Ubuntu Security Notice USN-2341-1
8th September, 2014
cups vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS
Summary
CUPS could be made to expose sensitive information, leading to privilege
escalation.
Software description
- cups
– Common UNIX Printing System(tm)
Details
Salvatore Bonaccorso discovered that the CUPS web interface incorrectly
validated permissions and incorrectly handled symlinks. An attacker could
possibly use this issue to bypass file permissions and read arbitrary
files, possibly leading to a privilege escalation.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 14.04 LTS:
-
cups
1.7.2-0ubuntu1.2
- Ubuntu 12.04 LTS:
-
cups
1.5.3-0ubuntu8.5
- Ubuntu 10.04 LTS:
-
cups
1.4.3-1ubuntu1.13
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.