USN-6998-1: Unbound vulnerabilities

Published Sep 11, 2024
·
Updated

It was discovered that Unbound incorrectly handled string comparisons, which could lead to a NULL pointer dereference. An attacker could potentially use this issue to cause a denial of service. (CVE-2024-43167) It was discovered that Unbound incorrectly handled memory in cfgmarkports, which could lead to a heap buffer overflow. A local attacker could potentially use this issue to cause a denial of service or execute arbitrary code. (CVE-2024-43168)

Affected Software

36 affected componentsFixes available
All of the following
ubuntu/libunbound8<1.19.2-1ubuntu3.2
1.19.2-1ubuntu3.2
Ubuntu Ubuntu=24.04
All of the following
ubuntu/unbound<1.19.2-1ubuntu3.2
1.19.2-1ubuntu3.2
Ubuntu Ubuntu=24.04
All of the following
ubuntu/unbound-host<1.19.2-1ubuntu3.2
1.19.2-1ubuntu3.2
Ubuntu Ubuntu=24.04
All of the following
ubuntu/libunbound8<1.13.1-1ubuntu5.7
1.13.1-1ubuntu5.7
Ubuntu Ubuntu=22.04
All of the following
ubuntu/unbound<1.13.1-1ubuntu5.7
1.13.1-1ubuntu5.7
Ubuntu Ubuntu=22.04
All of the following
ubuntu/unbound-host<1.13.1-1ubuntu5.7
1.13.1-1ubuntu5.7
Ubuntu Ubuntu=22.04
All of the following
ubuntu/libunbound8<1.9.4-2ubuntu1.8
1.9.4-2ubuntu1.8
Ubuntu Ubuntu=20.04
All of the following
ubuntu/unbound<1.9.4-2ubuntu1.8
1.9.4-2ubuntu1.8
Ubuntu Ubuntu=20.04
All of the following
ubuntu/unbound-host<1.9.4-2ubuntu1.8
1.9.4-2ubuntu1.8
Ubuntu Ubuntu=20.04
All of the following
ubuntu/libunbound2<1.6.7-1ubuntu2.6+esm2
1.6.7-1ubuntu2.6+esm2
Ubuntu Ubuntu=18.04
All of the following
ubuntu/unbound<1.6.7-1ubuntu2.6+esm2
1.6.7-1ubuntu2.6+esm2
Ubuntu Ubuntu=18.04
All of the following
ubuntu/unbound-host<1.6.7-1ubuntu2.6+esm2
1.6.7-1ubuntu2.6+esm2
Ubuntu Ubuntu=18.04
All of the following
ubuntu/libunbound2<1.5.8-1ubuntu1.1+esm1
1.5.8-1ubuntu1.1+esm1
Ubuntu Ubuntu=16.04
All of the following
ubuntu/unbound<1.5.8-1ubuntu1.1+esm1
1.5.8-1ubuntu1.1+esm1
Ubuntu Ubuntu=16.04
All of the following
ubuntu/unbound-host<1.5.8-1ubuntu1.1+esm1
1.5.8-1ubuntu1.1+esm1
Ubuntu Ubuntu=16.04
All of the following
ubuntu/libunbound2<1.4.22-1ubuntu4.14.04.3+esm1
1.4.22-1ubuntu4.14.04.3+esm1
Ubuntu Ubuntu=14.04
All of the following
ubuntu/unbound<1.4.22-1ubuntu4.14.04.3+esm1
1.4.22-1ubuntu4.14.04.3+esm1
Ubuntu Ubuntu=14.04
All of the following
ubuntu/unbound-host<1.4.22-1ubuntu4.14.04.3+esm1
1.4.22-1ubuntu4.14.04.3+esm1
Ubuntu Ubuntu=14.04

Event History

Sep 11, 2024
Advisory Published
via Ubuntu·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of USN-6998-1?

The severity of USN-6998-1 is classified as a potential denial of service vulnerability.

2

How do I fix USN-6998-1?

To fix USN-6998-1, update your Unbound package to version 1.19.2-1ubuntu3.2 or higher on Ubuntu 24.04.

3

Which versions of Unbound are affected by USN-6998-1?

USN-6998-1 affects Unbound versions prior to 1.19.2-1ubuntu3.2 on Ubuntu 24.04 and older versions on earlier Ubuntu releases.

4

What is CVE-2024-43167 in relation to USN-6998-1?

CVE-2024-43167 is the identifier for the vulnerability addressed in USN-6998-1, which could lead to a NULL pointer dereference.

5

What are the symptoms of the vulnerability outlined in USN-6998-1?

The primary symptom of the USN-6998-1 vulnerability is a potential denial of service condition due to improper handling of string comparisons.

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