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CVE-2022-36049

7.7 · HIGH

Flux2 is a tool for keeping Kubernetes clusters in sync with sources of configuration, and Flux's helm-controller is a Kubernetes operator that allows one to declaratively manage Helm chart releases.

Published Sep 7, 2022CWE-400EPSS 1.45%

Overview

CVE-2022-36049 is a high-severity vulnerability. It was published on September 7, 2022 and has a CVSS 3.1 base score of 7.7 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Flux2 is a tool for keeping Kubernetes clusters in sync with sources of configuration, and Flux's helm-controller is a Kubernetes operator that allows one to declaratively manage Helm chart releases. Helm controller is tightly integrated with the Helm SDK. A vulnerability found in the Helm SDK that affects flux2 v0.0.17 until v0.32.0 and helm-controller v0.0.4 until v0.23.0 allows for specific data inputs to cause high memory consumption. In some platforms, this could cause the controller to panic and stop processing reconciliations. In a shared cluster multi-tenancy environment, a tenant could create a HelmRelease that makes the controller panic, denying all other tenants from their Helm releases being reconciled. Patches are available in flux2 v0.32.0 and helm-controller v0.23.0.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refbugs.chromium.org/p/oss-fuzz/issues/detail?id=44996Refbugs.chromium.org/p/oss-fuzz/issues/detail?id=48360GitHubgithub.com/fluxcd/flux2/security/advisories/GHSA-p2g7-xwvr-rrw3GitHubgithub.com/helm/helm/security/advisories/GHSA-7hfp-qfw3-5jxhRefbugs.chromium.org/p/oss-fuzz/issues/detail?id=44996Refbugs.chromium.org/p/oss-fuzz/issues/detail?id=48360GitHubgithub.com/fluxcd/flux2/security/advisories/GHSA-p2g7-xwvr-rrw3GitHubgithub.com/helm/helm/security/advisories/GHSA-7hfp-qfw3-5jxh

How CyberStrike helps

Frequently asked questions

What is CVE-2022-36049?

CVE-2022-36049 is a high-severity vulnerability. It was published on September 7, 2022 and has a CVSS 3.1 base score of 7.7 (HIGH).

How severe is CVE-2022-36049?

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-36049?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-36049?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-36049 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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