Access Restriction Bypass Affecting kernel-uek-firmware package, versions <0:3.8.13-98.el6uek


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (5th percentile)

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  • Snyk IDSNYK-ORACLE6-KERNELUEKFIRMWARE-2505241
  • published10 Apr 2022
  • disclosed30 Nov 2014

Introduced: 30 Nov 2014

CVE-2014-8989  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Oracle:6 kernel-uek-firmware to version 0:3.8.13-98.el6uek or higher.
This issue was patched in ELSA-2015-3064.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek-firmware package and not the kernel-uek-firmware package as distributed by Oracle. See How to fix? for Oracle:6 relevant fixed versions and status.

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.

CVSS Scores

version 3.1