CVE-2022-21505 Affecting kernel-rt-debug-modules-extra package, versions <0:5.14.0-284.11.1.rt14.296.el9_2


Severity

Recommended
high

Based on AlmaLinux security rating.

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  • Snyk IDSNYK-ALMALINUX9-KERNELRTDEBUGMODULESEXTRA-5621078
  • published28 May 2023
  • disclosed9 May 2023

Introduced: 9 May 2023

CVE-2022-21505  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 kernel-rt-debug-modules-extra to version 0:5.14.0-284.11.1.rt14.296.el9_2 or higher.
This issue was patched in ALSA-2023:2148.

NVD Description

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

In the linux kernel, if IMA appraisal is used with the "ima_appraise=log" boot param, lockdown can be defeated with kexec on any machine when Secure Boot is disabled or unavailable. IMA prevents setting "ima_appraise=log" from the boot param when Secure Boot is enabled, but this does not cover cases where lockdown is used without Secure Boot. CVSS 3.1 Base Score 6.7 (Confidentiality, Integrity, Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).

CVSS Scores

version 3.1