The DTLS dissector in Wireshark 1.6.x before 1.6.14 and 1.8.x before 1.8.6 does not validate the fragment offset before invoking the reassembly state machine, which allows remote attackers to cause a denial of service (application crash) via a large offset value that triggers write access to an invalid memory location.
anonsvn.wireshark.org/viewvc?view=revision&revision=48011
lists.opensuse.org/opensuse-updates/2013-03/msg00065.html
lists.opensuse.org/opensuse-updates/2013-03/msg00077.html
secunia.com/advisories/52471
www.debian.org/security/2013/dsa-2644
www.wireshark.org/docs/relnotes/wireshark-1.6.14.html
www.wireshark.org/docs/relnotes/wireshark-1.8.6.html
www.wireshark.org/security/wnpa-sec-2013-22.html
bugs.wireshark.org/bugzilla/show_bug.cgi?id=8380
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16672