[USN-4149-1] Unbound vulnerability

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[USN-4149-1] Unbound vulnerability

Leonidas S. Barbosa
Ubuntu Security Notice USN-4149-1
October 08, 2019

unbound vulnerability

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.

Software Description:
- 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.

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

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


Package Information:

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