CVE-2024-0567

2024-01-1600:00:00

ubuntu.com

gnutls

vulnerability

remote attackers

certificate chain

denial of service

unauthenticated

unix

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

5.8

Confidence

High

EPSS

0.001

Percentile

46.5%

JSON

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.

Bugs

Notes

Author	Note
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.

OSVersionArchitecturePackageVersionFilename
ubuntu22.04noarchgnutls28< 3.7.3-4ubuntu1.4UNKNOWN
ubuntu23.04noarchgnutls28< 3.7.8-5ubuntu1.2UNKNOWN
ubuntu23.10noarchgnutls28< 3.8.1-4ubuntu1.2UNKNOWN
ubuntu24.04noarchgnutls28< 3.8.3-1ubuntu1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	22.04	noarch	gnutls28	< 3.7.3-4ubuntu1.4	UNKNOWN
ubuntu	23.04	noarch	gnutls28	< 3.7.8-5ubuntu1.2	UNKNOWN
ubuntu	23.10	noarch	gnutls28	< 3.8.1-4ubuntu1.2	UNKNOWN
ubuntu	24.04	noarch	gnutls28	< 3.8.3-1ubuntu1	UNKNOWN