Irssi 1.2.x before 1.2.2 has a use-after-free if the IRC server sends a double CAP.Referenceshttps://irssi.org/security/irssi_sa_2019_08.txthttp://www.openwall.com/lists/oss-security/2019/08/29/3http://www.openwall.com/lists/oss-security/2019/08/29/5https://usn.ubuntu.com/4119-1/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JDDRTNKDDO52CO5USJ73BE6XVG7BD4KP/
