CVE Database›Document archive›CVE-2023-46813

CVE-2023-46813

kernel: SEV-ES local priv escalation

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Severity

Moderate

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · October 27, 2023

Updated · June 28, 2026

Description

A buffer overflow and null pointer dereference flaw was found in the Linux kernel's Secure Encrypted Virtualization (SEV) implementation for AMD functionality. This issue occurs when a user in SEV guest VM accesses MMIO registers, which could allow a local user to crash the system or escalate their privileges on the system.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-269 · Improper Privilege Management