In Wireshark 2.4.0 to 2.4.4 and 2.2.0 to 2.2.12, the IEEE 802.11 dissector could crash. This was addressed in epan/crypt/airpdcap.c by rejecting lengths that are too small.
https://www.wireshark.org/security/wnpa-sec-2018-05.html
https://www.debian.org/security/2018/dsa-4217
https://lists.debian.org/debian-lts-announce/2018/04/msg00018.html