In Wireshark 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12, epan/dissectors/packet-dcm.c had an infinite loop that was addressed by checking for integer wraparound.
www.securityfocus.com/bid/103158
bugs.wireshark.org/bugzilla/show_bug.cgi?id=14411
code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=afc780e2c796e971bb7d164103f4f0d10d3c25b5
lists.debian.org/debian-lts-announce/2018/04/msg00018.html
lists.debian.org/debian-lts-announce/2019/01/msg00010.html
www.wireshark.org/security/wnpa-sec-2018-06.html