Kyverno prior 1.11.0 resource consumption

Summaryinfo

A vulnerability described as problematic has been identified in Kyverno. This affects an unknown part. The manipulation results in resource consumption. This vulnerability is reported as CVE-2023-42813. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Kyverno. Affected is an unknown code block. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. CVE summarizes:

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 vulnerable component in Kyvernos Notary verifier. An attacker would need control over the registry from which Kyverno would fetch attestations. With such a position, the attacker could return a malicious response to Kyverno, when Kyverno would send a request to the registry. The malicious response would cause denial of service of Kyverno, such that other users' admission requests would be blocked from being processed. This is a vulnerability in a new component released in v1.11.0. The only users affected by this are those that have been building Kyverno from source at the main branch which is not encouraged. Users consuming official Kyverno releases are not affected. There are no known cases of this vulnerability being exploited in the wild.

The weakness was disclosed 11/14/2023 as GHSA-wc3x-5rfv-hh5v. The advisory is available at github.com. This vulnerability is traded as CVE-2023-42813 since 09/14/2023. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 1.11.0 eliminates this vulnerability.

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Productinfo

Name

• Kyverno

License

• open-source

Website

• Product: https://github.com/kyverno/kyverno/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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