Kubelet: Privilege Escalation

Background

Kubelet is a Kubernetes Node Agent.

Description

A vulnerability has been discovered in Kubelet. Please review the CVE identifier referenced below for details.

Impact

A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.

Workaround

There is no known workaround at this time.

Resolution

All Kubelet users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=sys-cluster/kubelet-1.28.5"