The dissect_packet function in epan/packet.c in Wireshark 1.4.x before 1.4.11 and 1.6.x before 1.6.5 allows remote attackers to cause a denial of service (application crash) via a long packet in a capture file, as demonstrated by an airopeek file.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15297
http://www.wireshark.org/security/wnpa-sec-2012-01.html
http://www.openwall.com/lists/oss-security/2012/01/20/4
http://www.openwall.com/lists/oss-security/2012/01/11/7
http://www.gentoo.org/security/en/glsa/glsa-201308-05.xml
http://secunia.com/advisories/54425
http://secunia.com/advisories/48947
http://secunia.com/advisories/47494
http://rhn.redhat.com/errata/RHSA-2013-0125.html
http://anonsvn.wireshark.org/viewvc?view=revision&revision=40164