GLSA 200508-01: Compress::Zlib: Buffer overflow
Posted on: 08/01/2005 01:36 AM

A Compress::Zlib security update has been released for Gentoo Linux

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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
================

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Package / Vulnerable / Unaffected
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1 dev-perl/Compress-Zlib lt; 1.35 gt;= 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 "gt;=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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