Improper Ownership Management Affecting kernel-rt package, versions <0:5.14.0-162.23.1.rt21.186.el9_1


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.23% (62nd percentile)

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  • Snyk IDSNYK-RHEL9-KERNELRT-5584457
  • published22 Mar 2023
  • disclosed24 Jan 2023

Introduced: 24 Jan 2023

CVE-2023-0386  (opens in a new tab)
CWE-282  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade RHEL:9 kernel-rt to version 0:5.14.0-162.23.1.rt21.186.el9_1 or higher.
This issue was patched in RHSA-2023:1691.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt package and not the kernel-rt package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.

CVSS Scores

version 3.1