In Wireshark 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12, epan/dissectors/packet-ber.c had an infinite loop that was addressed by validating a length.
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14444
https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html