(RHSA-2009:0428) Moderate: cups security update

The Common UNIX® Printing System (CUPS) provides a portable printing layer
for UNIX operating systems.

An integer overflow flaw, leading to a heap-based buffer overflow, was
discovered in the Tagged Image File Format (TIFF) decoding routines used by
the CUPS image-converting filters, “imagetops” and “imagetoraster”. An
attacker could create a malicious TIFF file that could, potentially,
execute arbitrary code as the “lp” user if the file was printed.
(CVE-2009-0163)

Red Hat would like to thank Aaron Sigel of the Apple Product Security team
for responsibly reporting this flaw.

Users of cups are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing the
update, the cupsd daemon will be restarted automatically.