USN-1657-1: Bind vulnerability

Ubuntu Security Notice USN-1657-1

6th December, 2012

bind9 vulnerability

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

  • Ubuntu 12.10
  • Ubuntu 12.04 LTS


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

Software description

  • bind9 - Internet Domain Name Server


It was discovered that Bind incorrectly handled certain crafted queries
when DNS64 was enabled. 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 version:

Ubuntu 12.10:
bind9 1:9.8.1.dfsg.P1-4.2ubuntu3.1
Ubuntu 12.04 LTS:
bind9 1:9.8.1.dfsg.P1-4ubuntu0.5

To update your system, please follow these instructions:

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