An issue was discovered in Irssi. When the number of windows exceeds the available space, a crash due to a NULL pointer dereference in cmd_window_show function of fe-text/mainwindows.c file could occur with non-default configurations. Upstream commit: https://github.com/irssi/irssi/commit/d3dc9a1307adc40425bf162f1f867a39e535f501 Upstream patch: https://github.com/irssi/irssi/commit/5b5bfef03596d95079c728f65f523570dd7b03aa References: https://irssi.org/security/irssi_sa_2018_02.txt
Created irssi tracking bugs for this issue: Affects: fedora-all [bug 1546317]