Date: Thu, 25 Jan 2007 21:24:23 +0100
From: Matthias Geerdsen <vorlon@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200701-22 ] Squid: Multiple Denial of Service vulnerabilities
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Gentoo Linux Security Advisory GLSA 200701-22
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http://security.gentoo.org/
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Severity: Normal
Title: Squid: Multiple Denial of Service vulnerabilities
Date: January 25, 2007
Bugs: #162364
ID: 200701-22
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Synopsis
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Two vulnerabilities have been found in Squid which make it susceptible
to Denial of Service attacks.
Background
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Squid is a multi-protocol proxy server.
Affected packages
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Package / Vulnerable / Unaffected
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1 net-proxy/squid < 2.6.7 >=3D 2.6.7
Description
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Squid fails to correctly handle ftp:// URI's. There is also an error in
the external_acl queue which can cause an infinite looping condition.
Impact
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An attacker could attempt to retrieve a specially crafted URI via a
Squid server causing the service to crash. If an attacker could
generate a sufficiently high load on the Squid services, they could
cause a Denial of Service by forcing Squid into an infinite loop.
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-2.6.7"
References
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[ 1 ] CVE-2007-0247
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2007-0247
[ 2 ] CVE-2007-0248
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2007-0248
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-200701-22.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 2007 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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