Banjot Chanana

Docker Security Update: CVE-2019-5736 and Container Security Best Practices

On Monday, February 11, Docker released an update to fix a privilege escalation vulnerability (CVE-2019-5736) in runC, the Open Container Initiative (OCI) runtime specification used in Docker Engine and containerd. This vulnerability makes it possible for a malicious actor that has created a specially-crafted container image to gain administrative privileges on the host. Docker engineering worked with runC maintainers on the OCI to issue a patch for this vulnerability. Docker recommends immediately applying the update to avoid any potential security threats. For Docker Engine-Community, this means updating to 18.09.2 or 18.06.3. For Docker Engine- Enterprise, this means updating to 18.09.2, 18.03.1-ee-6, or 17.06.2-ee-19. Read the release notes before applying the update due to specific instructions for Ubuntu and RHEL operating systems. For Docker Desktop, users should download the update for Mac or Windows. Summary of the Docker Engine versions that address the vulnerability:   Continue reading…