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                                  CERT-Renater

                       Note d'Information No. 2005/VULN600
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DATE                      : 10/10/2005

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Systems running xine-lib.

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Gentoo Linux Security Advisory                           GLSA 200510-08
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                                             http://security.gentoo.org/
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   Severity: Normal
      Title: xine-lib: Format string vulnerability
       Date: October 08, 2005
       Bugs: #107854
         ID: 200510-08

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Synopsis
========

xine-lib contains a format string error in CDDB response handling that
may be exploited to execute arbitrary code.

Background
==========

xine-lib is a multimedia library which can be utilized to create
multimedia frontends. It includes functions to retrieve information
about audio CD contents from public CDDB servers.

Affected packages
=================

     -------------------------------------------------------------------
      Package              /  Vulnerable  /                  Unaffected
     -------------------------------------------------------------------
   1  media-libs/xine-lib     < 1.1.0-r5                    >= 1.1.0-r5
                                                           *>= 1.0.1-r4
                                                           *>= 1_rc8-r2

Description
===========

Ulf Harnhammar discovered a format string bug in the routines handling
CDDB server response contents.

Impact
======

An attacker could submit malicious information about an audio CD to a
public CDDB server (or impersonate a public CDDB server). When the
victim plays this CD on a multimedia frontend relying on xine-lib, it
could end up executing arbitrary code.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All xine-lib users should upgrade to the latest version:

     # emerge --sync
     # emerge --ask --oneshot --verbose media-libs/xine-lib

References
==========

   [ 1 ] CAN-2005-2967
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2967

Availability
============

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

   http://security.gentoo.org/glsa/glsa-200510-08.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 at 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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