CVE-2021-20321
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- CVE-2021-20321
CVE Details
| Release Date: | 2022-02-18 | |
| Impact: | None | What is this? |
Description
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.
See more information about CVE-2021-20321 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 metrics
| Base Score: | 4.7 |
| Vector String: | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Version: | 3.0 |
| Attack Vector: | Local |
| Attack Complexity: | High |
| Privileges Required: | Low |
| User Interaction: | None |
| Scope: | Unchanged |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 6 (kernel-uek) | ELSA-2022-9088 | 2022-02-01 |
| Oracle Linux version 7 (kernel-uek) | ELSA-2022-9088 | 2022-02-01 |
| Oracle Linux version 8 (kernel) | ELSA-2021-5227 | 2021-12-22 |
| Oracle VM version 3 (kernel-uek) | OVMSA-2022-0007 | 2022-02-01 |
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