tetex security update

CentOS Errata and Security Advisory CESA-2007:1027

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

Alin Rad Pop discovered several flaws in the handling of PDF files. An
attacker could create a malicious PDF file that would cause TeTeX to crash
or potentially execute arbitrary code when opened.
(CVE-2007-4352, CVE-2007-5392, CVE-2007-5393)

A flaw was found in the t1lib library, used in the handling of Type 1
fonts. An attacker could create a malicious file that would cause TeTeX to
crash, or potentially execute arbitrary code when opened. (CVE-2007-4033)

Users are advised to upgrade to these updated packages, which contain
backported patches to resolve these issues.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2007-November/076565.html
https://lists.centos.org/pipermail/centos-announce/2007-November/076566.html
https://lists.centos.org/pipermail/centos-announce/2007-November/076569.html
https://lists.centos.org/pipermail/centos-announce/2007-November/076570.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-2007:1027