In Wireshark 2.4.0 to 2.4.1, 2.2.0 to 2.2.9, and 2.0.0 to 2.0.15, the DMP dissector could crash. This was addressed in epan/dissectors/packet-dmp.c by validating a string length.
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14068
https://code.wireshark.org/review/23591
https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html