Wireshark, previously known as Ethereal, is a network protocol analyzer. Itis used to capture and browse the traffic running on a computer network.A heap-based buffer overflow flaw was found in the way Wireshark handledEndace ERF (Extensible Record Format) capture files. If Wireshark opened aspecially-crafted ERF capture file, it could crash or, possibly, executearbitrary code as the user running Wireshark. (CVE-2011-4102)Several denial of service flaws were found in Wireshark. Wireshark couldcrash or stop responding if it read a malformed packet off a network, oropened a malicious dump file. (CVE-2011-1958, CVE-2011-1959, CVE-2011-2175,CVE-2011-2698, CVE-2012-0041, CVE-2012-0042, CVE-2012-0066, CVE-2012-0067,CVE-2012-4285, CVE-2012-4289, CVE-2012-4290, CVE-2012-4291)The CVE-2011-1958, CVE-2011-1959, CVE-2011-2175, and CVE-2011-4102 issueswere discovered by Huzaifa Sidhpurwala of the Red Hat Security ResponseTeam.This update also fixes the following bugs:This update also adds the following enhancement:All users of Wireshark are advised to upgrade to these updated packages,which contain backported patches to correct these issues and add thisenhancement. All running instances of Wireshark must be restarted for theupdate to take effect.