Other then that, this release contains no other changes from 1.5.4.

The vulnerability is tracked in http://issue.k8s.io/43459.

**Who is affected?**

Only Kubernetes 1.5.0-1.5.4 installations that do all of the following:
* Enable the PodSecurityPolicy API (which is not enabled by default):
  * `--runtime-config=extensions/v1beta1/podsecuritypolicy=true`

* Include serial port output in GCP log-dump ([#37248](https://github.com/kubernetes/kubernetes/pull/37248), [@mtaufen](https://github.com/mtaufen))
* Collect installation and configuration service logs for tests ([#37401](https://github.com/kubernetes/kubernetes/pull/37401), [@mtaufen](https://github.com/mtaufen))