The X.509if dissector in Wireshark 1.2.x before 1.2.16 and 1.4.x before 1.4.5 does not properly initialize certain global variables, which allows remote attackers to cause a denial of service (application crash) via a crafted .pcap file.
anonsvn.wireshark.org/viewvc?revision=36608&view=revision
lists.fedoraproject.org/pipermail/package-announce/2011-April/058900.html
lists.fedoraproject.org/pipermail/package-announce/2011-April/058983.html
lists.fedoraproject.org/pipermail/package-announce/2011-April/058993.html
openwall.com/lists/oss-security/2011/04/18/2
openwall.com/lists/oss-security/2011/04/18/8
secunia.com/advisories/44172
secunia.com/advisories/44374
secunia.com/advisories/44822
secunia.com/advisories/45149
secunia.com/advisories/48947
securitytracker.com/id?1025388
www.debian.org/security/2011/dsa-2274
www.mandriva.com/security/advisories?name=MDVSA-2011:083
www.osvdb.org/71846
www.vupen.com/english/advisories/2011/1022
www.vupen.com/english/advisories/2011/1106
www.wireshark.org/security/wnpa-sec-2011-05.html
www.wireshark.org/security/wnpa-sec-2011-06.html
bugs.wireshark.org/bugzilla/show_bug.cgi?id=5754
bugs.wireshark.org/bugzilla/show_bug.cgi?id=5793
hermes.opensuse.org/messages/8701428
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15050