CVE-2014-8989

medium

Published 2014-11-30 · Modified 2026-05-06

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

4.6

Description

The Linux kernel through 3.17.4 does not properly restrict dropping of supplemental group memberships in certain namespace scenarios, which allows local users to bypass intended file permissions by leveraging a POSIX ACL containing an entry for the group category that is more restrictive than the entry for the other category, aka a "negative groups" issue, related to kernel/groups.c, kernel/uid16.c, and kernel/user_namespace.c.

Predictions

Exploit likelihood

20%

Patch ETA

—

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 with source_tier=community-verified.

OS impact

Linux kernel Affected 174 releases

Version	Status	Fixed in
3.2	Affected	—
3.17.2	Affected	—
3.17.1	Affected	—
3.17	Affected	—
3.16.1	Affected	—
3.16.0	Affected	—
3.15.8	Affected	—
3.15.7	Affected	—
3.15.6	Affected	—
3.15.5	Affected	—
3.15.4	Affected	—
3.15.3	Affected	—
3.15.2	Affected	—
3.15.1	Affected	—
3.15	Affected	—
3.14.5	Affected	—
3.14.4	Affected	—
3.14.3	Affected	—
3.14.2	Affected	—
3.14.1	Affected	—
3.14	Affected	—
3.13.11	Affected	—
3.13.10	Affected	—
3.13.9	Affected	—
3.13.8	Affected	—
3.13.7	Affected	—
3.13.6	Affected	—
3.13.5	Affected	—
3.13.4	Affected	—
3.13.3	Affected	—
3.13.2	Affected	—
3.13.1	Affected	—
3.13	Affected	—
3.12.17	Affected	—
3.12.16	Affected	—
3.12.15	Affected	—
3.12.14	Affected	—
3.12.13	Affected	—
3.12.12	Affected	—
3.12.11	Affected	—
3.12.10	Affected	—
3.12.9	Affected	—
3.12.8	Affected	—
3.12.7	Affected	—
3.12.6	Affected	—
3.12.5	Affected	—
3.12.4	Affected	—
3.12.3	Affected	—
3.12.2	Affected	—
3.12.1	Affected	—
3.12	Affected	—
3.11.10	Affected	—
3.11.9	Affected	—
3.11.8	Affected	—
3.11.7	Affected	—
3.11.6	Affected	—
3.11.5	Affected	—
3.11.4	Affected	—
3.11.3	Affected	—
3.11.2	Affected	—
3.11.1	Affected	—
3.11	Affected	—
3.10.29	Affected	—
3.10.28	Affected	—
3.10.27	Affected	—
3.10.26	Affected	—
3.10.25	Affected	—
3.10.24	Affected	—
3.10.23	Affected	—
3.10.22	Affected	—
3.10.21	Affected	—
3.10.20	Affected	—
3.10.19	Affected	—
3.10.18	Affected	—
3.10.17	Affected	—
3.10.16	Affected	—
3.10.15	Affected	—
3.10.14	Affected	—
3.10.13	Affected	—
3.10.12	Affected	—
3.10.11	Affected	—
3.10.10	Affected	—
3.10.9	Affected	—
3.10.8	Affected	—
3.10.7	Affected	—
3.10.6	Affected	—
3.10.5	Affected	—
3.10.4	Affected	—
3.10.3	Affected	—
3.10.2	Affected	—
3.10.1	Affected	—
3.10.0	Affected	—
3.10	Affected	—
3.1.10	Affected	—
3.1.9	Affected	—
3.1.8	Affected	—
3.1.7	Affected	—
3.1.6	Affected	—
3.1.5	Affected	—
3.1.4	Affected	—
3.1.3	Affected	—
3.1.2	Affected	—
3.1.1	Affected	—
3.1	Affected	—
3.0.68	Affected	—
3.0.67	Affected	—
3.0.66	Affected	—
3.0.65	Affected	—
3.0.64	Affected	—
3.0.63	Affected	—
3.0.62	Affected	—
3.0.61	Affected	—
3.0.60	Affected	—
3.0.59	Affected	—
3.0.58	Affected	—
3.0.57	Affected	—
3.0.56	Affected	—
3.0.55	Affected	—
3.0.54	Affected	—
3.0.53	Affected	—
3.0.52	Affected	—
3.0.51	Affected	—
3.0.50	Affected	—
3.0.49	Affected	—
3.0.48	Affected	—
3.0.47	Affected	—
3.0.46	Affected	—
3.0.45	Affected	—
3.0.44	Affected	—
3.0.43	Affected	—
3.0.42	Affected	—
3.0.41	Affected	—
3.0.40	Affected	—
3.0.39	Affected	—
3.0.38	Affected	—
3.0.37	Affected	—
3.0.36	Affected	—
3.0.35	Affected	—
3.0.34	Affected	—
3.0.33	Affected	—
3.0.32	Affected	—
3.0.31	Affected	—
3.0.30	Affected	—
3.0.29	Affected	—
3.0.28	Affected	—
3.0.27	Affected	—
3.0.26	Affected	—
3.0.25	Affected	—
3.0.24	Affected	—
3.0.23	Affected	—
3.0.22	Affected	—
3.0.21	Affected	—
3.0.20	Affected	—
3.0.19	Affected	—
3.0.18	Affected	—
3.0.17	Affected	—
3.0.16	Affected	—
3.0.15	Affected	—
3.0.14	Affected	—
3.0.13	Affected	—
3.0.12	Affected	—
3.0.11	Affected	—
3.0.10	Affected	—
3.0.9	Affected	—
3.0.8	Affected	—
3.0.7	Affected	—
3.0.6	Affected	—
3.0.5	Affected	—
3.0.4	Affected	—
3.0.3	Affected	—
3.0.2	Affected	—
3.0.1	Affected	—
3.0	Affected	—
—	Affected	—

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`3.16.7-ckt4-1`
sid	Fixed	`3.16.7-ckt4-1`
forky	Fixed	`3.16.7-ckt4-1`
bullseye	Fixed	`3.16.7-ckt4-1`
bookworm	Fixed	`3.16.7-ckt4-1`

References

CWEs

CWE-264

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.