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apiVersion: kyverno.io/v1 | ||
kind: ClusterPolicy | ||
metadata: | ||
name: check-kernel | ||
annotations: | ||
policies.kyverno.io/title: Check Node for CVE-2022-0185 | ||
policies.kyverno.io/category: Other | ||
policies.kyverno.io/severity: high | ||
kyverno.io/kyverno-version: 1.6.0 | ||
policies.kyverno.io/minversion: 1.6.0 | ||
kyverno.io/kubernetes-version: "1.23" | ||
policies.kyverno.io/subject: Node | ||
policies.kyverno.io/description: >- | ||
Linux CVE-2022-0185 can allow a container escape in Kubernetes if left unpatched. | ||
The affected Linux kernel versions, at this time, are 5.10.84-1 and 5.15.5-2. | ||
For more information, refer to https://security-tracker.debian.org/tracker/CVE-2022-0185. | ||
This policy runs in background mode and flags an entry in the ClusterPolicyReport | ||
if any Node is reporting one of the affected kernel versions. | ||
spec: | ||
validationFailureAction: audit | ||
background: true | ||
rules: | ||
- name: kernel-validate | ||
match: | ||
any: | ||
- resources: | ||
kinds: | ||
- Node | ||
validate: | ||
message: "Kernel is vulnerable to CVE-2022-0185." | ||
deny: | ||
conditions: | ||
any: | ||
- key: "{{request.object.status.nodeInfo.kernelVersion}}" | ||
operator: Equals | ||
value: "5.10.84-1" | ||
- key: "{{request.object.status.nodeInfo.kernelVersion}}" | ||
operator: Equals | ||
value: "5.15.5-2" |