Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Oracle Corporation / Oracle Linux | affected Oracle Linux: 7; affected Oracle Linux: 8; affected Oracle Linux: 9 |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/linus/543ce63b664e2c2f9533d089a4664b559c3e6b5b
- https://linux.oracle.com/cve/CVE-2022-21505.html
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.