Ubuntu 16.04/16.10: USN-3201-1 Moderate: Bind9 DoS Vulnerability

ubuntu

February 16, 2017

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

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.

Topics Covered

security advisory denial of service Ubuntu bind9 service crash network issue

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.