kubelet-started container uid changes to root after first restart or if image is already pulled to the node

In kubelet v1.13.6 and v1.14.2, containers for pods that do not specify an explicit runAsUser attempt to run as uid 0 (root) on container restart, or if the image was previously pulled to the node. If the pod specified mustRunAsNonRoot: true, the kubelet will refuse to start the container as root. If the pod did not specify mustRunAsNonRoot: true, the kubelet will run the container as uid 0.

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对异常条件检查或处理不恰当

Google Kubernetes 权限许可和访问控制问题漏洞

Google Kubernetes是美国谷歌（Google）公司的一套开源的Docker容器集群管理系统。该系统为容器化的应用提供资源调度、部署运行、服务发现和扩容缩容等功能。 Google Kubernetes v1.13.6版本和v1.14.2版本中存在安全漏洞。攻击者可利用该漏洞提升权限。

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