CVE-2022-36109
Description
Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby (Docker Engine) where supplementary groups are not set up properly. If an attacker has direct access to a container and manipulates their supplementary group access, they may be able to use supplementary group access to bypass primary group restrictions in some cases, potentially gaining access to sensitive information or gaining the ability to execute code in that container. This bug is fixed in Moby (Docker Engine) 20.10.18. Running containers should be stopped and restarted for the permissions to be fixed. For users unable to upgrade, this problem can be worked around by not using the `"USER $USERNAME"` Dockerfile instruction. Instead by calling `ENTRYPOINT ["su", "-", "user"]` the supplementary groups will be set up properly.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Mixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 20.10.19+dfsg1-1 |
| sid | Fixed | 20.10.19+dfsg1-1 |
| forky | Fixed | 20.10.19+dfsg1-1 |
| bullseye | Affected | — |
| bookworm | Fixed | 20.10.19+dfsg1-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/docker/docker | <20.10.18 | 20.10.18 |
| Go | github.com/docker/docker | <20.10.18+incompatible | 20.10.18+incompatible |
References
- https://security-tracker.debian.org/tracker/CVE-2022-36109
- https://www.suse.com/security/cve/CVE-2022-36109.html
- https://github.com/moby/moby/security/advisories/GHSA-rc4r-wh2q-q6c4
- https://nvd.nist.gov/vuln/detail/CVE-2022-36109
- https://github.com/moby/moby/commit/de7af816e76a7fd3fbf06bffa6832959289fba32
- https://github.com/moby/moby
- https://github.com/moby/moby/releases/tag/v20.10.18
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O7JL2QA3RB732MLJ3RMUXB3IB7AA22YU
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RQQ4E3JBXVR3VK5FIZVJ3QS2TAOOXXTQ
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O7JL2QA3RB732MLJ3RMUXB3IB7AA22YU
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RQQ4E3JBXVR3VK5FIZVJ3QS2TAOOXXTQ
- https://www.benthamsgaze.org/2022/08/22/vulnerability-in-linux-containers-investigation-and-mitigation
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.