CVE-2023-46813
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- CVE-2023-46813
CVE Details
| Release Date: | 2023-10-27 | |
| Impact: | Moderate | What is this? |
Description
An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it.
See more information about CVE-2023-46813 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: | 7.0 |
| Vector String: | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Version: | 3.0 |
| Attack Vector: | Local |
| Attack Complexity: | High |
| 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 8 (kernel) | ELSA-2024-0897 | 2024-03-06 |
| Oracle Linux version 8 (kernel) | ELSA-2024-12187 | 2024-02-29 |
| Oracle Linux version 8 (kernel-uek) | ELSA-2024-12159 | 2024-02-13 |
| Oracle Linux version 9 (kernel) | ELSA-2024-0461 | 2024-03-07 |
| Oracle Linux version 9 (kernel) | ELSA-2024-12094 | 2024-01-26 |
| Oracle Linux version 9 (kernel-uek) | ELSA-2024-12159 | 2024-02-13 |
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