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
All of
amd epyc 8024p firmware<genoapi_1.0.0.2
amd epyc 8024p
All of
amd epyc 8124pn firmware<genoapi_1.0.0.2
amd epyc 8124pn
All of
amd epyc 8124p firmware<genoapi_1.0.0.2
amd epyc 8124p
All of
Amd Epyc Server Firmware<genoapi_1.0.0.2
amd epyc 8224pn
All of
amd epyc 8224p firmware<genoapi_1.0.0.2
amd epyc 8224p
All of
amd epyc 8324pn firmware<genoapi_1.0.0.2
amd epyc 8324pn
All of
amd epyc 8324p firmware<genoapi_1.0.0.2
amd epyc 8324p
All of
Amd Epyc Server Firmware<genoapi_1.0.0.2
amd epyc 8434pn
All of
amd epyc 8434p firmware<genoapi_1.0.0.2
amd epyc 8434p
All of
amd epyc 8534pn firmware<genoapi_1.0.0.2
amd epyc 8534pn
All of
amd epyc 8534p firmware<genoapi_1.0.0.2
amd epyc 8534p
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
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
All of
AMD EPYC 9384X Firmware<genoapi_1.0.0.2
AMD EPYC 9384X
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
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
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 9354 Firmware
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
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
All of
AMD EPYC 9554 Firmware<genoapi_1.0.0.2
AMD EPYC 9554
All of
AMD EPYC 9554P Firmware<genoapi_1.0.0.2
AMD EPYC 9554P Firmware
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
All of
Amd Epyc Server Firmware<milanpi_1.0.0.5
amd epyc 7203
All of
Amd Epyc Server Firmware<milanpi_1.0.0.5
amd epyc 7203p
All of
AMD EPYC 72F3 Firmware<milanpi_1.0.0.5
AMD EPYC 72F3 Firmware
All of
Amd Epyc Server Firmware<milanpi_1.0.0.5
amd epyc 7303
All of
Amd Epyc Server Firmware<milanpi_1.0.0.5
amd epyc 7303p
All of
Amd Epyc Server Firmware<milanpi_1.0.0.5
AMD EPYC 7313P
All of
AMD EPYC 7313P Firmware<milanpi_1.0.0.5
AMD EPYC 7313P
All of
Amd Epyc Server Firmware<milanpi_1.0.0.5
AMD EPYC 7343
All of
AMD EPYC 73F3 Firmware<milanpi_1.0.0.5
AMD EPYC 73F3
All of
AMD EPYC 7373X Firmware<milanpi_1.0.0.5
AMD EPYC 7373X
All of
AMD EPYC 7413 Firmware<milanpi_1.0.0.5
AMD EPYC 7413 Firmware
All of
AMD EPYC 7443 Firmware<milanpi_1.0.0.5
AMD EPYC 7443
All of
AMD EPYC 7443P Firmware<milanpi_1.0.0.5
AMD EPYC 7443P
All of
AMD EPYC 74F3 Firmware<milanpi_1.0.0.5
AMD EPYC 74F3
All of
Amd Epyc Server Firmware<milanpi_1.0.0.5
AMD EPYC 7453
All of
AMD EPYC 7473X Firmware<milanpi_1.0.0.5
AMD EPYC 7473X
All of
AMD EPYC 7513 Firmware<milanpi_1.0.0.5
AMD EPYC 7513
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
All of
AMD EPYC 7573X Firmware<milanpi_1.0.0.5
AMD EPYC 7573X
All of
AMD EPYC 7643 Firmware<milanpi_1.0.0.5
AMD EPYC 7643
All of
AMD EPYC 7773X Firmware<milanpi_1.0.0.5
AMD EPYC 7773X
All of
Amd Epyc Server Firmware<milanpi_1.0.0.5
amd epyc 7643p
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
All of
AMD EPYC 7713P Firmware<milanpi_1.0.0.5
AMD EPYC 7713
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
All of
AMD EPYC 7F72 Firmware<romepi_1.0.0.g
AMD EPYC 7F72
All of
AMD EPYC 7F52 Firmware<romepi_1.0.0.g
AMD EPYC 7F52
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 7742 firmware
All of
AMD EPYC 7702 Firmware<romepi_1.0.0.g
AMD EPYC 7702p
All of
AMD EPYC 7702 Firmware<romepi_1.0.0.g
AMD EPYC 7702
All of
AMD EPYC 7662 Firmware<romepi_1.0.0.g
AMD EPYC 7662
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 Embedded 7552
All of
AMD EPYC 7542 Firmware<romepi_1.0.0.g
AMD EPYC 7542
All of
AMD EPYC 7532 Firmware<romepi_1.0.0.g
AMD EPYC 7532
All of
AMD EPYC 7502P Firmware<romepi_1.0.0.g
AMD EPYC 7502P
All of
Amd Epyc Server Firmware<romepi_1.0.0.g
AMD EPYC 7502
All of
AMD EPYC 7452 Firmware<romepi_1.0.0.g
AMD EPYC 7452
All of
AMD EPYC 7402P Firmware<romepi_1.0.0.g
AMD EPYC 7402P
All of
Amd Epyc Server Firmware<romepi_1.0.0.g
AMD EPYC 7402
All of
AMD EPYC 7352 firmware<romepi_1.0.0.g
AMD EPYC 7352
All of
AMD EPYC 7302P Firmware<romepi_1.0.0.g
AMD EPYC 7302P
All of
Amd Epyc Server Firmware<romepi_1.0.0.g
AMD EPYC 7302P
All of
AMD EPYC 7282 Firmware<romepi_1.0.0.g
AMD EPYC 7282
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 Server Firmware<naplespi_1.0.0.k
AMD EPYC 7551 Firmware
All of
AMD EPYC 7501 firmware<naplespi_1.0.0.k
AMD EPYC 7501
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
All of
Amd Epyc Server Firmware<naplespi_1.0.0.k
AMD EPYC 7401
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 7351P 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 7281 Firmware
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
All of
Amd Epyc Server Firmware<naplespi_1.0.0.k
AMD EPYC 7001

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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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