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Vulnerability record · CVE-2024-0567 · published 16 January 2024

CVE-2024-0567: Gnutls improper verification of cryptographic signature vulnerability

Gnu · Gnutls

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.

7.5 CVSS 3.1 High EPSS 1.4% · top 28.2% CWE-347 · Improper verification of cryptographic signature
7.5CVSS 3.1 base score
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
20References, 4 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2024:0533 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:1082 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:1383
https://access.redhat.com/errata/RHSA-2024:2094
https://access.redhat.com/security/cve/CVE-2024-0567 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2258544 ExploitIssue TrackingThird Party Advisory
https://gitlab.com/gnutls/gnutls/-/issues/1521 ExploitIssue TrackingPatchVendor Advisory
https://lists.gnupg.org/pipermail/gnutls-help/2024-January/004841.html Mailing List
http://www.openwall.com/lists/oss-security/2024/01/19/3
https://access.redhat.com/errata/RHSA-2024:0533 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:1082 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:1383
https://access.redhat.com/errata/RHSA-2024:2094
https://access.redhat.com/security/cve/CVE-2024-0567 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2258544 ExploitIssue TrackingThird Party Advisory
https://gitlab.com/gnutls/gnutls/-/issues/1521 ExploitIssue TrackingPatchVendor Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/7ZEIOLORQ7N6WRPFXZSYDL2MC
https://lists.fedoraproject.org/archives/list/[email protected]/message/GNXKVR5YNUEBNHAHM5GSYKBZX
https://lists.gnupg.org/pipermail/gnutls-help/2024-January/004841.html Mailing List
https://security.netapp.com/advisory/ntap-20240202-0011/

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Source: NIST National Vulnerability Database (record CVE-2024-0567), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.