In Wireshark before 2.2.12, the MRDISC dissector misuses a NULL pointer and crashes. This was addressed in epan/dissectors/packet-mrdisc.c by validating an IPv4 address. This vulnerability is similar to CVE-2017-9343.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-17997.json"