VULNERABILITY INTELLIGENCE

CVE-2022-21505

CVSS score6.7 MEDIUM
EPSS probability0.20%
CISA KEVNot currently listed
Published2024-12-24
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Description

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).

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-346

Primary references