USN-4149-1: Unbound vulnerability
unbound vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 19.04
Summary
Unbound could be made to crash if it received a specially crafted
NOTIFY query.
Software Description
- unbound – validating, recursive, caching DNS resolver
Details
It was discovered that Unbound incorrectly handled certain NOTIFY queries.
An attacker could possibly use this issue to cause a denial of service.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 19.04
- libunbound8 – 1.9.0-2ubuntu0.1
- unbound – 1.9.0-2ubuntu0.1
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.
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