CVE-2022-21505: Oracle Linux

Medium severity, CVSS 6.7. EPSS: 0.2% chance of exploitation in the next 30 days.

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).

Affected products

• Oracle Linux: version 7 only; version 8 only; version 9 only

Published 2024-12-24. Last modified 2026-06-17.