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Full vulnerability report · 2024
CVE-2024-0567High confidence

Gnutls: rejects certificate chain with distributed trust

Unknown · Unknown

7.5HighCVSS 3.1
Recommended action
Within 7 days

High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

1 package state
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Ubuntu releaseSource packageVendor stateFixed versionEvidence
Ubuntu 24.04 LTSnoble · standard archivegnutls28Vendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.3.8.3-1ubuntu1Canonical record ↗Source updated 10 Sept 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
SSA-794697 · CSAF 2.0 · revision 9 · interimSiemens ProductCERTSSA-794697: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 TM MFP before V1.1
1 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
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.
Remediation
Update to V1.1 or later version
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2024-16360

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

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.

What

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

The product does not verify, or incorrectly verifies, the cryptographic signature for data.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

What

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

The product does not verify, or incorrectly verifies, the cryptographic signature for data.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may disrupt the affected service.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
a network path → Improper Verification of Cryptographic Signature → disrupt the affected service
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-347 ↗

CWE-347: Improper Verification of Cryptographic Signature. The product does not verify, or incorrectly verifies, the cryptographic signature for data.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedDenial of serviceCWE-347Public exploit reference
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-W-2024-0131GnuTLS: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in GnuTLS ausnutzen, um Informationen offenzulegen oder einen Denial of Service zu verursachen.

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0969Multiples vulnérabilités dans les produits VMware

.cve.org/CVERecord?id=CVE-2023-6597 Référence CVE CVE-2023-6779 https://www.cve.org/CVERecord?id=CVE-2023-6779 Référence CVE CVE-2023-6780 https://www.cve.org/CVERecord?id=CVE-2023-6780 Référence CVE CVE-2023-6918 https://www.cve.org/CVERecord?id=CVE-2023-6918 Référence CVE CVE-2023-7008 https://www.cve.org/CVERecord?id=CVE-2023-7008 Référence CVE CVE-2023-7104 https://www.cve.org/CVERecord?id=CVE-2023-7104 Référence CVE CVE-2024-0397 https://www.cve.org/CVERecord?id=CVE-2024-0397 Référence CVE CVE-2024-0450 https://www.cve.org/CVERecord?id=CVE-2024-0450 Référence CVE CVE-2024-0553 https://www.cve.org/CVERecord?id=CVE-2024-0553 Référence CVE CVE-2024-0567 https://www.cve.org/CVERecord?id=CVE-2024-0567 Référence CVE CVE-2024-0727 https://www.cve.org/CVERecord?id=CVE-2024-0727 Référence CVE CVE-2024-0743 https://www.cve.org/CVERecord?id=CVE-2024-0743 Référence CVE CVE-2024-0746 https://www.cve.org/CVERecord?id=CVE-2024-0746 Référence CVE CVE-2024-10041 https://www.cve.org/CVERecord?id=CVE-2024-10041 Référence CVE CVE-2024-1013 https://www.cve.org/CVERecord?id=CVE-2024-1013 Référence CVE CVE-2024-10524 https://www.cve.org/CVERecord?id=CVE-2024-10524 Référence CVE CVE-2024-10963 https://www.cve.org/CVERecord?id=CVE-2024-10963 Référence CVE CVE-2024-11053 https://www.cve.org/CVERecord?id=CVE-2024-

Official advisory
CERT-FR · French · CERTFR-2025-AVI-0756Multiples vulnérabilités dans les produits VMware

.cve.org/CVERecord?id=CVE-2023-6378 Référence CVE CVE-2023-6481 https://www.cve.org/CVERecord?id=CVE-2023-6481 Référence CVE CVE-2023-6597 https://www.cve.org/CVERecord?id=CVE-2023-6597 Référence CVE CVE-2023-6779 https://www.cve.org/CVERecord?id=CVE-2023-6779 Référence CVE CVE-2023-6780 https://www.cve.org/CVERecord?id=CVE-2023-6780 Référence CVE CVE-2023-7104 https://www.cve.org/CVERecord?id=CVE-2023-7104 Référence CVE CVE-2024-0397 https://www.cve.org/CVERecord?id=CVE-2024-0397 Référence CVE CVE-2024-0450 https://www.cve.org/CVERecord?id=CVE-2024-0450 Référence CVE CVE-2024-0553 https://www.cve.org/CVERecord?id=CVE-2024-0553 Référence CVE CVE-2024-0567 https://www.cve.org/CVERecord?id=CVE-2024-0567 Référence CVE CVE-2024-0727 https://www.cve.org/CVERecord?id=CVE-2024-0727 Référence CVE CVE-2024-0760 https://www.cve.org/CVERecord?id=CVE-2024-0760 Référence CVE CVE-2024-10041 https://www.cve.org/CVERecord?id=CVE-2024-10041 Référence CVE CVE-2024-10458 https://www.cve.org/CVERecord?id=CVE-2024-10458 Référence CVE CVE-2024-10459 https://www.cve.org/CVERecord?id=CVE-2024-10459 Référence CVE CVE-2024-10460 https://www.cve.org/CVERecord?id=CVE-2024-10460 Référence CVE CVE-2024-10461 https://www.cve.org/CVERecord?id=CVE-2024-10461 Référence CVE CVE-2024-10462 https://www.cve.org/CVERecord?id=CVE-2

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0630Multiples vulnérabilités dans IBM QRadar

.org/CVERecord?id=CVE-2023-4806 Référence CVE CVE-2023-4813 https://www.cve.org/CVERecord?id=CVE-2023-4813 Référence CVE CVE-2023-48795 https://www.cve.org/CVERecord?id=CVE-2023-48795 Référence CVE CVE-2023-51385 https://www.cve.org/CVERecord?id=CVE-2023-51385 Référence CVE CVE-2023-5156 https://www.cve.org/CVERecord?id=CVE-2023-5156 Référence CVE CVE-2023-5678 https://www.cve.org/CVERecord?id=CVE-2023-5678 Référence CVE CVE-2023-5981 https://www.cve.org/CVERecord?id=CVE-2023-5981 Référence CVE CVE-2023-6129 https://www.cve.org/CVERecord?id=CVE-2023-6129 Référence CVE CVE-2024-0553 https://www.cve.org/CVERecord?id=CVE-2024-0553 Référence CVE CVE-2024-0567 https://www.cve.org/CVERecord?id=CVE-2024-0567 Référence CVE CVE-2024-27088 https://www.cve.org/CVERecord?id=CVE-2024-27088 Référence CVE CVE-2024-27982 https://www.cve.org/CVERecord?id=CVE-2024-27982 Référence CVE CVE-2024-27983 https://www.cve.org/CVERecord?id=CVE-2024-27983 Référence CVE CVE-2024-28834 https://www.cve.org/CVERecord?id=CVE-2024-28834 Référence CVE CVE-2024-28835 https://www.cve.org/CVERecord?id=CVE-2024-28835 Référence CVE CVE-2024-28863 https://www.cve.org/CVERecord?id=CVE-2024-28863 Référence CVE CVE-2024-29041 https://www.cve.org/CVERecord?id=CVE-2024-29041 Référence CVE CVE-2024-29415 https://www.cve.org/CVERecord?id=C

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0585Multiples vulnérabilités dans les produits VMware

.cve.org/CVERecord?id=CVE-2023-5341 Référence CVE CVE-2023-5678 https://www.cve.org/CVERecord?id=CVE-2023-5678 Référence CVE CVE-2023-5981 https://www.cve.org/CVERecord?id=CVE-2023-5981 Référence CVE CVE-2023-6004 https://www.cve.org/CVERecord?id=CVE-2023-6004 Référence CVE CVE-2023-6129 https://www.cve.org/CVERecord?id=CVE-2023-6129 Référence CVE CVE-2023-6237 https://www.cve.org/CVERecord?id=CVE-2023-6237 Référence CVE CVE-2023-6918 https://www.cve.org/CVERecord?id=CVE-2023-6918 Référence CVE CVE-2023-7104 https://www.cve.org/CVERecord?id=CVE-2023-7104 Référence CVE CVE-2024-0553 https://www.cve.org/CVERecord?id=CVE-2024-0553 Référence CVE CVE-2024-0567 https://www.cve.org/CVERecord?id=CVE-2024-0567 Référence CVE CVE-2024-0727 https://www.cve.org/CVERecord?id=CVE-2024-0727 Référence CVE CVE-2024-22195 https://www.cve.org/CVERecord?id=CVE-2024-22195 Référence CVE CVE-2024-22365 https://www.cve.org/CVERecord?id=CVE-2024-22365 Référence CVE CVE-2024-25062 https://www.cve.org/CVERecord?id=CVE-2024-25062 Référence CVE CVE-2024-28757 https://www.cve.org/CVERecord?id=CVE-2024-28757 Gestion détaillée du document le 16 juillet 2024 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.f

Official advisory
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
Fixed
0:3.7.6-23.el9_3.3 < *; 0:3.7.6-21.el9_2.2 < *; v4.15.0-37 < *; v4.15.0-68 < *; v4.15.0-158 < *; v4.15.0-39 < *
Action
Update to V1.1 or later version
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 16 Jan 2024 · Last source change 20 Nov 2025, 18:09 UTC · CWE-347 · Improper Verification of Cryptographic Signature

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2024-16360
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
CWE sourceCNA
NVD statusNVD modified after enrichment

Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2024-16360↗Vendor CSAF · Siemens ProductCERT↗CISA Vulnrichment SSVC evidence↗Public exploit reference↗CVE authority or vendor reference↗Public exploit reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2024-0567 · cve.blacktree.nl