CVE-2021-25736
Kube-proxy on Windows can unintentionally forward traffic to local processes listening on the same port (“spec.ports[*].port”) as a LoadBalancer Service when the LoadBalancer controller does not set the “status.loadBalancer.ingress[].ip” field. Clusters where the LoadBalancer controller sets the “status.loadBalancer.ingress[].ip” field are unaffected.
| Software | From | Fixed in |
|---|---|---|
k8s.io/kubernetes
|
- | 1.21 |
| kubernetes / kubernetes | 1.18.0 | 1.18.18 |
| kubernetes / kubernetes | 1.19.0 | 1.19.10 |
| kubernetes / kubernetes | 1.20.0 | 1.20.6 |
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