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TUCoPS :: Linux :: Apps A-M :: bx3389.htm

libxslt: Execution of arbitrary code



libxslt: Execution of arbitrary code
libxslt: Execution of arbitrary code



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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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