Related Vulnerabilities: CVE-2018-5206  

When the channel topic is set without specifying a sender, irssi before 1.0.6 may dereference a NULL pointer.

Severity Medium

Remote Yes

Type Denial of service

Description

When the channel topic is set without specifying a sender, irssi before 1.0.6 may dereference a NULL pointer.

AVG-575 irssi 1.0.5-1 1.0.6-1 Medium Fixed

16 Jan 2018 ASA-201801-12 AVG-575 irssi Medium denial of service

https://irssi.org/security/irssi_sa_2018_01.txt
https://github.com/irssi/irssi/commit/54d453623d879ea83d0818a80bd14151192953ec