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

http://security.gentoo.org/

Severity:	normal
Title:	teTeX, pTeX, CSTeX: Multiple overflows in included XPdf code
Date:	03/04/2006
Bugs:	#115775
ID:	200603-02

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	Architecture(s)
app-text/tetex	< 2.0.2-r8	>= 2.0.2-r8	All supported architectures
app-text/cstetex	< 2.0.2-r2	>= 2.0.2-r2	All supported architectures
app-text/ptex	< 3.1.5-r1	>= 3.1.5-r1	All 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 ">=app-text/tetex-2.0.2-r8"

All CSTeX users should upgrade to the latest version:


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

All pTeX users should upgrade to the latest version:


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

References

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 https://bugs.gentoo.org.