bind9 vulnerability

Related Vulnerabilities: CVE-2015-4620  

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

Breno Silveira Soares discovered that Bind incorrectly handled certain zone data when configured to perform DNSSEC validation. A remote attacker could use this issue with specially crafted zone data to cause Bind to crash, resulting in a denial of service.

7 July 2015

bind9 vulnerability

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

  • Ubuntu 15.04
  • Ubuntu 14.10
  • 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

Breno Silveira Soares discovered that Bind incorrectly handled certain zone data when configured to perform DNSSEC validation. A remote attacker could use this issue with specially crafted zone data 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 15.04
bind9 - 1:9.9.5.dfsg-9ubuntu0.1
Ubuntu 14.10
bind9 - 1:9.9.5.dfsg-4.3ubuntu0.3
Ubuntu 14.04 LTS
bind9 - 1:9.9.5.dfsg-3ubuntu0.3
Ubuntu 12.04 LTS
bind9 - 1:9.8.1.dfsg.P1-4ubuntu0.11

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