In Wireshark 2.2.0 to 2.2.7 and 2.0.0 to 2.0.13, the MQ dissector could crash. This was addressed in epan/dissectors/packet-mq.c by validating the fragment length before a reassembly attempt.
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13792
https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html