Vulnerability in GNU Gnutls
CVE-2024-0567
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.014 (71.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: -0.000
Affected products
- GNU Gnutls
- NetApp Active Iq Unified Manager
- Debian Linux — versions 11.0
- Fedoraproject Fedora — versions 38, 39
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9 — versions 0:3.7.6-23.el9_3.3
- Red Hat Enterprise Linux 9.2 Extended Update Support — versions 0:3.7.6-21.el9_2.2
- Red Hat Openshift Container Platform 3.11
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2024:0533 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2024:1082 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2024:1383 (vendor-advisory)
- access.redhat.com/errata/RHSA-2024:2094 (vendor-advisory)
- access.redhat.com/security/cve/CVE-2024-0567 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Exploit, Third Party Advisory, Issue Tracking)
- gitlab.com/gnutls/gnutls/-/issues/1521 (Exploit, Patch, Issue Tracking, Vendor Advisory)
- lists.gnupg.org/pipermail/gnutls-help/2024-January/004841.html (Mailing List)
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2024-0567?
- CVE-2024-0567 is a high-severity vulnerability in GNU Gnutls, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.5/10. Published 2024-01-16.
- How severe is CVE-2024-0567?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2024-0567 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.