epan/dissectors/packet-websocket.c in the WebSocket dissector in Wireshark 1.12.x before 1.12.5 uses a recursive algorithm, which allows remote attackers to cause a denial of service (CPU consumption) via a crafted packet.
www.debian.org/security/2015/dsa-3277
www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
www.securityfocus.com/bid/74629
www.wireshark.org/security/wnpa-sec-2015-13.html
bugs.wireshark.org/bugzilla/show_bug.cgi?id=10989
code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=4ee6bcbd2e03a25f1e6b0239558d9edeaf8040c0
security.gentoo.org/glsa/201510-03