===========================================================================
Ubuntu Security Notice USN-3201-1
February 16, 2017

bind9 vulnerabilities
===========================================================================

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

- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

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

Software Description:
- bind9: Internet Domain Name Server

Details:

It was discovered that Bind incorrectly handled rewriting certain query
responses when using both DNS64 and RPZ. A remote attacker could possibly
use this issue 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 16.10:
  bind9                           1:9.10.3.dfsg.P4-10.1ubuntu1.3

Ubuntu 16.04 LTS:
  bind9                           1:9.10.3.dfsg.P4-8ubuntu1.5

Ubuntu 14.04 LTS:
  bind9                           1:9.9.5.dfsg-3ubuntu0.13

Ubuntu 12.04 LTS:
  bind9                           1:9.8.1.dfsg.P1-4ubuntu0.21

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

References:
  http://www.ubuntu.com/usn/usn-3201-1
  CVE-2017-3135

Package Information:
  https://launchpad.net/ubuntu/+source/bind9/1:9.10.3.dfsg.P4-10.1ubuntu1.3
  https://launchpad.net/ubuntu/+source/bind9/1:9.10.3.dfsg.P4-8ubuntu1.5
  https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-3ubuntu0.13
  https://launchpad.net/ubuntu/+source/bind9/1:9.8.1.dfsg.P1-4ubuntu0.21