epan/dissectors/packet-iax2.c in the IAX2 dissector in Wireshark 1.12.x before 1.12.11 and 2.0.x before 2.0.3 uses an incorrect integer data type, which allows remote attackers to cause a denial of service (infinite loop) via a crafted packet.
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=12260
http://www.wireshark.org/security/wnpa-sec-2016-24.html
http://www.securitytracker.com/id/1035685
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html