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                                  CERT-Renater

                       Note d'Information No. 2005/VULN051
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DATE                      : 24/01/2005

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Systems running KPdf, KOffice.

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Gentoo Linux Security Advisory                           GLSA 200501-32
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                                             http://security.gentoo.org/
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   Severity: Normal
      Title: KPdf, KOffice: Stack overflow in included Xpdf code
       Date: January 23, 2005
       Bugs: #78619, #78620
         ID: 200501-32

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Synopsis
========

KPdf and KOffice both include vulnerable Xpdf code to handle PDF files,
making them vulnerable to the execution of arbitrary code.

Background
==========

KPdf is a KDE-based PDF viewer included in the kdegraphics package.
KOffice is an integrated office suite for KDE.

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

     -------------------------------------------------------------------
      Package               /  Vulnerable  /                 Unaffected
     -------------------------------------------------------------------
   1  app-office/koffice       < 1.3.5-r2                   >= 1.3.5-r2
   2  kde-base/kdegraphics     < 3.3.2-r2                   >= 3.3.2-r2
                                                           *>= 3.2.3-r4
     -------------------------------------------------------------------
      2 affected packages on all of their supported architectures.
     -------------------------------------------------------------------

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

KPdf and KOffice both include Xpdf code to handle PDF files. Xpdf is
vulnerable to a new stack overflow, as described in GLSA 200501-28.

Impact
======

An attacker could entice a user to open a specially-crafted PDF file,
potentially resulting in the execution of arbitrary code with the
rights of the user running the affected application.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All KPdf users should upgrade to the latest version of kdegraphics:

     # emerge --sync
     # emerge --ask --oneshot --verbose kde-base/kdegraphics

All KOffice users should upgrade to the latest version:

     # emerge --sync
     # emerge --ask --oneshot --verbose app-office/koffice

References
==========

   [ 1 ] GLSA 200501-18
         http://www.gentoo.org/security/en/glsa/glsa-200501-28.xml
   [ 2 ] CAN-2005-0064
         http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0064
   [ 3 ] KDE Security Advisory: kpdf Buffer Overflow Vulnerability
         http://www.kde.org/info/security/advisory-20050119-1.txt
   [ 4 ] KDE Security Advisory: KOffice PDF Import Filter Vulnerability
         http://www.kde.org/info/security/advisory-20050120-1.txt

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

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

   http://security.gentoo.org/glsa/glsa-200501-32.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


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