Vulnerability CVE-2022-36049: Information
Description
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.
Severity: HIGH (7.5) Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Fixed packages
Package name | Branch | Fixed in version | Version from repository | Errata ID | Task # | State |
|---|---|---|---|---|---|---|
| helm | sisyphus | 3.10.2-alt1 | 3.12.0-alt1 | ALT-PU-2022-3299-1 | 311365 | Fixed |
| helm | p10 | 3.10.2-alt1 | 3.10.2-alt1 | ALT-PU-2022-3302-1 | 311367 | Fixed |
| helm | c10f1 | 3.10.2-alt1 | 3.10.2-alt1 | ALT-PU-2022-3302-1 | 311367 | Fixed |
| helm | p11 | 3.10.2-alt1 | 3.12.0-alt1 | ALT-PU-2022-3299-1 | 311365 | Fixed |
References to Advisories, Solutions, and Tools
Hyperlink | Resource |
|---|---|
| https://github.com/fluxcd/flux2/security/advisories/GHSA-p2g7-xwvr-rrw3 |
|
| https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44996 |
|
| https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=48360 |
|
| https://github.com/helm/helm/security/advisories/GHSA-7hfp-qfw3-5jxh |
|