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.
1bd16047f6f2688935a4db4002019a5bca9dee9d10b9673b7d868bce30d1c98d