epan/dissectors/packet-ldss.c in the LDSS dissector in Wireshark 1.12.x before 1.12.13 and 2.x before 2.0.5 mishandles conversations, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=12662
http://www.wireshark.org/security/wnpa-sec-2016-45.html
http://www.securitytracker.com/id/1036480