epan/proto.c in Wireshark 1.12.x before 1.12.13 and 2.x before 2.0.5 allows remote attackers to cause a denial of service (OpenFlow dissector large loop) via a crafted packet.
http://openwall.com/lists/oss-security/2016/07/28/3
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=12659
http://www.debian.org/security/2016/dsa-3648