CVE-2025-31133
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- CVE-2025-31133
CVE Details
| Release Date: | 2025-11-06 | |
| Impact: | Important | What is this? |
Description
runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7 and below, 1.3.0-rc.1 through 1.3.1, 1.4.0-rc.1 and 1.4.0-rc.2 files, runc would not perform sufficient verification that the source of the bind-mount (i.e., the container's /dev/null) was actually a real /dev/null inode when using the container's /dev/null to mask. This exposes two methods of attack: an arbitrary mount gadget, leading to host information disclosure, host denial of service, container escape, or a bypassing of maskedPaths. This issue is fixed in versions 1.2.8, 1.3.3 and 1.4.0-rc.3.
See more information about CVE-2025-31133 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 metrics
| Base Score: | 8.2 |
| Vector String: | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
| Version: | 3.1 |
| Attack Vector: | Local |
| Attack Complexity: | Low |
| Privileges Required: | Low |
| User Interaction: | Required |
| Scope: | Changed |
| Confidentiality Impact: | High |
| Integrity Impact: | High |
| Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 8 (aardvark-dns) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (buildah) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (cockpit-podman) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (conmon) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (container-selinux) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (containernetworking-plugins) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (containers-common) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (criu) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (crun) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (fuse-overlayfs) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (libslirp) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (netavark) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (oci-seccomp-bpf-hook) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (podman) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (python-podman) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (runc) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (skopeo) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (slirp4netns) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 8 (udica) | ELSA-2025-21232 | 2025-11-17 |
| Oracle Linux version 9 (runc) | ELSA-2025-19927 | 2025-11-07 |
| Oracle Linux version 9 (runc) | ELSA-2025-20957 | 2025-11-25 |
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