USN-1654-1: CUPS vulnerability

Releases

• Ubuntu 12.10
• Ubuntu 12.04
• Ubuntu 11.10
• Ubuntu 10.04
• Ubuntu 8.04

Packages

• cups - Common UNIX Printing System(tm)
• cupsys - Common UNIX Printing System(tm)

Details

It was discovered that users in the lpadmin group could modify certain CUPS
configuration options to escalate privileges. An attacker could use this to
potentially gain root privileges.

Update instructions

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

Ubuntu 8.04

• cupsys - 1.3.7-1ubuntu3.16

Ubuntu 12.10

• cups - 1.6.1-0ubuntu11.3

Ubuntu 12.04

• cups - 1.5.3-0ubuntu5.1

Ubuntu 11.10

• cups - 1.5.0-8ubuntu7.3

Ubuntu 10.04

• cups - 1.4.3-1ubuntu1.9

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

This update adds the new cups-files.conf configuration file for privileged
CUPS settings. In certain customized environments, these settings may need
to be manually moved to this new file. For more information, please see the
updated documentation installed with this package and inspect the CUPS
error log.

References

• CVE-2012-5519