In Wireshark 2.2.0 to 2.2.4 and 2.0.0 to 2.0.10, there is a NetScaler file parser infinite loop, triggered by a malformed capture file. This was addressed in wiretap/netscaler.c by validating record sizes.
https://www.wireshark.org/security/wnpa-sec-2017-07.html
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13429