In Wireshark 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4, the NBAP dissector could crash. This was addressed in epan/dissectors/asn1/nbap/nbap.cnf by ensuring DCH ID initialization.
https://www.wireshark.org/security/wnpa-sec-2018-14.html
https://www.debian.org/security/2018/dsa-4217
https://lists.debian.org/debian-lts-announce/2018/04/msg00018.html