Debian Security Advisory 1810-1 – Anibal Sacco discovered that cups, a general printing system for UNIX systems, suffers from null pointer dereference because of its handling of two consecutive IPP packets with certain tag attributes that are treated as IPP_TAG_UNSUPPORTED tags. This allows unauthenticated attackers to perform denial of service attacks by crashing the cups daemon.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/78033/dsa-1810-1.txt
Source: https://packetstormsecurity.com/files/78033/Debian-Linux-Security-Advisory-1810-1.html