Home / mailings [gentoo-announce] [ GLSA 200804-02 ] bzip2: Denial of Service
Posted on 03 April 2008
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Gentoo Linux Security Advisory GLSA 200804-02
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http://security.gentoo.org/
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Severity: Normal
Title: bzip2: Denial of Service
Date: April 02, 2008
Bugs: #213820
ID: 200804-02
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Synopsis
========
A buffer overread vulnerability has been discovered in Bzip2.
Background
==========
bzip2 is a free and open source lossless data compression program.
Affected packages
=================
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Package / Vulnerable / Unaffected
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1 app-arch/bzip2 < 1.0.5 >= 1.0.5
Description
===========
The Oulu University discovered that bzip2 does not properly check
offsets provided by the bzip2 file, leading to a buffer overread.
Impact
======
Remote attackers can entice a user or automated system to open a
specially crafted file that triggers a buffer overread, causing a
Denial of Service. libbz2 and programs linking against it are also
affected.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All bzip2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/bzip2-1.0.5"
References
==========
[ 1 ] CVE-2008-1372
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1372
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200804-02.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 2008 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
