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.
http://www.securityfocus.com/bid/106482
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15373
https://seclists.org/bugtraq/2019/Mar/35
https://www.debian.org/security/2019/dsa-4416
Source: MITRE
Published: 2019-01-08
Updated: 2020-01-15
Type: CWE-125
Base Score: 4.3
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM