Upgrade a kubeadm powered Kubernetes cluster on AWS EC2

Like any other software, Kubernetes reveals some security breaches from time to time. On November 26th, 2018 CVE-2018-1002105 was published with a critical score of 9,8 (10 is maximum). With a specially crafted request, users that are authorized to establish a connection through the Kubernetes API server to a backend server can then send arbitrary requests […]