Ubuntu 11.04 USN-1207-1 Critical: CUPS DoS Threat Details

ubuntu

September 14, 2011

An attacker could send crafted print jobs to CUPS and cause it to crash or run programs.

Summary

An attacker could send crafted print jobs to CUPS and cause it to crash or

run programs.

Software Description:

- cups: Common UNIX Printing System(tm) - server

- cupsys: Common UNIX Printing System(tm) - server

Details:

Tomas Hoger discovered that the CUPS image library incorrectly handled LZW

streams. A remote attacker could use this flaw to cause a denial of service

or possibly execute arbitrary code.

Topics Covered

security advisory denial of service security issue system update cups ubuntu software bug

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 11.04:
  libcupsimage2                   1.4.6-5ubuntu1.4

Ubuntu 10.10:
  libcupsimage2                   1.4.4-6ubuntu2.4

Ubuntu 10.04 LTS:
  libcupsimage2                   1.4.3-1ubuntu1.5

Ubuntu 8.04 LTS:
  libcupsimage2                   1.3.7-1ubuntu3.13

In general, a standard system update will make all the necessary changes.