Gentoo Linux Security Advisory GLSA 200909-13 – A remotely exploitable off-by-one error leading to a heap overflow was found in irssi which might result in the execution of arbitrary code. Nemo discovered an off-by-one error leading to a heap overflow in irssi’s event_wallops() parsing function. Versions less than 0.8.13-r1 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/81280/glsa-200909-13.txt
Source: https://packetstormsecurity.com/files/81280/Gentoo-Linux-Security-Advisory-200909-13.html