Updated tetex packages that fix a security issue in PDF handling are now
available for Red Hat Enterprise Linux 2.1, 3, 4, and 5.
This update has been rated as having important security impact by the Red
Hat Security Response Team.
TeTeX is an implementation of TeX. TeX takes a text file and a set of
formatting commands as input and creates a typesetter-independent .dvi
(DeVice Independent) file as output.
Maurycy Prodeus discovered an integer overflow flaw in the processing
of PDF files. An attacker could create a malicious PDF file that would
cause TeTeX to crash or potentially execute arbitrary code when opened.
All users of TeTeX should upgrade to these updated packages, which
contain a backported patch to resolve this issue.