The fragment_set_tot_len function in epan/reassemble.c in Wireshark 1.6.x before 1.6.13 and 1.8.x before 1.8.5 does not properly determine the length of a reassembled packet for the DTLS dissector, which allows remote attackers to cause a denial of service (application crash) via a malformed packet.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16048
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8111
http://www.wireshark.org/security/wnpa-sec-2013-05.html
http://www.debian.org/security/2013/dsa-2625
http://lists.opensuse.org/opensuse-updates/2013-02/msg00037.html
http://lists.opensuse.org/opensuse-updates/2013-02/msg00028.html
http://anonsvn.wireshark.org/viewvc?view=revision&revision=46999
http://anonsvn.wireshark.org/viewvc/trunk/epan/reassemble.c?r1=46999&r2=46998&pathrev=46999