发布于3月6日3月6日 Members Oracle Linux: CVE-2023-25809: ELSA-2023-6380:runc security update (MODERATE) (Multiple Advisories) Severity 4 CVSS (AV:L/AC:L/Au:S/C:P/I:P/A:P) Published 03/29/2023 Created 07/21/2023 Added 07/20/2023 Modified 01/07/2025 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`. A flaw was found in runc, where it is vulnerable to a denial of service caused by improper access control in the /sys/fs/cgroup endpoint. This flaw allows a local authenticated attacker to cause a denial of service. Solution(s) oracle-linux-upgrade-aardvark-dns oracle-linux-upgrade-buildah oracle-linux-upgrade-buildah-tests oracle-linux-upgrade-cockpit-podman oracle-linux-upgrade-conmon oracle-linux-upgrade-containernetworking-plugins oracle-linux-upgrade-containers-common oracle-linux-upgrade-container-selinux oracle-linux-upgrade-crit oracle-linux-upgrade-criu oracle-linux-upgrade-criu-devel oracle-linux-upgrade-criu-libs oracle-linux-upgrade-crun oracle-linux-upgrade-fuse-overlayfs oracle-linux-upgrade-libslirp oracle-linux-upgrade-libslirp-devel oracle-linux-upgrade-netavark oracle-linux-upgrade-oci-seccomp-bpf-hook oracle-linux-upgrade-podman oracle-linux-upgrade-podman-catatonit oracle-linux-upgrade-podman-docker oracle-linux-upgrade-podman-gvproxy oracle-linux-upgrade-podman-plugins oracle-linux-upgrade-podman-remote oracle-linux-upgrade-podman-tests oracle-linux-upgrade-python3-criu oracle-linux-upgrade-python3-podman oracle-linux-upgrade-runc oracle-linux-upgrade-skopeo oracle-linux-upgrade-skopeo-tests oracle-linux-upgrade-slirp4netns oracle-linux-upgrade-udica References https://attackerkb.com/topics/cve-2023-25809 CVE - 2023-25809 ELSA-2023-6380 ELSA-2023-6938 ELSA-2023-12579 ELSA-2023-12578 ELSA-2023-6939
