=====================================================================
                                  CERT-Renater

                       Note d'Information No. 2005/VULN009
_____________________________________________________________________

DATE                      : 07/01/2005

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Systems running xzgv versions prior to 0.8-r1.

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

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200501-09
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                             http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

   Severity: Normal
      Title: xzgv: Multiple overflows
       Date: January 06, 2005
       Bugs: #74069
         ID: 200501-09

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

xzgv contains multiple overflows that may lead to the execution of
arbitrary code.

Background
==========

xzgv is a picture viewer for X, with a thumbnail-based file selector.

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

     -------------------------------------------------------------------
      Package         /  Vulnerable  /                       Unaffected
     -------------------------------------------------------------------
   1  media-gfx/xzgv       <= 0.8                             >= 0.8-r1

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

Multiple overflows have been found in the image processing code of
xzgv, including an integer overflow in the PRF parsing code
(CAN-2004-0994).

Impact
======

An attacker could entice a user to open or browse a specially-crafted
image file, potentially resulting in the execution of arbitrary code
with the rights of the user running xzgv.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All xzgv users should upgrade to the latest version:

     # emerge --sync
     # emerge --ask --oneshot --verbose ">=media-gfx/xzgv-0.8-r1"

References
==========

   [ 1 ] CAN-2004-0994
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0994
   [ 2 ] iDEFENSE Advisory

http://www.idefense.com/application/poi/display?id=160&type=vulnerabilities&flashstatus=true

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

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

   http://security.gentoo.org/glsa/glsa-200501-09.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



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

         =========================================================
         Les serveurs de référence du CERT-Renater
         http://www.urec.fr/securite
         http://www.cru.fr/securite
         http://www.renater.fr
         =========================================================
         + CERT-RENATER          | tel : 01-53-94-20-44          +
         + 151 bd de l'Hopital   | fax : 01-53-94-20-41          +
         + 75013 Paris           | email: certsvp@renater.fr     +
         =========================================================








