The dissect_drda function in epan/dissectors/packet-drda.c in Wireshark 1.6.x through 1.6.10 and 1.8.x through 1.8.2 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a small value for a certain length field in a capture file.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15646
https://bugzilla.redhat.com/show_bug.cgi?id=849926
http://www.securitytracker.com/id?1027464
http://www.gentoo.org/security/en/glsa/glsa-201308-05.xml