Overview
- 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.
- Source
- security-advisories@github.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- HIGH
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:helm:helm:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CF12F100-CF74-44E7-9CA3-587E32370849",
"versionEndExcluding": "3.9.4",
"versionStartIncluding": "3.0.0"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:fluxcd:flux2:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "29EFFD48-5825-4DB2-9D8B-44AE793C41F1",
"versionEndExcluding": "0.32.0",
"versionStartIncluding": "0.0.17"
},
{
"criteria": "cpe:2.3:a:fluxcd:helm-controller:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D3138403-4B4C-4C3D-A5BF-816E148A7799",
"versionEndExcluding": "0.23.0",
"versionStartIncluding": "0.0.4"
}
],
"operator": "OR"
}
]
}
]