Debian Linux Security Advisory 1982-1 – Julien Cristau discovered that hybserv, a daemon running IRC services for IRCD-Hybrid, is prone to a denial of service attack via the commands option.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/85763/dsa-1982-1.txt
Source: https://packetstormsecurity.com/files/85763/Debian-Linux-Security-Advisory-1982-1.html