CVE-2023-0386 Affecting kernel-rt-modules-extra package, versions <0:4.18.0-425.19.2.rt7.230.el8_7


Severity

Recommended
0.0
high
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.23% (62nd percentile)

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  • Snyk IDSNYK-ALMALINUX8-KERNELRTMODULESEXTRA-5634476
  • published28 May 2023
  • disclosed11 Apr 2023

Introduced: 11 Apr 2023

CVE-2023-0386  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 kernel-rt-modules-extra to version 0:4.18.0-425.19.2.rt7.230.el8_7 or higher.
This issue was patched in ALSA-2023:1584.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules-extra package and not the kernel-rt-modules-extra package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 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