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.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2014-8816 | 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. |
Ubuntu USN |
USN-2515-1 | Linux kernel (Trusty HWE) vulnerabilities |
Ubuntu USN |
USN-2516-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-2517-1 | Linux kernel (Utopic HWE) vulnerabilities |
Ubuntu USN |
USN-2518-1 | Linux kernel vulnerabilities |
References
History
No history.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-06T13:33:12.646Z
Reserved: 2014-11-19T00:00:00.000Z
Link: CVE-2014-8989
No data.
Status : Modified
Published: 2014-11-30T01:59:07.570
Modified: 2026-05-06T22:30:45.220
Link: CVE-2014-8989
OpenCVE Enrichment
No data.
Weaknesses
EUVD
Ubuntu USN