A flaw was found in Wireshark 2.6.0, 2.4.0 to 2.4.6, and 2.2.0 to 2.2.14, the Q.931 dissector could crash. It may be possible to make Wireshark crash by injecting a malformed packet onto the wire or by convincing someone to read a malformed packet trace file. This was addressed in epan/dissectors/packet-q931.c by avoiding a use-after-free after a malformed packet prevented certain cleanup. References: https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14689 https://www.wireshark.org/security/wnpa-sec-2018-31.html Upstream Patch: https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=ccb1ac3c8cec47fbbbf2e80ced80644005c65252
Created wireshark tracking bugs for this issue: Affects: fedora-all [bug 1581754]