USN-2484-1: Unbound vulnerability

26 January 2015

Unbound could be made to consume resources if it received specially crafted network traffic.



  • unbound - validating, recursive, caching DNS resolver


Florian Maury discovered that Unbound incorrectly handled delegation. A
remote attacker could possibly use this issue to cause Unbound to consume
resources, resulting in a denial of service.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.10
Ubuntu 14.04

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