SUSE: CVE-2021-21284: SUSE Linux Security Advisory
Description
In Docker before versions 9.03.15, 20.10.3 there is a vulnerability involving the --userns-remap option in which access to remapped root allows privilege escalation to real root. When using "--userns-remap", if the root user in the remapped namespace has access to the host filesystem they can modify files under "/var/lib/docker/<remapping>" that cause writing files with extended privileges. Versions 20.10.3 and 19.03.15 contain patches that prevent privilege escalation from remapped user.
Solution(s)
- suse-upgrade-containerd
- suse-upgrade-containerd-ctr
- suse-upgrade-docker
- suse-upgrade-docker-bash-completion
- suse-upgrade-docker-fish-completion
- suse-upgrade-docker-libnetwork
- suse-upgrade-docker-runc
- suse-upgrade-docker-test
- suse-upgrade-docker-zsh-completion
- suse-upgrade-fish
- suse-upgrade-fish-devel
- suse-upgrade-golang-github-docker-libnetwork
- suse-upgrade-runc
- Lightweight Endpoint Agent
- Live Dashboards
- Real Risk Prioritization
- IT-Integrated Remediation Projects
- Cloud, Virtual, and Container Assessment
- Integrated Threat Feeds
- Easy-to-Use RESTful API
- Automation-Assisted Patching
- Automated Containment
With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.
– Scott Cheney, Manager of Information Security, Sierra View Medical Center