Unbound could be made to consume resources if it received specially crafted network traffic.
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.
26 January 2015
A security issue affects these releases of Ubuntu and its derivatives:
Unbound could be made to consume resources if it received specially crafted network traffic.
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.
The problem can be corrected by updating your system to the following package versions:
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.