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
AV:L/AC:L/Au:N/C:P/I:P/A:P
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.
MITRE
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
Vulnrichment
No data.
NVD
Status : Modified
Published: 2014-11-30T01:59:07.570
Modified: 2017-01-03T02:59:22.313
Link: CVE-2014-8989
Redhat