The P1 dissector in Wireshark 1.10.x before 1.10.1 does not properly initialize a global variable, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.
http://anonsvn.wireshark.org/viewvc?view=revision&revision=50083
http://secunia.com/advisories/54296
http://secunia.com/advisories/54425
http://www.gentoo.org/security/en/glsa/glsa-201308-05.xml
http://www.wireshark.org/docs/relnotes/wireshark-1.10.1.html
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8826
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A17089