CVE-2022-28735
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- CVE-2022-28735
CVE Details
| Release Date: | 2023-07-20 | |
| Impact: | Moderate | What is this? |
Description
The GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain.
See more information about CVE-2022-28735 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: | 7.8 |
| Vector String: | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Version: | 3.1 |
| Attack Vector: | Local |
| Attack Complexity: | Low |
| Privileges Required: | Low |
| User Interaction: | None |
| Scope: | Unchanged |
| Confidentiality Impact: | High |
| Integrity Impact: | High |
| Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 10 (kernel-uek) | ELSA-2025-20480 | 2025-07-17 |
| Oracle Linux version 10 (kernel-uek) | ELSA-2025-20530 | 2025-08-18 |
| Oracle Linux version 7 (grub2) | ELSA-2022-9469 | 2022-06-07 |
| Oracle Linux version 7 (grub2) | ELSA-2023-12952 | 2023-10-27 |
| Oracle Linux version 8 (grub2) | ELSA-2022-5095 | 2022-07-04 |
| Oracle Linux version 8 (grub2) | ELSA-2022-9471 | 2022-06-07 |
| Oracle Linux version 8 (grub2) | ELSA-2022-9595 | 2022-07-14 |
| Oracle Linux version 9 (grub2) | ELSA-2022-5099 | 2022-06-30 |
| Oracle Linux version 9 (grub2) | ELSA-2022-9596 | 2022-07-14 |
| Oracle Linux version 9 (kernel-uek) | ELSA-2025-20480 | 2025-07-17 |
| Oracle Linux version 9 (kernel-uek) | ELSA-2025-20530 | 2025-08-18 |
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