In Wireshark 2.6.0 to 2.6.5 and 2.4.0 to 2.4.11, the RTSE dissector and other ASN.1 dissectors could crash. This was addressed in epan/charsets.c by adding a get_t61_string length check.
lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
www.securityfocus.com/bid/106482
bugs.wireshark.org/bugzilla/show_bug.cgi?id=15373
code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=cd09cb5cfb673beca3cce20b1d6a9bc67a134ae1
seclists.org/bugtraq/2019/Mar/35
www.debian.org/security/2019/dsa-4416
www.oracle.com/security-alerts/cpujan2020.html
www.wireshark.org/security/wnpa-sec-2019-03.html