Flux2 Helm Controller denial of service
Flux2 is a tool for keeping Kubernetes clusters in sync with sources of configuration, and Flux's helm-controller is a Kubernetes operator that allows one to declaratively manage Helm chart releases. Helm controller is tightly integrated with the Helm SDK. A vulnerability found in the Helm SDK that affects flux2 v0.0.17 until v0.32.0 and helm-controller v0.0.4 until v0.23.0 allows for specific data inputs to cause high memory consumption. In some platforms, this could cause the controller to panic and stop processing reconciliations. In a shared cluster multi-tenancy environment, a tenant could create a HelmRelease that makes the controller panic, denying all other tenants from their Helm releases being reconciled. Patches are available in flux2 v0.32.0 and helm-controller v0.23.0.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2022-36049US | high7.5 | — | ||
Flux2 is a tool for keeping Kubernetes clusters in sync with sources of configuration, and Flux's helm-controller is a Kubernetes operator that allows one to declaratively manage H… | ||||
references
External citations — patches, advisories, analysis.
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44996ADVISORY
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=48360ADVISORY
- https://github.com/fluxcd/flux2/security/advisories/GHSA-p2g7-xwvr-rrw3ADVISORY
- https://github.com/helm/helm/security/advisories/GHSA-7hfp-qfw3-5jxhADVISORY
- https://nvd.nist.gov/vuln/detail/CVE-2022-36049WEB
Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.
Free scan