Irssi before 0.8.21 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a string containing a formatting sequence (%[) without a closing bracket (]).Referenceshttps://lists.debian.org/debian-lts-announce/2017/12/msg00022.htmlhttp://www.securityfocus.com/bid/96581https://blog.fuzzing-project.org/55-Fuzzing-Irssi-with-Perl-Scripts.htmlhttps://irssi.org/security/irssi_sa_2017_01.txthttp://www.openwall.com/lists/oss-security/2017/01/12/8http://www.openwall.com/lists/oss-security/2017/01/13/2
