medium
4.9
CWE
682
Advisory Published
Updated

CVE-2023-31347

First published: Tue Feb 13 2024(Updated: )

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.  

Credit: psirt@amd.com

Affected SoftwareAffected VersionHow to fix
All of
AMD EPYC 7773X Firmware<milanpi_1.0.0.c
AMD EPYC 7773X Firmware
All of
AMD EPYC 7763 Firmware<milanpi_1.0.0.c
AMD EPYC 7763 Firmware
All of
AMD EPYC 7713P Firmware<milanpi_1.0.0.c
AMD EPYC 7713 Firmware
All of
AMD EPYC 7713P Firmware
AMD EPYC 7713P Firmware
All of
AMD EPYC 7663 Firmware<milanpi_1.0.0.c
AMD EPYC 7663 Firmware
All of
AMD EPYC 7663P Firmware<milanpi_1.0.0.c
AMD EPYC 7663P Firmware
All of
AMD EPYC 7643P Firmware<milanpi_1.0.0.c
AMD EPYC 7643 Firmware
All of
AMD EPYC Firmware<milanpi_1.0.0.c
AMD EPYC 7643P Firmware
All of
AMD EPYC 7573X Firmware<milanpi_1.0.0.c
AMD EPYC 7573X Firmware
All of
AMD EPYC 75F3 Firmware<milanpi_1.0.0.c
AMD EPYC 75F3 Firmware
All of
Amd Epyc Server Firmware<milanpi_1.0.0.c
AMD EPYC 7543 Firmware
All of
AMD EPYC 7543P Firmware<milanpi_1.0.0.c
AMD EPYC 7543P Firmware
All of
AMD EPYC 7513 Firmware<milanpi_1.0.0.c
AMD EPYC 7513 Firmware
All of
Amd Epyc Server Firmware<milanpi_1.0.0.c
AMD EPYC Server
All of
AMD EPYC 7473X Firmware<milanpi_1.0.0.c
AMD EPYC 7473X Firmware
All of
AMD EPYC 74F3 Firmware<milanpi_1.0.0.c
AMD EPYC 74F3 Firmware
All of
AMD EPYC 7443P Firmware<milanpi_1.0.0.c
AMD EPYC 7443P
All of
AMD EPYC 7443P Firmware<milanpi_1.0.0.c
AMD EPYC 7443P Firmware
All of
AMD EPYC 7413 Firmware<milanpi_1.0.0.c
AMD EPYC 7413 Firmware
All of
AMD EPYC 7373X Firmware<milanpi_1.0.0.c
AMD EPYC 7373X Firmware
All of
AMD EPYC 73F3 Firmware<milanpi_1.0.0.c
AMD EPYC 73F3 Firmware
All of
Amd Epyc Server Firmware<milanpi_1.0.0.c
AMD EPYC 7343 Firmware
All of
AMD EPYC Firmware<milanpi_1.0.0.c
AMD EPYC 7313 Firmware
All of
AMD EPYC 7313P Firmware<milanpi_1.0.0.c
AMD EPYC 7313P Firmware
All of
AMD EPYC 7303 Firmware<milanpi_1.0.0.c
AMD EPYC 7303 Firmware
All of
AMD EPYC 7303P Firmware<milanpi_1.0.0.c
AMD EPYC 7303P
All of
AMD EPYC 72F3 Firmware<milanpi_1.0.0.c
AMD EPYC 72F3 Firmware
All of
AMD EPYC 7203 Firmware<milanpi_1.0.0.c
AMD EPYC 72F3 Firmware
All of
AMD EPYC Firmware<milanpi_1.0.0.c
AMD EPYC 7203P Firmware
All of
AMD EPYC 8024PN Firmware<genoapi_1.0.0.b
AMD EPYC 8024PN Firmware
All of
AMD EPYC 8024PN Firmware<genoapi_1.0.0.b
AMD EPYC 8024PN Firmware
All of
AMD EPYC Firmware<genoapi_1.0.0.b
AMD EPYC 8124P Firmware
All of
AMD EPYC 8124PN<genoapi_1.0.0.b
AMD EPYC 8124PN Firmware
All of
AMD EPYC 8224PN Firmware<genoapi_1.0.0.b
AMD EPYC 8224P Firmware
All of
AMD EPYC 8224PN Firmware<genoapi_1.0.0.b
AMD EPYC 8224PN Firmware
All of
AMD EPYC 8324P Firmware<genoapi_1.0.0.b
AMD EPYC 8324P Firmware
All of
AMD EPYC 8324PN Firmware<genoapi_1.0.0.b
AMD EPYC 8324PN Firmware
All of
AMD EPYC 8434P Firmware<genoapi_1.0.0.b
AMD EPYC 8434P Firmware
All of
AMD EPYC 8434P Firmware<genoapi_1.0.0.b
AMD EPYC 8434PN Firmware
All of
AMD EPYC Firmware<genoapi_1.0.0.b
AMD EPYC 8534P Firmware
All of
AMD EPYC 8534PN Firmware<genoapi_1.0.0.b
AMD EPYC 8534PN Firmware
All of
AMD EPYC 9124 Firmware<genoapi_1.0.0.b
AMD EPYC 9124 Firmware
All of
AMD EPYC 9224 Firmware<genoapi_1.0.0.b
AMD EPYC 9224
All of
AMD EPYC 9254 Firmware<genoapi_1.0.0.b
AMD EPYC 9254 Firmware
All of
AMD EPYC 9334 firmware<genoapi_1.0.0.b
AMD EPYC 9334 firmware
All of
AMD EPYC 9354 Firmware<genoapi_1.0.0.b
AMD EPYC 9354P
All of
AMD EPYC 9354P Firmware<genoapi_1.0.0.b
AMD EPYC 9354P
All of
AMD EPYC 9174F Firmware<genoapi_1.0.0.b
AMD EPYC 9174F Firmware
All of
AMD EPYC 9184X Firmware<genoapi_1.0.0.b
AMD EPYC 9184X firmware
All of
AMD EPYC 9274F Firmware<genoapi_1.0.0.b
AMD EPYC 9274F Firmware
All of
AMD EPYC 9374F Firmware<genoapi_1.0.0.b
AMD EPYC 9374F Firmware
All of
AMD EPYC 9384X Firmware<genoapi_1.0.0.b
AMD EPYC 9384X Firmware
All of
AMD EPYC 9474F Firmware<genoapi_1.0.0.b
AMD Epyc 9474F Firmware
All of
AMD EPYC 9454P Firmware<genoapi_1.0.0.b
AMD EPYC 9454P
All of
AMD EPYC 9454P Firmware<genoapi_1.0.0.b
AMD EPYC 9454P Firmware
All of
AMD EPYC 9534 Firmware<genoapi_1.0.0.b
AMD EPYC 9534 Firmware
All of
AMD EPYC 9554P Firmware<genoapi_1.0.0.b
AMD EPYC 9554 Firmware
All of
AMD EPYC 9554P Firmware<genoapi_1.0.0.b
AMD EPYC 9554P
All of
AMD EPYC 9634 Firmware<genoapi_1.0.0.b
AMD EPYC 9634 Firmware
All of
AMD EPYC 9654 Firmware<genoapi_1.0.0.b
AMD EPYC 9654 firmware
All of
AMD EPYC 9654P Firmware<genoapi_1.0.0.b
AMD EPYC 9654P Firmware
All of
AMD EPYC 9684X Firmware<genoapi_1.0.0.b
AMD EPYC 9684X Firmware

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2023-31347?

    The severity of CVE-2023-31347 is categorized as high due to the potential for an attacker to compromise guest integrity.

  • How do I fix CVE-2023-31347?

    To fix CVE-2023-31347, it is recommended to update the affected AMD EPYC firmware to a version beyond milanpi_1.0.0.c.

  • Which software is affected by CVE-2023-31347?

    CVE-2023-31347 affects multiple AMD EPYC firmware versions, including 7773x, 7763, 7713, and others up to milanpi_1.0.0.c.

  • Who is vulnerable to CVE-2023-31347?

    Organizations using AMD EPYC processors with Secure TSC enabled on firmware versions up to milanpi_1.0.0.c are vulnerable to CVE-2023-31347.

  • What are the potential impacts of CVE-2023-31347?

    The potential impact of CVE-2023-31347 includes the loss of guest integrity due to incorrect TSC observations by the attacker.

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