# CVE-2024-0567: Gnutls: rejects certificate chain with distributed trust

Status: published. Published: 2024-01-16. Updated: 2026-11-05.

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.

## Remediation

- workaround: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. (source: CNA: redhat)

## Affected products and versions

-  /  (gnutls): ≥ 3.8.0; < 3.8.3 (affected, semver). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (gnutls): ≥ 0:3.7.6-23.el9_3.3; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9.2 Extended Update Support (gnutls): ≥ 0:3.7.6-21.el9_2.2; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/cephcsi-rhel9): ≥ v4.15.0-37; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/mcg-core-rhel9): ≥ v4.15.0-68; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/mcg-operator-bundle): ≥ v4.15.0-158; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/mcg-rhel9-operator): ≥ v4.15.0-39; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/ocs-client-console-rhel9): ≥ v4.15.0-58; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/ocs-client-operator-bundle): ≥ v4.15.0-158; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/ocs-client-rhel9-operator): ≥ v4.15.0-13; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/ocs-metrics-exporter-rhel9): ≥ v4.15.0-81; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/ocs-operator-bundle): ≥ v4.15.0-158; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/ocs-rhel9-operator): ≥ v4.15.0-79; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-cli-rhel9): ≥ v4.15.0-22; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-console-rhel9): ≥ v4.15.0-57; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-cosi-sidecar-rhel9): ≥ v4.15.0-6; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-csi-addons-operator-bundle): ≥ v4.15.0-158; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-csi-addons-rhel9-operator): ≥ v4.15.0-15; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-csi-addons-sidecar-rhel9): ≥ v4.15.0-15; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-multicluster-console-rhel9): ≥ v4.15.0-54; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-multicluster-operator-bundle): ≥ v4.15.0-158; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-multicluster-rhel9-operator): ≥ v4.15.0-10; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-must-gather-rhel9): ≥ v4.15.0-26; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-operator-bundle): ≥ v4.15.0-158; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odf-rhel9-operator): ≥ v4.15.0-19; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odr-cluster-operator-bundle): ≥ v4.15.0-158; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odr-hub-operator-bundle): ≥ v4.15.0-158; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/odr-rhel9-operator): ≥ v4.15.0-21; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHODF-4.15-RHEL-9 (odf4/rook-ceph-rhel9-operator): ≥ v4.15.0-103; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/cluster-logging-operator-bundle): ≥ v5.8.6-22; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/cluster-logging-rhel9-operator): ≥ v5.8.6-11; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/elasticsearch6-rhel9): ≥ v6.8.1-407; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/elasticsearch-operator-bundle): ≥ v5.8.6-19; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/elasticsearch-proxy-rhel9): ≥ v1.0.0-479; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/elasticsearch-rhel9-operator): ≥ v5.8.6-7; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/eventrouter-rhel9): ≥ v0.4.0-247; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/fluentd-rhel9): ≥ v5.8.6-5; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/log-file-metric-exporter-rhel9): ≥ v1.1.0-227; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/logging-curator5-rhel9): ≥ v5.8.1-470; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/logging-loki-rhel9): ≥ v2.9.6-14; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/logging-view-plugin-rhel9): ≥ v5.8.6-2; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/loki-operator-bundle): ≥ v5.8.6-24; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/loki-rhel9-operator): ≥ v5.8.6-10; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/lokistack-gateway-rhel9): ≥ v0.1.0-525; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/opa-openshift-rhel9): ≥ v0.1.0-224; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / RHOL-5.8-RHEL-9 (openshift-logging/vector-rhel9): ≥ v0.28.1-56; < * (unaffected, rpm). Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 6 (gnutls): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 7 (cockpit): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 7 (gnutls): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (cockpit): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (gnutls): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (cockpit): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat OpenShift Container Platform 3.11 (cockpit): Version range not reported. Source: CNA: redhat
- Siemens / SIMATIC S7-1500 TM MFP - GNU/Linux subsystem: ≥ 0; < V1.1 (affected, custom). Source: ADP: siemens-SADP

## Severity and prioritization

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H; source: CNA: redhat

- CISA KEV: No listing in collected sources

- EPSS: 1.39% as of 2026-11-04; percentile 72.42%

- SSVC: exploitation poc; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-347

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/errata/RHSA-2024:0533 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2024:1082 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2024:1383 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/errata/RHSA-2024:2094 (CNA: redhat; vendor-advisory, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2024-0567 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2258544 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://gitlab.com/gnutls/gnutls/-/issues/1521 (CNA: redhat)

- https://lists.gnupg.org/pipermail/gnutls-help/2024-January/004841.html (CNA: redhat)

- http://www.openwall.com/lists/oss-security/2024/01/19/3 (ADP: CVE; x_transferred)

- https://access.redhat.com/errata/RHSA-2024:0533 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2024:1082 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2024:1383 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/errata/RHSA-2024:2094 (ADP: CVE; vendor-advisory, x_refsource_REDHAT, x_transferred)

- https://access.redhat.com/security/cve/CVE-2024-0567 (ADP: CVE; vdb-entry, x_refsource_REDHAT, x_transferred)

- https://bugzilla.redhat.com/show_bug.cgi?id=2258544 (ADP: CVE; issue-tracking, x_refsource_REDHAT, x_transferred)

- https://gitlab.com/gnutls/gnutls/-/issues/1521 (ADP: CVE; x_transferred)

- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7ZEIOLORQ7N6WRPFXZSYDL2MC4LP7VFV/ (ADP: CVE; x_transferred)

- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNXKVR5YNUEBNHAHM5GSYKBZX4W2HMN2/ (ADP: CVE; x_transferred)

- https://lists.gnupg.org/pipermail/gnutls-help/2024-January/004841.html (ADP: CVE; x_transferred)

- https://security.netapp.com/advisory/ntap-20240202-0011/ (ADP: CVE; x_transferred)

- https://cert-portal.siemens.com/productcert/html/ssa-794697.html (ADP: siemens-SADP)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2024-0567; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2024-0567; retrieved 2026-11-05; source updated Not reported

Revision: f61d69ca154aaa8d2287ef1735ab66bd60b8a6610047e7eafff6501c6643284d

Canonical: https://y2.dev/cve/CVE-2024-0567

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