CVE-2014-8989
medium
CVSS v3
—
CVSS v4 NEW
—
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 withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| linux-kernel | affected | | |
| debian | bookworm | fixed | 3.16.7-ckt4-1 |
| debian | bullseye | fixed | 3.16.7-ckt4-1 |
| debian | forky | fixed | 3.16.7-ckt4-1 |
| debian | sid | fixed | 3.16.7-ckt4-1 |
| debian | trixie | fixed | 3.16.7-ckt4-1 |
| linux-kernel | 3.0 | affected | |
| linux-kernel | 3.0.1 | affected | |
| linux-kernel | 3.0.2 | affected | |
| linux-kernel | 3.0.3 | affected | |
| linux-kernel | 3.0.4 | affected | |
| linux-kernel | 3.0.5 | affected | |
| linux-kernel | 3.0.6 | affected | |
| linux-kernel | 3.0.7 | affected | |
| linux-kernel | 3.0.8 | affected | |
| linux-kernel | 3.0.9 | affected | |
| linux-kernel | 3.0.10 | affected | |
| linux-kernel | 3.0.11 | affected | |
| linux-kernel | 3.0.12 | affected | |
| linux-kernel | 3.0.13 | affected | |
| linux-kernel | 3.0.14 | affected | |
| linux-kernel | 3.0.15 | affected | |
| linux-kernel | 3.0.16 | affected | |
| linux-kernel | 3.0.17 | affected | |
| linux-kernel | 3.0.18 | affected | |
| linux-kernel | 3.0.19 | affected | |
| linux-kernel | 3.0.20 | affected | |
| linux-kernel | 3.0.21 | affected | |
| linux-kernel | 3.0.22 | affected | |
| linux-kernel | 3.0.23 | affected | |
| linux-kernel | 3.0.24 | affected | |
| linux-kernel | 3.0.25 | affected | |
| linux-kernel | 3.0.26 | affected | |
| linux-kernel | 3.0.27 | affected | |
| linux-kernel | 3.0.28 | affected | |
| linux-kernel | 3.0.29 | affected | |
| linux-kernel | 3.0.30 | affected | |
| linux-kernel | 3.0.31 | affected | |
| linux-kernel | 3.0.32 | affected | |
| linux-kernel | 3.0.33 | affected | |
| linux-kernel | 3.0.34 | affected | |
| linux-kernel | 3.0.35 | affected | |
| linux-kernel | 3.0.36 | affected | |
| linux-kernel | 3.0.37 | affected | |
| linux-kernel | 3.0.38 | affected | |
| linux-kernel | 3.0.39 | affected | |
| linux-kernel | 3.0.40 | affected | |
| linux-kernel | 3.0.41 | affected | |
| linux-kernel | 3.0.42 | affected | |
| linux-kernel | 3.0.43 | affected | |
| linux-kernel | 3.0.44 | affected | |
| linux-kernel | 3.0.45 | affected | |
| linux-kernel | 3.0.46 | affected | |
| linux-kernel | 3.0.47 | affected | |
| linux-kernel | 3.0.48 | affected | |
| linux-kernel | 3.0.49 | affected | |
| linux-kernel | 3.0.50 | affected | |
| linux-kernel | 3.0.51 | affected | |
| linux-kernel | 3.0.52 | affected | |
| linux-kernel | 3.0.53 | affected | |
| linux-kernel | 3.0.54 | affected | |
| linux-kernel | 3.0.55 | affected | |
| linux-kernel | 3.0.56 | affected | |
| linux-kernel | 3.0.57 | affected | |
| linux-kernel | 3.0.58 | affected | |
| linux-kernel | 3.0.59 | affected | |
| linux-kernel | 3.0.60 | affected | |
| linux-kernel | 3.0.61 | affected | |
| linux-kernel | 3.0.62 | affected | |
| linux-kernel | 3.0.63 | affected | |
| linux-kernel | 3.0.64 | affected | |
| linux-kernel | 3.0.65 | affected | |
| linux-kernel | 3.0.66 | affected | |
| linux-kernel | 3.0.67 | affected | |
| linux-kernel | 3.0.68 | affected | |
| linux-kernel | 3.1 | affected | |
| linux-kernel | 3.1.1 | affected | |
| linux-kernel | 3.1.2 | affected | |
| linux-kernel | 3.1.3 | affected | |
| linux-kernel | 3.1.4 | affected | |
| linux-kernel | 3.1.5 | affected | |
| linux-kernel | 3.1.6 | affected | |
| linux-kernel | 3.1.7 | affected | |
| linux-kernel | 3.1.8 | affected | |
| linux-kernel | 3.1.9 | affected | |
| linux-kernel | 3.1.10 | affected | |
| linux-kernel | 3.2 | affected | |
| linux-kernel | 3.10 | affected | |
| linux-kernel | 3.10.0 | affected | |
| linux-kernel | 3.10.1 | affected | |
| linux-kernel | 3.10.2 | affected | |
| linux-kernel | 3.10.3 | affected | |
| linux-kernel | 3.10.4 | affected | |
| linux-kernel | 3.10.5 | affected | |
| linux-kernel | 3.10.6 | affected | |
| linux-kernel | 3.10.7 | affected | |
| linux-kernel | 3.10.8 | affected | |
| linux-kernel | 3.10.9 | affected | |
| linux-kernel | 3.10.10 | affected | |
| linux-kernel | 3.10.11 | affected | |
| linux-kernel | 3.10.12 | affected | |
| linux-kernel | 3.10.13 | affected | |
| linux-kernel | 3.10.14 | affected | |
| linux-kernel | 3.10.15 | affected | |
| linux-kernel | 3.10.16 | affected | |
| linux-kernel | 3.10.17 | affected | |
| linux-kernel | 3.10.18 | affected | |
| linux-kernel | 3.10.19 | affected | |
| linux-kernel | 3.10.20 | affected | |
| linux-kernel | 3.10.21 | affected | |
| linux-kernel | 3.10.22 | affected | |
| linux-kernel | 3.10.23 | affected | |
| linux-kernel | 3.10.24 | affected | |
| linux-kernel | 3.10.25 | affected | |
| linux-kernel | 3.10.26 | affected | |
| linux-kernel | 3.10.27 | affected | |
| linux-kernel | 3.10.28 | affected | |
| linux-kernel | 3.10.29 | affected | |
| linux-kernel | 3.11 | affected | |
| linux-kernel | 3.11.1 | affected | |
| linux-kernel | 3.11.2 | affected | |
| linux-kernel | 3.11.3 | affected | |
| linux-kernel | 3.11.4 | affected | |
| linux-kernel | 3.11.5 | affected | |
| linux-kernel | 3.11.6 | affected | |
| linux-kernel | 3.11.7 | affected | |
| linux-kernel | 3.11.8 | affected | |
| linux-kernel | 3.11.9 | affected | |
| linux-kernel | 3.11.10 | affected | |
| linux-kernel | 3.12 | affected | |
| linux-kernel | 3.12.1 | affected | |
| linux-kernel | 3.12.2 | affected | |
| linux-kernel | 3.12.3 | affected | |
| linux-kernel | 3.12.4 | affected | |
| linux-kernel | 3.12.5 | affected | |
| linux-kernel | 3.12.6 | affected | |
| linux-kernel | 3.12.7 | affected | |
| linux-kernel | 3.12.8 | affected | |
| linux-kernel | 3.12.9 | affected | |
| linux-kernel | 3.12.10 | affected | |
| linux-kernel | 3.12.11 | affected | |
| linux-kernel | 3.12.12 | affected | |
| linux-kernel | 3.12.13 | affected | |
| linux-kernel | 3.12.14 | affected | |
| linux-kernel | 3.12.15 | affected | |
| linux-kernel | 3.12.16 | affected | |
| linux-kernel | 3.12.17 | affected | |
| linux-kernel | 3.13 | affected | |
| linux-kernel | 3.13.1 | affected | |
| linux-kernel | 3.13.2 | affected | |
| linux-kernel | 3.13.3 | affected | |
| linux-kernel | 3.13.4 | affected | |
| linux-kernel | 3.13.5 | affected | |
| linux-kernel | 3.13.6 | affected | |
| linux-kernel | 3.13.7 | affected | |
| linux-kernel | 3.13.8 | affected | |
| linux-kernel | 3.13.9 | affected | |
| linux-kernel | 3.13.10 | affected | |
| linux-kernel | 3.13.11 | affected | |
| linux-kernel | 3.14 | affected | |
| linux-kernel | 3.14.1 | affected | |
| linux-kernel | 3.14.2 | affected | |
| linux-kernel | 3.14.3 | affected | |
| linux-kernel | 3.14.4 | affected | |
| linux-kernel | 3.14.5 | affected | |
| linux-kernel | 3.15 | affected | |
| linux-kernel | 3.15.1 | affected | |
| linux-kernel | 3.15.2 | affected | |
| linux-kernel | 3.15.3 | affected | |
| linux-kernel | 3.15.4 | affected | |
| linux-kernel | 3.15.5 | affected | |
| linux-kernel | 3.15.6 | affected | |
| linux-kernel | 3.15.7 | affected | |
| linux-kernel | 3.15.8 | affected | |
| linux-kernel | 3.16.0 | affected | |
| linux-kernel | 3.16.1 | affected | |
| linux-kernel | 3.17 | affected | |
| linux-kernel | 3.17.1 | affected | |
| linux-kernel | 3.17.2 | affected | |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147864.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147973.html
- http://thread.gmane.org/gmane.linux.man/7385/
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:058
- http://www.openwall.com/lists/oss-security/2014/11/20/4
- http://www.securityfocus.com/bid/71154
- http://www.ubuntu.com/usn/USN-2515-1
- http://www.ubuntu.com/usn/USN-2516-1
- http://www.ubuntu.com/usn/USN-2517-1
- http://www.ubuntu.com/usn/USN-2518-1
- https://security-tracker.debian.org/tracker/CVE-2014-8989
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.