In Wireshark 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10, there is an RTMPT dissector infinite loop, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-rtmpt.c by properly incrementing a certain sequence value.
https://www.wireshark.org/security/wnpa-sec-2017-04.html
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13347