CVE-2022-39272
5.0 · MEDIUMOverview
CVE-2022-39272 is a medium-severity vulnerability affecting fluxcd flux2. It was published on October 22, 2022 and has a CVSS 3.1 base score of 5.0 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
Flux is an open and extensible continuous delivery solution for Kubernetes. Versions prior to 0.35.0 are subject to a Denial of Service. Users that have permissions to change Flux’s objects, either through a Flux source or directly within a cluster, can provide invalid data to fields `.spec.interval` or `.spec.timeout` (and structured variations of these fields), causing the entire object type to stop being processed. This issue is patched in version 0.35.0. As a workaround, Admission controllers can be employed to restrict the values that can be used for fields `.spec.interval` and `.spec.timeout`, however upgrading to the latest versions is still the recommended mitigation.
Remediation
Check the references section for vendor advisories and patches from fluxcd. Update flux2 to the latest patched version. 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.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| fluxcd | flux2 | >= 0.1.0, < 0.35.0 | Affected |
| fluxcd | helm-controller | >= 0.0.2, < 0.24.0 | Affected |
| fluxcd | image-automation-controller | >= 0.1.0, < 0.26.0 | Affected |
| fluxcd | image-reflector-controller | >= 0.1.0, < 0.22.0 | Affected |
| fluxcd | kustomize-controller | >= 0.0.2, < 0.29.0 | Affected |
| fluxcd | notification-controller | >= 0.0.2, < 0.27.0 | Affected |
| fluxcd | source-controller | >= 0.0.2, < 0.30.0 | Affected |
Frequently Asked Questions
What is CVE-2022-39272?
CVE-2022-39272 is a medium-severity vulnerability affecting fluxcd flux2. It was published on October 22, 2022 and has a CVSS 3.1 base score of 5.0 (MEDIUM).
How severe is CVE-2022-39272?
This vulnerability has a CVSS 3.1 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2022-39272?
Check the references section for vendor advisories and patches from fluxcd. Update flux2 to the latest patched version. 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-2022-39272?
CyberStrike's AI-powered security agents can automatically detect CVE-2022-39272 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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