In Wireshark 2.2.11 and before, the MRDISC dissector misuses a NULL pointer. This was addressed in epan/dissectors/packet-mrdisc.c by validating an IPv4 address. This vulnerability is similar to CVE-2017-9343. References: https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-17997 https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14299
Created wireshark tracking bugs for this issue: Affects: fedora-all [bug 1530895]