[ GLSA 200508-01 ] Compress::Zlib: Buffer overflow
From: Sune Kloppenborg Jeppesen <jaervosz@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200508-01 ] Compress::Zlib: Buffer overflow
Date: Mon, 1 Aug 2005 07:57:55 +0200
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Organization: Gentoo Linux Security Team
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Gentoo Linux Security Advisory GLSA 200508-01
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http://security.gentoo.org/
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Severity: High
Title: Compress::Zlib: Buffer overflow
Date: August 01, 2005
Bugs: #100540
ID: 200508-01
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Synopsis
========
Compress::Zlib is vulnerable to a buffer overflow which could
potentially lead to execution of arbitrary code.
Background
==========
The Compress::Zlib is a Perl module which provides an interface to the
zlib compression library.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-perl/Compress-Zlib < 1.35 >= 1.35
Description
===========
Compress::Zlib 1.34 contains a local vulnerable version of zlib, which
may lead to a buffer overflow.
Impact
======
By creating a specially crafted compressed data stream, attackers can
overwrite data structures for applications that use Compress::Zlib,
resulting in a Denial of Service and potentially arbitrary code
execution.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Compress::Zlib users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-perl/Compress-Zlib-1.35"
References
==========
[ 1 ] GLSA 200507-19
http://www.gentoo.org/security/en/glsa/glsa-200507-19.xml
[ 2 ] GLSA 200507-05
http://www.gentoo.org/security/en/glsa/glsa-200507-05.xml
[ 3 ] CAN-2005-1849
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1849
[ 4 ] CAN-2005-2096
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2096
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200508-01.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
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