SARA / Free Tools / CVE / CVE-2023-42816

CVE-2023-42816 — Kyverno is a policy engine designed for Kubernetes

Kyverno is a policy engine designed for Kubernetes. A security vulnerability was found in Kyverno where an attacker could cause denial of service of Kyverno. The vulnerability was in Kyvernos Notary verifier. An attacker would need control over the registry from which Kyverno wou

CVSS
6.1 MEDIUM
EPSS
22.00% (top 55.90%)
CWE
CWE-345
Published
2023-11-13T20:23:16.248Z
Last modified
2024-08-02T19:30:24.686Z
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:H

01What is this vulnerability?

Kyverno is a policy engine designed for Kubernetes. A security vulnerability was found in Kyverno where an attacker could cause denial of service of Kyverno. The vulnerability was in Kyvernos Notary verifier. An attacker would need control over the registry from which Kyverno would fetch signatures. With such a position, the attacker could return a malicious response to Kyverno, when Kyverno…

02Affected products

VendorProductVersions
kyvernokyverno>= 80d139bb5d1d9d7e907abe851b97dc73821a5be2, < fec2992e3f9fcd6b9c62267522c09b182e7df73b

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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