CVE-2023-31347
kernel: Insufficient check may lead to an incorrect TSC
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 19, 2023
Updated · November 21, 2025
Description
A flaw was found in some AMD Hardware due to a code bug in the Secure_TSC, SEV firmware. This flaw allows an attacker with high privileges to cause a guest to observe an incorrect TSC when Secure TSC is enabled, potentially resulting in a loss of guest integrity.
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 · 2.3CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
CWE-168 · Improper Handling of Inconsistent Special Elements