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.
Metrics
No CVSS v4.0
No CVSS v3.1
No CVSS v3.0
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
Key SSVC decision points have not yet been added.
Affected Vendors & Products
Vendors | Products |
---|---|
Linux |
|
Configuration 1 [-]
|
No data.
References
History
No history.

Status: PUBLISHED
Assigner: mitre
Published: 2014-11-30T01:00:00
Updated: 2024-08-06T13:33:12.646Z
Reserved: 2014-11-19T00:00:00
Link: CVE-2014-8989

No data.

Status : Deferred
Published: 2014-11-30T01:59:07.570
Modified: 2025-04-12T10:46:40.837
Link: CVE-2014-8989
