GLSA 200603-02 teTeX, pTeX, CSTeX: Multiple overflows in included XPdf code

Gentoo Linux Security Advisory GLSA 200603-02
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http://security.gentoo.org/
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Severity: Normal
Title: teTeX, pTeX, CSTeX: Multiple overflows in included XPdf
code
Date: March 04, 2006
Bugs: #115775
ID: 200603-02

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Synopsis
========

CSTeTeX, pTeX, and teTeX include vulnerable XPdf code to handle PDF
files, making them vulnerable to the execution of arbitrary code.

Background
==========

teTex is a complete TeX distribution. It is used for creating and
manipulating LaTeX documents. CSTeX is a TeX distribution with Czech
and Slovak support. pTeX is and ASCII publishing TeX distribution.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-text/tetex lt; 2.0.2-r8 gt;= 2.0.2-r8
2 app-text/cstetex lt; 2.0.2-r2 gt;= 2.0.2-r2
3 app-text/ptex lt; 3.1.5-r1 gt;= 3.1.5-r1
-------------------------------------------------------------------
3 affected packages on all of their supported architectures.
-------------------------------------------------------------------

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

CSTeX, teTex, and pTeX include XPdf code to handle PDF files. This XPdf
code is vulnerable to several heap overflows (GLSA 200512-08) as well
as several buffer and integer overflows discovered by Chris Evans
(CESA-2005-003).

Impact
======

An attacker could entice a user to open a specially crafted PDF file
with teTeX, pTeX or CSTeX, 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 teTex users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=app-text/tetex-2.0.2-r8"

All CSTeX users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=app-text/cstetex-2.0.2-r2"

All pTeX users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=app-text/ptex-3.1.5-r1"

References
==========

[ 1 ] CVE-2005-3193
http://www.cve.mitre.org/cgi-bin/cvename.cgi?nameÊN-2005-3193
[ 2 ] GLSA 200512-08
http://www.gentoo.org/security/en/glsa/glsa-200512-08.xml
[ 3 ] CESA-2005-003
http://scary.beasts.org/security/CESA-2005-003.txt

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

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

http://security.gentoo.org/glsa/glsa-200603-02.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 2006 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