Red Hat: CVE-2023-25809: runc: Rootless runc makes `/sys/fs/cgroup` writable (Multiple Advisories)
Description
runc is a CLI tool for spawning and running containers according to the OCI specification. In affected versions it was found that rootless runc makes `/sys/fs/cgroup` writable in following conditons: 1. when runc is executed inside the user namespace, and the `config.json` does not specify the cgroup namespace to be unshared (e.g.., `(docker|podman|nerdctl) run --cgroupns=host`, with Rootless Docker/Podman/nerdctl) or 2. when runc is executed outside the user namespace, and `/sys` is mounted with `rbind, ro` (e.g., `runc spec --rootless`; this condition is very rare). A container may gain the write access to user-owned cgroup hierarchy `/sys/fs/cgroup/user.slice/...` on the host . Other users's cgroup hierarchies are not affected. Users are advised to upgrade to version 1.1.5. Users unable to upgrade may unshare the cgroup namespace (`(docker|podman|nerdctl) run --cgroupns=private)`. This is the default behavior of Docker/Podman/nerdctl on cgroup v2 hosts. or add `/sys/fs/cgroup` to `maskedPaths`.
Solution(s)
- redhat-upgrade-aardvark-dns
- redhat-upgrade-buildah
- redhat-upgrade-buildah-debuginfo
- redhat-upgrade-buildah-debugsource
- redhat-upgrade-buildah-tests
- redhat-upgrade-buildah-tests-debuginfo
- redhat-upgrade-cockpit-podman
- redhat-upgrade-conmon
- redhat-upgrade-conmon-debuginfo
- redhat-upgrade-conmon-debugsource
- redhat-upgrade-container-selinux
- redhat-upgrade-containernetworking-plugins
- redhat-upgrade-containernetworking-plugins-debuginfo
- redhat-upgrade-containernetworking-plugins-debugsource
- redhat-upgrade-containers-common
- redhat-upgrade-crit
- redhat-upgrade-criu
- redhat-upgrade-criu-debuginfo
- redhat-upgrade-criu-debugsource
- redhat-upgrade-criu-devel
- redhat-upgrade-criu-libs
- redhat-upgrade-criu-libs-debuginfo
- redhat-upgrade-crun
- redhat-upgrade-crun-debuginfo
- redhat-upgrade-crun-debugsource
- redhat-upgrade-fuse-overlayfs
- redhat-upgrade-fuse-overlayfs-debuginfo
- redhat-upgrade-fuse-overlayfs-debugsource
- redhat-upgrade-libslirp
- redhat-upgrade-libslirp-debuginfo
- redhat-upgrade-libslirp-debugsource
- redhat-upgrade-libslirp-devel
- redhat-upgrade-netavark
- redhat-upgrade-oci-seccomp-bpf-hook
- redhat-upgrade-oci-seccomp-bpf-hook-debuginfo
- redhat-upgrade-oci-seccomp-bpf-hook-debugsource
- redhat-upgrade-podman
- redhat-upgrade-podman-catatonit
- redhat-upgrade-podman-catatonit-debuginfo
- redhat-upgrade-podman-debuginfo
- redhat-upgrade-podman-debugsource
- redhat-upgrade-podman-docker
- redhat-upgrade-podman-gvproxy
- redhat-upgrade-podman-gvproxy-debuginfo
- redhat-upgrade-podman-plugins
- redhat-upgrade-podman-plugins-debuginfo
- redhat-upgrade-podman-remote
- redhat-upgrade-podman-remote-debuginfo
- redhat-upgrade-podman-tests
- redhat-upgrade-python3-criu
- redhat-upgrade-python3-podman
- redhat-upgrade-runc
- redhat-upgrade-runc-debuginfo
- redhat-upgrade-runc-debugsource
- redhat-upgrade-skopeo
- redhat-upgrade-skopeo-debuginfo
- redhat-upgrade-skopeo-debugsource
- redhat-upgrade-skopeo-tests
- redhat-upgrade-slirp4netns
- redhat-upgrade-slirp4netns-debuginfo
- redhat-upgrade-slirp4netns-debugsource
- redhat-upgrade-toolbox
- redhat-upgrade-toolbox-debuginfo
- redhat-upgrade-toolbox-debugsource
- redhat-upgrade-toolbox-tests
- redhat-upgrade-udica
- 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