Gnutls: rejects certificate chain with distributed trust
Priority HIGH 72CWE-347Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 6 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-347.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01392 72nd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Partial gnutls: 3.8.3Red Hat: 4 advisoriesRed Hat: 6 fixed, 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | gnutls | 3.8.0 to before 3.8.3 | 3.8.3 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | 3.7.6-23.el9_3.3 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | 3.7.6-23.el9_3.3 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support | — | 3.7.6-21.el9_2.2 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-37 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-68 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-158 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-39 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-58 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-158 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-13 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-81 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-158 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-79 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-22 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-57 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-6 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-158 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-15 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-15 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-54 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-158 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-10 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-26 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-158 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-19 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-158 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-158 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-21 | Patch available | CNA |
| Red Hat | RHODF-4.15-RHEL-9 | — | v4.15.0-103 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v5.8.6-22 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v5.8.6-11 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v6.8.1-407 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v5.8.6-19 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v1.0.0-479 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v5.8.6-7 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v0.4.0-247 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v5.8.6-5 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v1.1.0-227 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v5.8.1-470 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v2.9.6-14 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v5.8.6-2 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v5.8.6-24 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v5.8.6-10 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v0.1.0-525 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v0.1.0-224 | Patch available | CNA |
| Red Hat | RHOL-5.8-RHEL-9 | — | v0.28.1-56 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | — | Not affected | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | — | Not affected | CNA |
| Red Hat | Red Hat OpenShift Container Platform 3.11 | — | — | Not affected | CNA |
- gnutls Vendor— Affected 3.8.0 to before 3.8.3 Fixed in 3.8.3 Patch available CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 3.7.6-23.el9_3.3 Patch available CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 3.7.6-23.el9_3.3 Patch available CNA
- Red Hat Enterprise Linux 9.2 Extended Update Support VendorRed Hat Affected — Fixed in 3.7.6-21.el9_2.2 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-37 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-68 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-158 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-39 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-58 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-158 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-13 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-81 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-158 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-79 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-22 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-57 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-6 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-158 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-15 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-15 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-54 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-158 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-10 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-26 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-158 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-19 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-158 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-158 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-21 Patch available CNA
- RHODF-4.15-RHEL-9 VendorRed Hat Affected — Fixed in v4.15.0-103 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v5.8.6-22 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v5.8.6-11 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v6.8.1-407 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v5.8.6-19 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v1.0.0-479 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v5.8.6-7 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v0.4.0-247 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v5.8.6-5 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v1.1.0-227 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v5.8.1-470 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v2.9.6-14 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v5.8.6-2 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v5.8.6-24 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v5.8.6-10 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v0.1.0-525 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v0.1.0-224 Patch available CNA
- RHOL-5.8-RHEL-9 VendorRed Hat Affected — Fixed in v0.28.1-56 Patch available CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in — Not affected CNA
- Red Hat OpenShift Container Platform 3.11 VendorRed Hat Affected — Fixed in — Not affected CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:* | 3.7.0 to before 3.8.3 | Vulnerable | GNU |
| cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* | 38 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* | 39 | Vulnerable | Fedoraproject |
| cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable | Debian |
- cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:* Versions 3.7.0 to before 3.8.3 Vulnerable ·GNU
- cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* Versions 38 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* Versions 39 Vulnerable ·Fedoraproject
- cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
Remediation
- Fix · CNA gnutls Fixed in 3.8.3
Red Hat 4 advisories
- RHSA-2024:2094 Released 2024-05-01 · Red Hat rating Moderatesecurity update Logging for Red Hat OpenShift - 5.8.6
- RHOL 5.8 for RHEL 9 openshift-logging/cluster-logging-operator-bundle, openshift-logging/cluster-logging-rhel9-operator, openshift-logging/elasticsearch-operator-bundle +14
- RHSA-2024:1383 Released 2024-03-19 · Red Hat rating ImportantRed Hat OpenShift Data Foundation 4.15.0 security, enhancement, & bug fix update
- RHODF 4.15 for RHEL 9 odf4/cephcsi-rhel9, odf4/mcg-core-rhel9, odf4/mcg-operator-bundle +23
- RHSA-2024:1082 Released 2024-03-05 · Red Hat rating Moderategnutls security update
- Red Hat Enterprise Linux AppStream EUS (v.9.2) gnutls-c++-3.7.6-21.el9_2.2, gnutls-dane-3.7.6-21.el9_2.2, gnutls-devel-3.7.6-21.el9_2.2 +1
- Red Hat Enterprise Linux BaseOS EUS (v.9.2) gnutls-3.7.6-21.el9_2.2
Show 1 more Red Hat advisories
- RHSA-2024:0533 Released 2024-01-29 · Red Hat rating Moderategnutls security update
- Red Hat Enterprise Linux AppStream (v. 9) gnutls-c++-3.7.6-23.el9_3.3, gnutls-dane-3.7.6-23.el9_3.3, gnutls-devel-3.7.6-23.el9_3.3 +1
- Red Hat Enterprise Linux BaseOS (v. 9) gnutls-3.7.6-23.el9_3.3
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Red Hat RHODF-4.15-RHEL-9, RHOL-5.8-RHEL-9 and 5 more products — RHSA-2024:1082
2 records Highest priority Priority HIGH 1 HIGH, 1 MEDIUM
Other records, highest priority first
- TI-2024-00511 Gnutls: incomplete fix for cve-2023-5981Priority MEDIUM 42
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| RHODF 4.15 for RHEL 9 | Fixed | RHSA-2024:1383 |
| RHOL 5.8 for RHEL 9 | Fixed | RHSA-2024:2094 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:0533 |
| Red Hat Enterprise Linux AppStream EUS (v.9.2) | Fixed | RHSA-2024:1082 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2024:0533 |
| Red Hat Enterprise Linux BaseOS EUS (v.9.2) | Fixed | RHSA-2024:1082 |
Not affected: 3 products
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 3.11
Timeline
- 2026-10-02 Threatist record created from CVE-2024-0567
- 2026-10-03 Alias added: GHSA-mcx8-9rrj-7qxm
References
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Sources
- CVE-2024-0567 · CVE Program
- CVE-2024-0567 · NVD
- FIRST EPSS
- GHSA-mcx8-9rrj-7qxm · GitHub Advisory Database · CC BY 4.0
- CVE-2024-0567 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences