Debian: DSA-1810-1 Moderate: CUPS Denial Of Service Fix

debian

June 2, 2009

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 cer...

Topics Covered

security advisory denial of service debian null pointer cups

Summary

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 attackersto perform denial of service attacks by crashing the cups daemon.

For the oldstable distribution (etch), this problem has been fixed in
version 1.2.7-4+etch8 of cupsys.

For the stable distribution (lenny), this problem has been fixed in
version 1.3.8-1+lenny6 of cups.

For the testing distribution (squeeze), this problem will be fixed soon.

For the unstable distribution (sid), this problem will be fixed soon.

We recommend that you upgrade your cups/cupsys packages.

Upgrade instructions
- --------------------

wget url
will fetch the file for you
dpkg -i file.deb
will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
wi...