In Wireshark 2.4.0 to 2.4.5 and 2.2.0 to 2.2.13, epan/oids.c has a memory leak.
bugs.wireshark.org/bugzilla/show_bug.cgi?id=14485
code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=0fbc50f9b9219be54d6db47f04b65af19696a7c7
lists.debian.org/debian-lts-announce/2018/05/msg00019.html
lists.debian.org/debian-lts-announce/2019/01/msg00010.html
www.wireshark.org/security/wnpa-sec-2018-24.html