Improper Authentication Affecting kernel-uek package, versions <0:5.4.17-2136.308.7.el8uek


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-ORACLE8-KERNELUEK-2870367
  • published18 May 2022
  • disclosed23 Mar 2022

Introduced: 23 Mar 2022

CVE-2021-4197  (opens in a new tab)
CWE-287  (opens in a new tab)

How to fix?

Upgrade Oracle:8 kernel-uek to version 0:5.4.17-2136.308.7.el8uek or higher.
This issue was patched in ELSA-2022-9479.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uek package and not the kernel-uek package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system.

CVSS Scores

version 3.1