The dissect_dcom_OBJREF function in epan/dissectors/packet-dcom.c in the DCOM dissector in Wireshark 1.12.x before 1.12.9 does not initialize a certain IPv4 data structure, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.
https://security.gentoo.org/glsa/201604-05
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11610
http://www.wireshark.org/security/wnpa-sec-2015-33.html
http://www.securitytracker.com/id/1034551
http://www.securityfocus.com/bid/79816
http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html