From: Sune Kloppenborg Jeppesen <jaervosz@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200502-25 ] Squid: Denial of Service through DNS responses
Date: Fri, 18 Feb 2005 16:58:22 +0100
User-Agent: KMail/1.7.2
Cc: bugtraq@securityfocus.com, full-disclosure@lists.netsys.com,
security-alerts@linuxsecurity.com
Organization: Gentoo Linux Security Team
X-GPG-Key: http://home.coming.dk/skj.pub.gpg
MIME-Version: 1.0
Content-Type: multipart/signed;
boundary="nextPart9841509.2U8gYyDZ4C";
protocol="application/pgp-signature";
micalg=pgp-sha1
Content-Transfer-Encoding: 7bit
Message-Id: <200502181658.31002.jaervosz@gentoo.org.>
X-Virus-Scanned: antivirus-gw at tyumen.ru
--nextPart9841509.2U8gYyDZ4C
Content-Type: text/plain;
charset="us-ascii"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 200502-25
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal
Title: Squid: Denial of Service through DNS responses
Date: February 18, 2005
Bugs: #81997
ID: 200502-25
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis
========
Squid contains a bug in the handling of certain DNS responses resulting
in a Denial of Service.
Background
==========
Squid is a full-featured Web proxy cache designed to run on Unix-like
systems. It supports proxying and caching of HTTP, FTP, and other
protocols, as well as SSL support, cache hierarchies, transparent
caching, access control lists and many other features.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 www-proxy/squid < 2.5.8 >= 2.5.8
Description
===========
Handling of certain DNS responses trigger assertion failures.
Impact
======
By returning a specially crafted DNS response an attacker could cause
Squid to crash by triggering an assertion failure.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Squid users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-proxy/squid-2.5.8"
References
==========
[ 1 ] CAN-2005-0446
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0446
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200502-25.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 2005 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/2.0
--nextPart9841509.2U8gYyDZ4C
Content-Type: application/pgp-signature
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.6 (GNU/Linux)
iD8DBQBCFhCmzKC5hMHO6rkRAjCZAJ9NoqNEMVJ/zJWet5kSMFMDKnAlMgCgi3cy
NoGJo4+ZwotKid22++8fjWQ=
=131f
-----END PGP SIGNATURE-----
--nextPart9841509.2U8gYyDZ4C--
