The dissect_diameter_base_framed_ipv6_prefix function in epan/dissectors/packet-diameter.c in the DIAMETER dissector in Wireshark 1.12.x before 1.12.9 and 2.0.x before 2.0.1 does not validate the IPv6 prefix length, which allows remote attackers to cause a denial of service (stack-based buffer overflow and application crash) via a crafted packet.
www.debian.org/security/2016/dsa-3505
www.securityfocus.com/bid/79382
www.securitytracker.com/id/1034551
www.wireshark.org/security/wnpa-sec-2015-43.html
bugs.wireshark.org/bugzilla/show_bug.cgi?id=11792
code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=aaa28a9d39158ca1033bbd3372cf423abbf4f202
security.gentoo.org/glsa/201604-05