epan/dissectors/packet-nbap.c in the NBAP dissector in Wireshark 1.12.x before 1.12.9 and 2.0.x before 2.0.1 does not validate conversation data, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted packet.
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11602
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11835
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11841
https://security.gentoo.org/glsa/201604-05
http://www.debian.org/security/2016/dsa-3505
http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html