[USN-4149-1] Unbound vulnerability
Leonidas S. Barbosa
leo.barbosa at canonical.com
Tue Oct 8 13:15:18 UTC 2019
==========================================================================
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
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
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4149-1
CVE-2019-16866
Package Information:
https://launchpad.net/ubuntu/+source/unbound/1.9.0-2ubuntu0.1
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