The Common UNIX Printing System (CUPS) provides a portable printing layerfor UNIX operating systems.A use-after-free flaw was found in the way the CUPS server parsed InternetPrinting Protocol (IPP) packets. A malicious user able to send IPP requeststo the CUPS server could use this flaw to crash the CUPS server or,potentially, execute arbitrary code with the privileges of the CUPS server.(CVE-2010-2941)A possible privilege escalation flaw was found in CUPS. An unprivilegedprocess running as the "lp" user (such as a compromised external filterprogram spawned by the CUPS server) could trick the CUPS server intooverwriting arbitrary files as the root user. (CVE-2010-2431)Red Hat would like to thank Emmanuel Bouillon of NATO C3 Agency forreporting the CVE-2010-2941 issue.Users of cups are advised to upgrade to these updated packages, whichcontain backported patches to correct these issues. After installing thisupdate, the cupsd daemon will be restarted automatically.