=========================================================================Ubuntu Security Notice USN-1601-1
October 10, 2012

bind9 vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

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

Software Description:
- bind9: Internet Domain Name Server

Details:

Jake Montgomery discovered that Bind incorrectly handled certain specific
combinations of RDATA. A remote attacker could use this flaw to cause Bind
to crash, resulting in a denial of service.

Update instructions:

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

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

Ubuntu 11.10:
  bind9                           1:9.7.3.dfsg-1ubuntu4.5

Ubuntu 11.04:
  bind9                           1:9.7.3.dfsg-1ubuntu2.7

Ubuntu 10.04 LTS:
  bind9                           1:9.7.0.dfsg.P1-1ubuntu0.8

Ubuntu 8.04 LTS:
  bind9                           1:9.4.2.dfsg.P2-2ubuntu0.12

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

References:
  https://ubuntu.com/security/notices/USN-1601-1
  CVE-2012-5166

Package Information:
  https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.4
  https://launchpad.net/ubuntu/+source/bind9/1:9.7.3.dfsg-1ubuntu4.5
  https://launchpad.net/ubuntu/+source/bind9/1:9.7.3.dfsg-1ubuntu2.7
  https://launchpad.net/ubuntu/+source/bind9/1:9.7.0.dfsg.P1-1ubuntu0.8
  https://launchpad.net/ubuntu/+source/bind9/1:9.4.2.dfsg.P2-2ubuntu0.12