CVE-2023-31356
kernel: hw:amd: Incomplete system memory cleanup in SEV firmware corrupt guest private memory
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 13, 2024
Updated · November 21, 2025
Description
A flaw was found in hw in the SNP-SEV firmware. This flaw could allow a privileged attacker to corrupt a guest's private memory, potentially resulting in the loss of data integrity of the guest.
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 do not 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 · 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
CWE not specified