In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the openSAFETY dissector could crash or exhaust system memory. This was addressed in epan/dissectors/packet-opensafety.c by checking for a negative length.
www.securityfocus.com/bid/98806
www.securitytracker.com/id/1038612
bugs.chromium.org/p/oss-fuzz/issues/detail?id=1212
bugs.wireshark.org/bugzilla/show_bug.cgi?id=13649
code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=dbc7cb0bbdd501fa96e0cb98668f6d6bf17ac4e6
www.wireshark.org/security/wnpa-sec-2017-28.html