tetex security update

CentOS Errata and Security Advisory CESA-2005:354

TeTeX is an implementation of TeX for Linux or UNIX systems. TeX takes
a text file and a set of formatting commands as input and creates a
typesetter-independent .dvi (DeVice Independent) file as output.

A number of security flaws have been found affecting libraries used
internally within teTeX. An attacker who has the ability to trick a user
into processing a malicious file with teTeX could cause teTeX to crash or
possibly execute arbitrary code.

A number of integer overflow bugs that affect Xpdf were discovered. The
teTeX package contains a copy of the Xpdf code used for parsing PDF files
and is therefore affected by these bugs. The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the names CAN-2004-0888 and
CAN-2004-1125 to these issues.

A number of integer overflow bugs that affect libtiff were discovered. The
teTeX package contains an internal copy of libtiff used for parsing TIFF
image files and is therefore affected by these bugs. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
names CAN-2004-0803, CAN-2004-0804 and CAN-2004-0886 to these issues.

Also latex2html is added to package tetex-latex for 64bit platforms.

Users of teTeX should upgrade to these updated packages, which contain
backported patches and are not vulnerable to these issues.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2005-April/073682.html
https://lists.centos.org/pipermail/centos-announce/2005-April/073685.html
https://lists.centos.org/pipermail/centos-announce/2005-April/073686.html
https://lists.centos.org/pipermail/centos-announce/2005-April/073689.html

Affected packages:
tetex
tetex-afm
tetex-doc
tetex-dvips
tetex-fonts
tetex-latex
tetex-xdvi

Upstream details at:
https://access.redhat.com/errata/RHSA-2005:354