{"id":"CVE-2022-36049","published":"2022-09-07T20:15:13Z","modified":"2025-04-23T17:14:00Z","title":"Flux2 Helm Controller denial of service","vendor":"fluxcd","product":"flux2","tier":"tail","description":{"text":"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.","provenance":"source","from":"CVE.org"},"cvss":{"score":7.7,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.01446,"percentile":0.73192,"provenance":"source"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"references":[{"url":"https://github.com/fluxcd/flux2/security/advisories/GHSA-p2g7-xwvr-rrw3","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/helm/helm/security/advisories/GHSA-7hfp-qfw3-5jxh","tags":["x_refsource_MISC"]},{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44996","tags":["x_refsource_MISC"]},{"url":"https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=48360","tags":["x_refsource_MISC"]}],"priority":{"score":20.0,"factors":[{"name":"EPSS percentile","points":14.64},{"name":"CVSS severity","points":5.39}]},"vendorSlug":"fluxcd","affectedVersions":[{"vendor":"fluxcd","product":"flux2","versions":[">= 0.0.4, < 0.23.0",">= 0.0.17, < 0.32.0"]}],"affected":[{"ecosystem":"Go","package":"github.com/fluxcd/helm-controller","vulnerableRanges":[">=0.0.4, <0.23.0"],"patched":["0.23.0"],"from":["GHSA-p2g7-xwvr-rrw3"],"provenance":"source"},{"ecosystem":"Go","package":"github.com/fluxcd/flux2","vulnerableRanges":[">=0.0.17, <0.32.0"],"patched":["0.32.0"],"from":["GHSA-p2g7-xwvr-rrw3"],"provenance":"source"}],"euvd":{"id":"EUVD-2022-6887","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-helm-cve-2022-36055","parents":[{"from":"CVE-2022-36055","to":"CVE-2022-36049","relation":"related","confidence":"high","kind":"lineage","evidence":[{"kind":"osv-related","provenance":"source","id":"GHSA-7hfp-qfw3-5jxh","via":"related"},{"kind":"osv-related","provenance":"source","id":"GHSA-p2g7-xwvr-rrw3","via":"related"},{"kind":"osv-related","provenance":"source","id":"GO-2022-0962","via":"related"},{"kind":"osv-related","provenance":"source","id":"GHSA-p2g7-xwvr-rrw3","via":"reference","url":"https://github.com/helm/helm/security/advisories/GHSA-7hfp-qfw3-5jxh"}]}]}}