USN-4149-1: Unbound vulnerability
8 October 2019
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 19.04
Unbound could be made to crash if it received a specially crafted NOTIFY query.
- unbound - validating, recursive, caching DNS resolver
It was discovered that Unbound incorrectly handled certain NOTIFY queries. An attacker could possibly use this issue to cause 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.