id: GO-2022-1071
modules:
    - module: github.com/fluxcd/helm-controller/api
      versions:
        - fixed: 0.26.0
      vulnerable_at: 0.25.0
      packages:
        - package: github.com/fluxcd/helm-controller/api/v2beta1
    - module: github.com/fluxcd/image-automation-controller/api
      versions:
        - fixed: 0.26.1
      vulnerable_at: 0.26.0
      packages:
        - package: github.com/fluxcd/image-automation-controller/api/v1beta1
    - module: github.com/fluxcd/image-reflector-controller/api
      versions:
        - fixed: 0.22.1
      vulnerable_at: 0.22.0
      packages:
        - package: github.com/fluxcd/image-reflector-controller/api/v1beta1
    - module: github.com/fluxcd/kustomize-controller/api
      versions:
        - fixed: 0.30.0
      vulnerable_at: 0.29.0
      packages:
        - package: github.com/fluxcd/kustomize-controller/api/v1beta2
    - module: github.com/fluxcd/notification-controller/api
      versions:
        - fixed: 0.28.0
      vulnerable_at: 0.27.0
      packages:
        - package: github.com/fluxcd/notification-controller/api/v1beta1
    - module: github.com/fluxcd/source-controller/api
      versions:
        - fixed: 0.30.0
      vulnerable_at: 0.29.0
      packages:
        - package: github.com/fluxcd/source-controller/api/v1beta2
summary: Denial of service in flux controllers in github.com/fluxcd modules
description: |-
    Flux controllers 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` is not
    fully compatible with the Go type `time.Duration` as explained in
    https://github.com/kubernetes/apimachinery/issues/131, and b) a lack of
    validation within Flux to restrict allowed values.
cves:
    - CVE-2022-39272
ghsas:
    - GHSA-f4p5-x4vc-mh4v
credits:
    - Alexander Block (@codablock)
references:
    - advisory: https://github.com/advisories/GHSA-f4p5-x4vc-mh4v
    - fix: https://github.com/fluxcd/helm-controller/pull/533
    - fix: https://github.com/fluxcd/image-automation-controller/pull/439
    - fix: https://github.com/fluxcd/image-reflector-controller/pull/314
    - fix: https://github.com/fluxcd/kustomize-controller/pull/731
    - fix: https://github.com/fluxcd/notification-controller/pull/420
    - fix: https://github.com/fluxcd/source-controller/pull/903
    - web: https://github.com/kubernetes/apimachinery#131