USN-2925-1: Bind vulnerabilities

9 March 2016

bind9 vulnerabilities

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

  • Ubuntu 15.10
  • 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 input received by the rndc control channel. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2016-1285)

It was discovered that Bind incorrectly parsed resource record signatures for DNAME resource records. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2016-1286)

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-11ubuntu1.3
Ubuntu 14.04 LTS
bind9 - 1:9.9.5.dfsg-3ubuntu0.8
Ubuntu 12.04 LTS
bind9 - 1:9.8.1.dfsg.P1-4ubuntu0.16

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