netpbm security update

Updated netpbm packages that fix a security issue are now available.

This update has been rated as having low security impact by the Red Hat
Security Response Team.

The netpbm package contains a library of functions that support
programs for handling various graphics file formats, including .pbm
(portable bitmaps), .pgm (portable graymaps), .pnm (portable anymaps),
.ppm (portable pixmaps) and others.

A bug was found in the way netpbm converts PostScript files into PBM, PGM
or PPM files. An attacker could create a carefully crafted PostScript file
in such a way that it could execute arbitrary commands when the
file is processed by a victim using pstopnm. The Common Vulnerabilities
and Exposures project assigned the name CAN-2005-2471 to this issue.

All users of netpbm should upgrade to the updated packages, which
contain a backported patch to resolve this issue.

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via Red Hat Network. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

165354 - CAN-2005-2471 netpbm should use the -dSAFER option when calling Ghostscript

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2471
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=319757

pstopnm