CVE-2023-46813

CVE Details

Release Date:

2023-10-27

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

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	7	Base Metrics:	AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Access Vector:	Local network	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

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team