Updated cups packages that fix a security issue are now available for Red
Hat Enterprise Linux 3.
This update has been rated as having moderate security impact by the Red
Hat Security Response Team.
The Common UNIX Printing System (CUPS) provides a portable printing layer for UNIX operating systems. An integer overflow flaw, leading to a heap buffer overflow, was discovered in the Portable Network Graphics (PNG) decoding routines used by the CUPS image-converting filters, "imagetops" and "imagetoraster". An attacker could create a malicious PNG file that could, potentially, execute arbitrary code as the "lp" user if the file was printed. (CVE-2008-5286) CUPS users should upgrade to these updated packages, which contain a backported patch to correct this issue.