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[gentoo-announce] [ GLSA 200806-02 ] libxslt: Execution of arbitrary code

Posted on 03 June 2008
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 200806-02
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http://security.gentoo.org/
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Severity: Normal
Title: libxslt: Execution of arbitrary code
Date: June 03, 2008
Bugs: #222499
ID: 200806-02

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Synopsis
========
A vulnerability was found in libxslt, possibly resulting in the
execution of arbitrary code and Denial of Service.

Background
==========
Libxslt is the XSLT C library developed for the GNOME project. XSLT
itself is an XML language to define transformations for XML.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-libs/libxslt < 1.1.24 >= 1.1.24

Description
===========
Anthony de Almeida Lopes reported a vulnerability in libxslt when
handling XSL style-sheet files, which could be exploited to trigger the
use of uninitialized memory, e.g. in a call to "free()".

Impact
======
A remote attacker could entice a user or automated system to process an
XML file using a specially crafted XSL transformation file, possibly
resulting in the execution of arbitrary code or a Denial of Service.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All libxslt users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/libxslt-1.1.24"

References
==========
[ 1 ] CVE-2008-1767
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1767

Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200806-02.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


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