CVE-2022-39272

Flux2 vulnerable to Denial of Service due to Improper use of metav1.Duration

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.

Category

5.0
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.04%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: fluxcd flux2
Published at:
Updated at:

References

Link Tags
https://github.com/fluxcd/flux2/security/advisories/GHSA-f4p5-x4vc-mh4v third party advisory
https://github.com/kubernetes/apimachinery/issues/131 patch third party advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2022-39272?
CVE-2022-39272 has been scored as a medium severity vulnerability.
How to fix CVE-2022-39272?
To fix CVE-2022-39272, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-39272 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-39272 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-39272?
CVE-2022-39272 affects fluxcd flux2.
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