Authentication Bypass by Primary Weakness Affecting kernel-rt-modules-extra package, versions <0:5.14.0-284.11.1.rt14.296.el9_2


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

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  • Snyk IDSNYK-RHEL9-KERNELRTMODULESEXTRA-7864526
  • published3 Sept 2024
  • disclosed19 Jul 2022

Introduced: 19 Jul 2022

CVE-2022-21505  (opens in a new tab)
CWE-305  (opens in a new tab)

How to fix?

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

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 RHEL. See How to fix? for RHEL: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