CVE-2024-0567
Published: 16 January 2024
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.
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. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
gnutls28 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
|
| focal |
Not vulnerable
(3.6.13-2ubuntu1.9)
|
|
| jammy |
Released
(3.7.3-4ubuntu1.4)
|
|
| lunar |
Released
(3.7.8-5ubuntu1.2)
|
|
| mantic |
Released
(3.8.1-4ubuntu1.2)
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Released
(3.8.3-1)
|
|
| xenial |
Not vulnerable
|
|
|
Patches: upstream: https://gitlab.com/gnutls/gnutls/-/commit/9edbdaa84e38b1bfb53a7d72c1de44f8de373405 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| 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 |
References
- https://gnutls.org/security-new.html#GNUTLS-SA-2024-01-09
- https://lists.gnupg.org/pipermail/gnutls-help/2024-January/004841.html
- https://access.redhat.com/security/cve/CVE-2024-0567
- https://ubuntu.com/security/notices/USN-6593-1
- https://www.cve.org/CVERecord?id=CVE-2024-0567
- NVD
- Launchpad
- Debian