Irssi 1.3.x and 1.4.x before 1.4.4 has a use-after-free because of use of a stale special collector reference. This occurs when printing of a non-formatted line is concurrent with printing of a formatted line.
https://www.openwall.com/lists/oss-security/2023/03/30/5
https://irssi.org/security/irssi_sa_2023_03.txt
Source: Mitre, NVD
Published: 2023-04-14
Updated: 2023-04-24
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
Severity: Medium
Base Score: 5.3
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L