In Wireshark 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10, there is a K12 file parser crash, triggered by a malformed capture file. This was addressed in wiretap/k12.c by validating the relationships between lengths and offsets.Referenceshttps://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13431https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=7edc761a01cda8e1b37677f673985582330317d2http://www.debian.org/security/2017/dsa-3811https://www.wireshark.org/security/wnpa-sec-2017-09.htmlhttp://www.securityfocus.com/bid/96565
