CVE-2021-4002
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- CVE-2021-4002
CVE Details
| Release Date: | 2022-03-03 | |
| Impact: | None | What is this? |
Description
A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.
See more information about CVE-2021-4002 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: | 4.4 |
| Vector String: | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
| Version: | 3.0 |
| Attack Vector: | Local |
| Attack Complexity: | Low |
| Privileges Required: | Low |
| User Interaction: | None |
| Scope: | Unchanged |
| Confidentiality Impact: | Low |
| Integrity Impact: | Low |
| Availability Impact: | None |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 6 (kernel-uek) | ELSA-2022-9348 | 2022-05-03 |
| Oracle Linux version 7 (kernel-uek) | ELSA-2022-9313 | 2022-04-25 |
| Oracle Linux version 7 (kernel-uek) | ELSA-2022-9348 | 2022-05-03 |
| Oracle Linux version 7 (kernel-uek-container) | ELSA-2022-9314 | 2022-04-25 |
| Oracle Linux version 8 (kernel) | ELSA-2022-1988 | 2022-05-17 |
| Oracle VM version 3 (kernel-uek) | OVMSA-2022-0014 | 2022-05-03 |
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