Advisory Published

USN-6791-1: Unbound vulnerability

First published: Tue May 28 2024(Updated: )

It was discovered that Unbound could take part in a denial of service amplification attack known as DNSBomb. This update introduces certain resource limits to make the impact from Unbound significantly lower.

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/libunbound8<1.19.2-1ubuntu3.1
1.19.2-1ubuntu3.1
Ubuntu Ubuntu=24.04
All of
ubuntu/unbound<1.19.2-1ubuntu3.1
1.19.2-1ubuntu3.1
Ubuntu Ubuntu=24.04
All of
ubuntu/libunbound8<1.17.1-2ubuntu0.2
1.17.1-2ubuntu0.2
Ubuntu Ubuntu=23.10
All of
ubuntu/unbound<1.17.1-2ubuntu0.2
1.17.1-2ubuntu0.2
Ubuntu Ubuntu=23.10
All of
ubuntu/libunbound8<1.13.1-1ubuntu5.5
1.13.1-1ubuntu5.5
Ubuntu Ubuntu=22.04
All of
ubuntu/unbound<1.13.1-1ubuntu5.5
1.13.1-1ubuntu5.5
Ubuntu Ubuntu=22.04
All of
ubuntu/libunbound8<1.9.4-2ubuntu1.6
1.9.4-2ubuntu1.6
Ubuntu Ubuntu=20.04
All of
ubuntu/unbound<1.9.4-2ubuntu1.6
1.9.4-2ubuntu1.6
Ubuntu Ubuntu=20.04

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