CVE-2023-31347

Description

Due to a code bug in Secure_TSC, SEV firmware may allow 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.  

Category

4.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.04%
Vendor Advisory amd.com
Affected: AMD 3rd Gen AMD EPYC™ Processors
Affected: AMD 4th Gen AMD EPYC™ Processors
Published at:
Updated at:

References

Link Tags
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3007 vendor advisory broken link

Frequently Asked Questions

What is the severity of CVE-2023-31347?
CVE-2023-31347 has been scored as a medium severity vulnerability.
How to fix CVE-2023-31347?
To fix CVE-2023-31347, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-31347 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-31347 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-31347?
CVE-2023-31347 affects AMD 3rd Gen AMD EPYC™ Processors, AMD 4th Gen AMD EPYC™ Processors .
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