============================================================================
Ubuntu Security Notice USN-2437-1
December 09, 2014

bind9 vulnerability
============================================================================

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

- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

Bind could be made to crash if it received specially crafted network
traffic.

Software Description:
- bind9: Internet Domain Name Server

Details:

Florian Maury discovered that Bind incorrectly handled delegation. A remote
attacker could possibly use this issue to cause Bind to consume resources
and crash, resulting in a denial of service.

Update instructions:

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

Ubuntu 14.10:
  bind9                           1:9.9.5.dfsg-4.3ubuntu0.1

Ubuntu 14.04 LTS:
  bind9                           1:9.9.5.dfsg-3ubuntu0.1

Ubuntu 12.04 LTS:
  bind9                           1:9.8.1.dfsg.P1-4ubuntu0.9

Ubuntu 10.04 LTS:
  bind9                           1:9.7.0.dfsg.P1-1ubuntu0.12

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

References:
  http://www.ubuntu.com/usn/usn-2437-1
  CVE-2014-8500

Package Information:
  https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-4.3ubuntu0.1
  https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-3ubuntu0.1
  https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.9
  https://launchpad.net/ubuntu/+source/bind9/1:9.7.0.dfsg.P1-1ubuntu0.12