Improper Authentication Affecting kernel-cross-headers package, versions <0:4.18.0-372.9.1.el8


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-ALMALINUX8-KERNELCROSSHEADERS-5640165
  • published28 May 2023
  • disclosed10 May 2022

Introduced: 10 May 2022

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

How to fix?

Upgrade AlmaLinux:8 kernel-cross-headers to version 0:4.18.0-372.9.1.el8 or higher.
This issue was patched in ALSA-2022:1988.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-cross-headers package and not the kernel-cross-headers package as distributed by AlmaLinux. See How to fix? for AlmaLinux: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