DEBIAN-CVE-2014-8989

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2014-8989
Published: 30 Nov 2014, 01:59
Last modified:28 Apr 2026, 20:13

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

30 Nov 2014, 01:59
Published
Vulnerability first disclosed
28 Apr 2026, 20:13
Last Modified
Vulnerability information updated

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.

Affected Systems

  • debian•linux

    < 3.16.7-ckt4-1 | < 3.16.7-ckt4-1 | < 3.16.7-ckt4-1 | < 3.16.7-ckt4-1

References (1)