GHSA-f4p5-x4vc-mh4v

Source

https://github.com/advisories/GHSA-f4p5-x4vc-mh4v

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/10/GHSA-f4p5-x4vc-mh4v/GHSA-f4p5-x4vc-mh4v.json

JSON Data

https://api.test.osv.dev/v1/vulns/GHSA-f4p5-x4vc-mh4v

Aliases

Related

CGA-gvfg-4mjf-pf84

Published

2022-10-19T18:40:02Z

Modified

2024-09-11T06:12:37.837743Z

Severity

5.0 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L CVSS Calculator

Summary

Improper use of metav1.Duration allows for Denial of Service

Details

Flux controllers within the affected versions range are vulnerable to a denial of service attack. 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.

The issue has two root causes: a) the Kubernetes type metav1.Duration not being fully compatible with the Go type time.Duration as explained on upstream report; b) lack of validation within Flux to restrict allowed values.

Workarounds

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.

Credits

This issue was reported by Alexander Block (@codablock) through the Flux security mailing list (as recommended).

For more information

If you have any questions or comments about this advisory:

Open an issue in any of the affected repositories.
Contact us at the CNCF Flux channel.

References

https://github.com/kubernetes/apimachinery/issues/131

Database specific

{
    "nvd_published_at": "2022-10-22T00:15:00Z",
    "cwe_ids": [
        "CWE-20"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2022-10-19T18:40:02Z"
}

References

Affected packages

Go / github.com/fluxcd/flux2

Package

Name: github.com/fluxcd/flux2; View open source insights on deps.dev
Purl: pkg:golang/github.com/fluxcd/flux2

Affected ranges

Type: SEMVER
Events: Introduced

0.1.0

Fixed

0.35.0

Go / github.com/fluxcd/source-controller

Package

Name: github.com/fluxcd/source-controller; View open source insights on deps.dev
Purl: pkg:golang/github.com/fluxcd/source-controller

Affected ranges

Type: SEMVER
Events: Introduced

0.0.1-alpha-1

Fixed

0.30.0

Go / github.com/fluxcd/kustomize-controller

Package

Name: github.com/fluxcd/kustomize-controller; View open source insights on deps.dev
Purl: pkg:golang/github.com/fluxcd/kustomize-controller

Affected ranges

Type: SEMVER
Events: Introduced

0.0.1-alpha-1

Fixed

0.29.0

Go / github.com/fluxcd/helm-controller

Package

Name: github.com/fluxcd/helm-controller; View open source insights on deps.dev
Purl: pkg:golang/github.com/fluxcd/helm-controller

Affected ranges

Type: SEMVER
Events: Introduced

0.0.1-alpha-1

Fixed

0.24.0

Go / github.com/fluxcd/notification-controller

Package

Name: github.com/fluxcd/notification-controller; View open source insights on deps.dev
Purl: pkg:golang/github.com/fluxcd/notification-controller

Affected ranges

Type: SEMVER
Events: Introduced

0.0.1-alpha-1

Fixed

0.27.0

Go / github.com/fluxcd/image-automation-controller

Package

Name: github.com/fluxcd/image-automation-controller; View open source insights on deps.dev
Purl: pkg:golang/github.com/fluxcd/image-automation-controller

Affected ranges

Type: SEMVER
Events: Introduced

0.1.0

Fixed

0.26.0

Go / github.com/fluxcd/image-reflector-controller

Package

Name: github.com/fluxcd/image-reflector-controller; View open source insights on deps.dev
Purl: pkg:golang/github.com/fluxcd/image-reflector-controller

Affected ranges

Type: SEMVER
Events: Introduced

0.1.0

Fixed

0.22.0

Go / github.com/fluxcd/helm-controller/api

Package

Name: github.com/fluxcd/helm-controller/api; View open source insights on deps.dev
Purl: pkg:golang/github.com/fluxcd/helm-controller/api

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.26.0

Go / github.com/fluxcd/image-automation-controller/api

Package

Name: github.com/fluxcd/image-automation-controller/api; View open source insights on deps.dev
Purl: pkg:golang/github.com/fluxcd/image-automation-controller/api

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.26.1

Go / github.com/fluxcd/image-reflector-controller/api

Package

Name: github.com/fluxcd/image-reflector-controller/api; View open source insights on deps.dev
Purl: pkg:golang/github.com/fluxcd/image-reflector-controller/api

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.22.1

Go / github.com/fluxcd/kustomize-controller/api

Package

Name: github.com/fluxcd/kustomize-controller/api; View open source insights on deps.dev
Purl: pkg:golang/github.com/fluxcd/kustomize-controller/api

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.30.0

Go / github.com/fluxcd/notification-controller/api

Package

Name: github.com/fluxcd/notification-controller/api; View open source insights on deps.dev
Purl: pkg:golang/github.com/fluxcd/notification-controller/api

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.28.0

Go / github.com/fluxcd/source-controller/api

Package

Name: github.com/fluxcd/source-controller/api; View open source insights on deps.dev
Purl: pkg:golang/github.com/fluxcd/source-controller/api

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

0.30.0