CVE-2024-0567

Publication date 16 January 2024

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

A vulnerability was found in GnuTLS, where a cockpit (which uses gnuTLS) rejects a certificate chain with distributed trust. This issue occurs when validating a certificate chain with cockpit-certificate-ensure. This flaw allows an unauthenticated, remote client or attacker to initiate a denial of service attack.

Read the notes from the security team

Status

Package Ubuntu Release Status
gnutls28 24.04 LTS noble
Fixed 3.8.3-1ubuntu1
23.10 mantic
Fixed 3.8.1-4ubuntu1.2
23.04 lunar
Fixed 3.7.8-5ubuntu1.2
22.04 LTS jammy
Fixed 3.7.3-4ubuntu1.4
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Ignored end of standard support

Notes

mdeslaur

The code is different in focal and older and the reproducer doesn't appear to crash the older version of GnuTLS. Marking as not-affected.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
gnutls28

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H