Vulnerability Details : CVE-2022-39272
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.
Vulnerability category: Input validationDenial of service
Products affected by CVE-2022-39272
- cpe:2.3:a:fluxcd:kustomize-controller:*:*:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:kustomize-controller:0.0.1:alpha1:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:kustomize-controller:0.0.1:alpha2:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:kustomize-controller:0.0.1:alpha3:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:kustomize-controller:0.0.1:alpha4:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:kustomize-controller:0.0.1:alpha5:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:kustomize-controller:0.0.1:alpha6:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:kustomize-controller:0.0.1:alpha7:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:kustomize-controller:0.0.1:alpha8:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:kustomize-controller:0.0.1:alpha9:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:kustomize-controller:0.0.1:beta1:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:kustomize-controller:0.0.1:beta2:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:flux2:*:*:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:helm-controller:*:*:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:helm-controller:0.0.1:alpha1:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:helm-controller:0.0.1:alpha2:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:helm-controller:0.0.1:beta1:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:helm-controller:0.0.1:beta2:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:helm-controller:0.0.1:beta3:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:helm-controller:0.0.1:beta4:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:source-controller:*:*:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:source-controller:0.0.1:alpha2:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:source-controller:0.0.1:alpha1:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:source-controller:0.0.1:alpha3:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:source-controller:0.0.1:alpha4:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:source-controller:0.0.1:alpha5:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:source-controller:0.0.1:alpha6:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:source-controller:0.0.1:beta1:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:source-controller:0.0.1:beta2:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:notification-controller:*:*:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:notification-controller:0.0.1:alpha2:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:notification-controller:0.0.1:alpha1:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:notification-controller:0.0.1:beta1:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:image-reflector-controller:*:*:*:*:*:*:*:*
- cpe:2.3:a:fluxcd:image-automation-controller:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-39272
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 8 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-39272
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
2.8
|
1.4
|
NIST | |
|
5.0
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L |
3.1
|
1.4
|
GitHub, Inc. |
CWE ids for CVE-2022-39272
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
-
The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2022-39272
-
https://github.com/fluxcd/flux2/security/advisories/GHSA-f4p5-x4vc-mh4v
Improper use of metav1.Duration allows for Denial of Service · Advisory · fluxcd/flux2 · GitHubThird Party Advisory
-
https://github.com/kubernetes/apimachinery/issues/131
metav1.Duration doesn't parse `d`, `w`; conflicts with kubebuilder `format=duration` validation · Issue #131 · kubernetes/apimachinery · GitHubIssue Tracking;Patch;Third Party Advisory
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