plugins/ethercat/packet-ecatmb.c in the EtherCAT Mailbox dissector in Wireshark 1.4.x before 1.4.15, 1.6.x before 1.6.10, and 1.8.x before 1.8.2 does not properly handle certain integer fields, which allows remote attackers to cause a denial of service (application exit) via a malformed packet.
http://anonsvn.wireshark.org/viewvc?view=revision&revision=43149
http://lists.opensuse.org/opensuse-updates/2012-08/msg00033.html
https://blogs.oracle.com/sunsecurity/entry/multiple_vulnerabilities_in_wireshark3
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7562
http://secunia.com/advisories/50276
http://secunia.com/advisories/51363
http://secunia.com/advisories/54425
https://hermes.opensuse.org/messages/15514562
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15527