SUSE-SU-2021:0435-1 Security update for containerd, docker, docker-runc, golang-github-docker-libnetwork

This update for containerd, docker, docker-runc, golang-github-docker-libnetwork fixes the following issues: Security issues fixed: - CVE-2020-15257: Fixed a privilege escalation in containerd bsc1178969. - CVE-2021-21284: potential privilege escalation when the root user in the remapped namespac...