257585
ID: 200903-38
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Synopsis
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Multiple vulnerabilities have been found in Squid which allow for
remote Denial of Service attacks.
Background
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Squid is a full-featured web proxy cache.
Affected packages
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Package / Vulnerable / Unaffected
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1 net-proxy/squid < 2.7.6 >=3D 2.7.6
Description
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* The arrayShrink function in lib/Array.c can cause an array to
shrink to 0 entries, which triggers an assert error. NOTE: this issue
is due to an incorrect fix for CVE-2007-6239 (CVE-2008-1612).
* An invalid version number in a HTTP request may trigger an
assertion in HttpMsg.c and HttpStatusLine.c (CVE-2009-0478).
Impact
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The issues allows for Denial of Service attacks against the service via
an HTTP request with an invalid version number and other specially
crafted requests.
Workaround
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There is no known workaround at this time.
Resolution
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All Squid users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=3Dnet-proxy/squid-2.7.6"
References
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[ 1 ] CVE-2007-6239
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2007-6239
[ 2 ] CVE-2008-1612
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-1612
[ 3 ] CVE-2009-0478
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-0478
[ 4 ] GLSA-200801-05
http://www.gentoo.org/security/en/glsa/glsa-200801-05.xml
Availability
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This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200903-38.xml
Concerns?
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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
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Copyright 2009 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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