CVE-2018-5206

Cuando el tema del canal está definido sin especificar ningún remitente, Irssi en versiones anteriores a la 1.0.6 podría desreferenciar un puntero NULL.

Joseph Bisch discovered that Irssi incorrectly handled incomplete escape codes. If a user were tricked into using malformed commands or opening malformed files, an attacker could use this issue to cause Irssi to crash, resulting in a denial of service. Joseph Bisch discovered that Irssi incorrectly handled settings the channel topic without specifying a sender. A malicious IRC server could use this issue to cause Irssi to crash, resulting in a denial of service. Various other issues were also addressed.