In Wireshark 2.4.0 to 2.4.1, the RTSP dissector could crash. This was addressed in epan/dissectors/packet-rtsp.c by correcting the scope of a variable.
https://www.wireshark.org/security/wnpa-sec-2017-45.html
https://euvd.enisa.europa.eu/vulnerability/EUVD-2017-6650
https://code.wireshark.org/review/23635