USN-563-1: CUPS vulnerabilities

9 January 2008

cupsys vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 7.10
  • Ubuntu 7.04
  • Ubuntu 6.10
  • Ubuntu 6.06 LTS

Software Description

  • cupsys

Details

Wei Wang discovered that the SNMP discovery backend did not correctly calculate the length of strings. If a user were tricked into scanning for printers, a remote attacker could send a specially crafted packet and possibly execute arbitrary code.

Elias Pipping discovered that temporary files were not handled safely in certain situations when converting PDF to PS. A local attacker could cause a denial of service.

Update instructions

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

Ubuntu 7.10
cupsys - 1.3.2-1ubuntu7.3
Ubuntu 7.04
cupsys - 1.2.8-0ubuntu8.2
Ubuntu 6.10
cupsys - 1.2.4-2ubuntu3.2
Ubuntu 6.06 LTS
cupsys - 1.2.2-0ubuntu0.6.06.6

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system upgrade is sufficient to effect the necessary changes.

References