USN-2837-1: Bind vulnerability

15 December 2015

bind9 vulnerability

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

  • Ubuntu 15.10
  • Ubuntu 15.04
  • 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 responses with malformed class attributes. A remote attacker could 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 15.10
bind9 - 1:9.9.5.dfsg-11ubuntu1.1
Ubuntu 15.04
bind9 - 1:9.9.5.dfsg-9ubuntu0.4
Ubuntu 14.04 LTS
bind9 - 1:9.9.5.dfsg-3ubuntu0.6
Ubuntu 12.04 LTS
bind9 - 1:9.8.1.dfsg.P1-4ubuntu0.14

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References