Vulnerability in Oracle Linux
CVE-2022-21505
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).
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (8.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 9th percentile — 8.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Oracle Linux — versions 7, 8, 9
- Oracle Corporation Linux — versions Oracle Linux: 7, Oracle Linux: 8, Oracle Linux: 9
Weakness classification (CWE)
Public proof-of-concept exploits
References
- git.kernel.org/linus/543ce63b664e2c2f9533d089a4664b559c3e6b5b (issue-tracking, Broken Link)
- linux.oracle.com/cve/CVE-2022-21505.html (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-21505?
- CVE-2022-21505 is a medium-severity vulnerability in Oracle Linux, classified under Origin Validation Error. CVSS score: 6.7/10. Published 2024-12-24.
- How severe is CVE-2022-21505?
- Medium severity. CVSS v3 base score is 6.7 out of 10.
- Is CVE-2022-21505 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.