Ubuntu: 2082-1: CUPS vulnerability
Posted by Benjamin D. Thomas   
Ubuntu CUPS could be made to expose sensitive information.
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Ubuntu Security Notice USN-2082-1
January 15, 2014

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

- Ubuntu 13.10
- Ubuntu 13.04
- Ubuntu 12.10

Summary:

CUPS could be made to expose sensitive information.

Software Description:
- cups: Common UNIX Printing System(tm)

Details:

Jann Horn discovered that the CUPS lppasswd tool incorrectly read a user
configuration file in certain configurations. A local attacker could use
this to read sensitive information from certain files, bypassing access
restrictions.

Update instructions:

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

Ubuntu 13.10:
  cups-client                     1.7.0~rc1-0ubuntu5.2

Ubuntu 13.04:
  cups-client                     1.6.2-1ubuntu8

Ubuntu 12.10:
  cups-client                     1.6.1-0ubuntu11.5

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

References:
  http://www.ubuntu.com/usn/usn-2082-1
  CVE-2013-6891

Package Information:
  https://launchpad.net/ubuntu/+source/cups/1.7.0~rc1-0ubuntu5.2
  https://launchpad.net/ubuntu/+source/cups/1.6.2-1ubuntu8
  https://launchpad.net/ubuntu/+source/cups/1.6.1-0ubuntu11.5