In Wireshark 2.2.0 to 2.2.6, the DOF dissector could read past the end of a buffer. This was addressed in epan/dissectors/packet-dof.c by validating a size value.
https://www.wireshark.org/security/wnpa-sec-2017-23.html
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13608
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1151