[USN-3842-1] CUPS vulnerability

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[USN-3842-1] CUPS vulnerability

Marc Deslauriers-3
==========================================================================
Ubuntu Security Notice USN-3842-1
December 10, 2018

cups vulnerability
==========================================================================

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

- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

CUPS could be made to expose sensitive information.

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

Details:

Jann Horn discovered that CUPS incorrectly handled session cookie
randomness. A remote attacker could possibly use this issue to perform
cross-site request forgery (CSRF) attacks.

Update instructions:

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

Ubuntu 18.10:
  cups                            2.2.8-5ubuntu1.1

Ubuntu 18.04 LTS:
  cups                            2.2.7-1ubuntu2.2

Ubuntu 16.04 LTS:
  cups                            2.1.3-4ubuntu0.6

Ubuntu 14.04 LTS:
  cups                            1.7.2-0ubuntu1.11

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

References:
  https://usn.ubuntu.com/usn/usn-3842-1
  CVE-2018-4700

Package Information:
  https://launchpad.net/ubuntu/+source/cups/2.2.8-5ubuntu1.1
  https://launchpad.net/ubuntu/+source/cups/2.2.7-1ubuntu2.2
  https://launchpad.net/ubuntu/+source/cups/2.1.3-4ubuntu0.6
  https://launchpad.net/ubuntu/+source/cups/1.7.2-0ubuntu1.11


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