high
7.5
CWE
367
Advisory Published
Updated

CVE-2023-20578

First published: Tue Aug 13 2024(Updated: )

A TOCTOU (Time-Of-Check-Time-Of-Use) in SMM may allow an attacker with ring0 privileges and access to the BIOS menu or UEFI shell to modify the communications buffer potentially resulting in arbitrary code execution.

Credit: psirt@amd.com

Affected SoftwareAffected VersionHow to fix
All of
AMD EPYC 8024PN Firmware<genoapi_1.0.0.2
AMD EPYC 8024PN Firmware
All of
AMD EPYC 8024PN Firmware<genoapi_1.0.0.2
AMD EPYC 8024PN Firmware
All of
AMD EPYC 8124PN<genoapi_1.0.0.2
AMD EPYC 8124PN Firmware
All of
AMD EPYC Firmware<genoapi_1.0.0.2
AMD EPYC 8124P Firmware
All of
AMD EPYC 8224PN Firmware<genoapi_1.0.0.2
AMD EPYC 8224PN Firmware
All of
AMD EPYC 8224PN Firmware<genoapi_1.0.0.2
AMD EPYC 8224P Firmware
All of
AMD EPYC 8324PN Firmware<genoapi_1.0.0.2
AMD EPYC 8324PN Firmware
All of
AMD EPYC 8324P Firmware<genoapi_1.0.0.2
AMD EPYC 8324P Firmware
All of
AMD EPYC 8434P Firmware<genoapi_1.0.0.2
AMD EPYC 8434PN Firmware
All of
AMD EPYC 8434P Firmware<genoapi_1.0.0.2
AMD EPYC 8434P Firmware
All of
AMD EPYC 8534PN Firmware<genoapi_1.0.0.2
AMD EPYC 8534PN Firmware
All of
AMD EPYC Firmware<genoapi_1.0.0.2
AMD EPYC 8534P Firmware
All of
AMD EPYC 9734 Firmware<genoapi_1.0.0.2
AMD EPYC 9734 Firmware
All of
AMD EPYC 9754S Firmware<genoapi_1.0.0.2
AMD EPYC 9754S Firmware
All of
Amd Epyc Server Firmware<genoapi_1.0.0.2
AMD EPYC 9754 Firmware
All of
AMD EPYC 9184X Firmware<genoapi_1.0.0.2
AMD EPYC 9184X firmware
All of
AMD EPYC 9384X Firmware<genoapi_1.0.0.2
AMD EPYC 9384X Firmware
All of
AMD EPYC 9684X Firmware<genoapi_1.0.0.2
AMD EPYC 9684X Firmware
All of
AMD EPYC 9124 Firmware<genoapi_1.0.0.2
AMD EPYC 9124 Firmware
All of
AMD EPYC 9174F Firmware<genoapi_1.0.0.2
AMD EPYC 9174F Firmware
All of
AMD EPYC 9224 Firmware<genoapi_1.0.0.2
AMD EPYC 9224
All of
AMD EPYC 9254 Firmware<genoapi_1.0.0.2
AMD EPYC 9254 Firmware
All of
AMD EPYC 9274F Firmware<genoapi_1.0.0.2
AMD EPYC 9274F Firmware
All of
AMD EPYC 9334 firmware<genoapi_1.0.0.2
AMD EPYC 9334 firmware
All of
AMD EPYC 9354 Firmware<genoapi_1.0.0.2
AMD EPYC 9354P
All of
AMD EPYC 9354P Firmware<genoapi_1.0.0.2
AMD EPYC 9354P
All of
AMD EPYC 9374F Firmware<genoapi_1.0.0.2
AMD EPYC 9374F Firmware
All of
AMD EPYC 9454P Firmware<genoapi_1.0.0.2
AMD EPYC 9454P
All of
AMD EPYC 9454P Firmware<genoapi_1.0.0.2
AMD EPYC 9454P Firmware
All of
AMD EPYC 9474F Firmware<genoapi_1.0.0.2
AMD Epyc 9474F Firmware
All of
AMD EPYC 9534 Firmware<genoapi_1.0.0.2
AMD EPYC 9534 Firmware
All of
AMD EPYC 9554P Firmware<genoapi_1.0.0.2
AMD EPYC 9554 Firmware
All of
AMD EPYC 9554P Firmware<genoapi_1.0.0.2
AMD EPYC 9554P
All of
AMD EPYC 9634 Firmware<genoapi_1.0.0.2
AMD EPYC 9634 Firmware
All of
AMD EPYC 9654 Firmware<genoapi_1.0.0.2
AMD EPYC 9654 firmware
All of
AMD EPYC 9654P Firmware<genoapi_1.0.0.2
AMD EPYC 9654P Firmware
All of
AMD EPYC 7203 Firmware<milanpi_1.0.0.5
AMD EPYC 7203 Firmware
All of
AMD EPYC Firmware<milanpi_1.0.0.5
AMD EPYC 7203P Firmware
All of
AMD EPYC 72F3 Firmware<milanpi_1.0.0.5
AMD EPYC 72F3 Firmware
All of
AMD EPYC 7303 Firmware<milanpi_1.0.0.5
AMD EPYC 7303 Firmware
All of
AMD EPYC 7303P Firmware<milanpi_1.0.0.5
AMD EPYC 7303P
All of
AMD EPYC Firmware<milanpi_1.0.0.5
AMD EPYC 7313 Firmware
All of
AMD EPYC 7313P Firmware<milanpi_1.0.0.5
AMD EPYC 7313P Firmware
All of
Amd Epyc Server Firmware<milanpi_1.0.0.5
AMD EPYC 7343 Firmware
All of
AMD EPYC 73F3 Firmware<milanpi_1.0.0.5
AMD EPYC 73F3 Firmware
All of
AMD EPYC 7373X Firmware<milanpi_1.0.0.5
AMD EPYC 7373X Firmware
All of
AMD EPYC 7413 Firmware<milanpi_1.0.0.5
AMD EPYC 7413 Firmware
All of
AMD EPYC 7443P Firmware<milanpi_1.0.0.5
AMD EPYC 7443P
All of
AMD EPYC 7443P Firmware<milanpi_1.0.0.5
AMD EPYC 7443P Firmware
All of
AMD EPYC 74F3 Firmware<milanpi_1.0.0.5
AMD EPYC 74F3 Firmware
All of
Amd Epyc Server Firmware<milanpi_1.0.0.5
AMD EPYC Server
All of
AMD EPYC 7473X Firmware<milanpi_1.0.0.5
AMD EPYC 7473X Firmware
All of
AMD EPYC 7513 Firmware<milanpi_1.0.0.5
AMD EPYC 7513 Firmware
All of
Amd Epyc Server Firmware<milanpi_1.0.0.5
AMD EPYC 7543 Firmware
All of
AMD EPYC 7543P Firmware<milanpi_1.0.0.5
AMD EPYC 7543P Firmware
All of
AMD EPYC 75F3 Firmware<milanpi_1.0.0.5
AMD EPYC 75F3 Firmware
All of
AMD EPYC 7573X Firmware<milanpi_1.0.0.5
AMD EPYC 7573X Firmware
All of
AMD EPYC 7643P Firmware<milanpi_1.0.0.5
AMD EPYC 7643 Firmware
All of
AMD EPYC 7773X Firmware<milanpi_1.0.0.5
AMD EPYC 7773X Firmware
All of
AMD EPYC Firmware<milanpi_1.0.0.5
AMD EPYC 7643P Firmware
All of
AMD EPYC 7663 Firmware<milanpi_1.0.0.5
AMD EPYC 7663 Firmware
All of
AMD EPYC 7663P Firmware<milanpi_1.0.0.5
AMD EPYC 7663P Firmware
All of
AMD EPYC 7713P Firmware<milanpi_1.0.0.5
AMD EPYC 7713 Firmware
All of
AMD EPYC 7713P Firmware<milanpi_1.0.0.5
AMD EPYC 7713P Firmware
All of
AMD EPYC 7763 Firmware<milanpi_1.0.0.5
AMD EPYC 7763 Firmware
All of
AMD EPYC 7H12 Firmware<romepi_1.0.0.g
AMD EPYC 7H12 Firmware
All of
AMD EPYC 7F72<romepi_1.0.0.g
AMD EPYC 7F72 Firmware
All of
AMD EPYC 7F52 Firmware<romepi_1.0.0.g
AMD EPYC 7F52 Firmware
All of
AMD EPYC 7F32 Firmware<romepi_1.0.0.g
AMD EPYC 7F32 Firmware
All of
AMD EPYC 7742 Firmware<romepi_1.0.0.g
AMD EPYC Server
All of
AMD EPYC 7702 Firmware<romepi_1.0.0.g
AMD EPYC 7702P
All of
AMD EPYC 7702p firmware<romepi_1.0.0.g
AMD EPYC Server
All of
AMD EPYC 7662 Firmware<romepi_1.0.0.g
AMD EPYC 7662 Firmware
All of
AMD EPYC 7642 Firmware<romepi_1.0.0.g
AMD EPYC 7642 Firmware
All of
AMD EPYC 7552 Firmware<romepi_1.0.0.g
AMD EPYC 7552 Firmware
All of
AMD EPYC 7542 Firmware<romepi_1.0.0.g
AMD EPYC Server
All of
AMD EPYC 7532 Firmware<romepi_1.0.0.g
AMD EPYC 7532 Firmware
All of
AMD EPYC 7502P Firmware<romepi_1.0.0.g
AMD EPYC 7502P Firmware
All of
AMD EPYC 7502 Firmware<romepi_1.0.0.g
AMD EPYC 7502 firmware
All of
AMD EPYC 7452 Firmware<romepi_1.0.0.g
AMD EPYC Server
All of
AMD EPYC 7402P Firmware<romepi_1.0.0.g
AMD EPYC 7402P Firmware
All of
Amd Epyc Server Firmware<romepi_1.0.0.g
AMD EPYC 7402 Firmware
All of
AMD EPYC Firmware<romepi_1.0.0.g
AMD EPYC 7352 firmware
All of
AMD EPYC 7302P Firmware<romepi_1.0.0.g
AMD EPYC 7302P Firmware
All of
Amd Epyc Server Firmware<romepi_1.0.0.g
AMD EPYC 7302 Firmware
All of
AMD EPYC 7282 Firmware<romepi_1.0.0.g
AMD EPYC 7282 Firmware
All of
AMD EPYC 7272 firmware<romepi_1.0.0.g
AMD EPYC 7272 firmware
All of
AMD EPYC 7262 Firmware<romepi_1.0.0.g
AMD EPYC 7262 Firmware
All of
AMD EPYC 7252 Firmware<romepi_1.0.0.g
AMD EPYC 7252 Firmware
All of
AMD EPYC 7232p firmware<romepi_1.0.0.g
AMD EPYC 7232p firmware
All of
AMD EPYC 7601 Firmware<naplespi_1.0.0.k
AMD EPYC 7601 Firmware
All of
AMD EPYC 7551P Firmware<naplespi_1.0.0.k
AMD EPYC 7551P Firmware
All of
AMD EPYC 7551P Firmware<naplespi_1.0.0.k
AMD EPYC 7551 Firmware
All of
AMD EPYC 7501 Firmware<naplespi_1.0.0.k
AMD EPYC Server
All of
AMD EPYC 7451 Firmware<naplespi_1.0.0.k
AMD EPYC 7451 Firmware
All of
AMD EPYC 7401P Firmware<naplespi_1.0.0.k
AMD EPYC 7401P Firmware
All of
AMD EPYC 7401P Firmware<naplespi_1.0.0.k
AMD EPYC 7401 Firmware
All of
AMD EPYC 7371 Firmware<naplespi_1.0.0.k
AMD EPYC 7371 Firmware
All of
AMD EPYC 7351P Firmware<naplespi_1.0.0.k
AMD EPYC 7351P Firmware
All of
AMD EPYC 7351P Firmware<naplespi_1.0.0.k
AMD EPYC 7351 Firmware
All of
Amd Epyc Server Firmware<naplespi_1.0.0.k
AMD EPYC 7301 Firmware
All of
Amd Epyc Server Firmware<naplespi_1.0.0.k
AMD EPYC Server
All of
AMD EPYC 7261 Firmware<naplespi_1.0.0.k
AMD EPYC 7261
All of
AMD EPYC 7251 Firmware<naplespi_1.0.0.k
AMD EPYC 7251 Firmware
All of
Amd Epyc Server Firmware<naplespi_1.0.0.k
AMD EPYC 7001 Firmware

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2023-20578?

    CVE-2023-20578 has a severity rating of critical due to its potential for arbitrary code execution by an attacker with ring0 privileges.

  • How do I fix CVE-2023-20578?

    To fix CVE-2023-20578, you should update your AMD Epyc firmware to a version that is not affected, specifically above genoapi_1.0.0.2 for designated models.

  • Which devices are affected by CVE-2023-20578?

    CVE-2023-20578 affects various AMD Epyc firmware versions prior to genoapi_1.0.0.2 on multiple Amd Epyc models.

  • What is a TOCTOU vulnerability in the context of CVE-2023-20578?

    A TOCTOU vulnerability, as seen in CVE-2023-20578, refers to the potential for an attacker to exploit a race condition between checking and using a resource.

  • Is CVE-2023-20578 currently being exploited in the wild?

    As of now, there are no confirmed reports of CVE-2023-20578 being actively exploited in the wild.

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