CVE-2021-20321
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-20321
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-20321.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-20321
- Aliases
-
- A-222644279
- PUB-A-222644279
- Downstream
- Related
- Published
- 2022-02-18T18:15:08Z
- Modified
- 2025-08-09T20:01:27Z
- Severity
-
- 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users do rename in specific way with OverlayFS. A local user could use this flaw to crash the system.
- References