high
7.8
CWE
787 20
Advisory Published
Updated

CVE-2021-26398: Input Validation

First published: Tue Jan 10 2023(Updated: )

Insufficient input validation in SYS_KEY_DERIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which may lead to potential arbitrary code execution.

Credit: psirt@amd.com

Affected SoftwareAffected VersionHow to fix
AMD EPYC 7H12 Firmware<romepi_1.0.0.c
AMD EPYC 7H12 Firmware
AMD EPYC 7F72<romepi_1.0.0.c
AMD EPYC 7F72 Firmware
AMD EPYC 7F52 Firmware<romepi_1.0.0.c
AMD EPYC 7F52 Firmware
AMD EPYC 7F32 Firmware<romepi_1.0.0.c
AMD EPYC 7F32 Firmware
AMD EPYC 7742 Firmware<romepi_1.0.0.c
AMD EPYC Server
AMD EPYC 7702 Firmware<romepi_1.0.0.c
AMD EPYC 7702P
AMD EPYC 7702p firmware<romepi_1.0.0.c
AMD EPYC Server
AMD EPYC 7662 Firmware<romepi_1.0.0.c
AMD EPYC 7662 Firmware
AMD EPYC 7642 Firmware<romepi_1.0.0.c
AMD EPYC 7642 Firmware
AMD EPYC 7552 Firmware<romepi_1.0.0.c
AMD EPYC 7552 Firmware
AMD EPYC 7542 Firmware<romepi_1.0.0.c
AMD EPYC Server
AMD EPYC 7532 Firmware<romepi_1.0.0.c
AMD EPYC 7532 Firmware
AMD EPYC 7502P Firmware<romepi_1.0.0.c
AMD EPYC 7502P Firmware
AMD EPYC 7502 Firmware<romepi_1.0.0.c
AMD EPYC 7502 firmware
AMD EPYC 7452 Firmware<romepi_1.0.0.c
AMD EPYC Server
Amd Epyc Server Firmware<romepi_1.0.0.c
AMD EPYC 7402 Firmware
AMD EPYC 7402P Firmware<romepi_1.0.0.c
AMD EPYC 7402P Firmware
AMD EPYC Firmware<romepi_1.0.0.c
AMD EPYC 7352 firmware
AMD EPYC 7302P Firmware<romepi_1.0.0.c
AMD EPYC 7302P Firmware
Amd Epyc Server Firmware<romepi_1.0.0.c
AMD EPYC 7302 Firmware
AMD EPYC 7282 Firmware<romepi_1.0.0.c
AMD EPYC 7282 Firmware
AMD EPYC 7272 firmware<romepi_1.0.0.c
AMD EPYC 7272 firmware
AMD EPYC 7262 Firmware<romepi_1.0.0.c
AMD EPYC 7262 Firmware
AMD EPYC 7252 Firmware<romepi_1.0.0.c
AMD EPYC 7252 Firmware
AMD EPYC 7232p firmware<romepi_1.0.0.c
AMD EPYC 7232p firmware
AMD EPYC 7002 Firmware<romepi_1.0.0.c
AMD EPYC Server
AMD EPYC 7003 Firmware<milanpi_1.0.0.4
AMD EPYC 7003 Firmware
AMD EPYC 72F3 Firmware<milanpi_1.0.0.4
AMD EPYC 72F3 Firmware
AMD EPYC Firmware<milanpi_1.0.0.4
AMD EPYC 7313 Firmware
AMD EPYC 7313P Firmware<milanpi_1.0.0.4
AMD EPYC 7313P Firmware
Amd Epyc Server Firmware<milanpi_1.0.0.4
AMD EPYC 7343 Firmware
AMD EPYC 7373X Firmware<milanpi_1.0.0.4
AMD EPYC 7373X Firmware
AMD EPYC 73F3 Firmware<milanpi_1.0.0.4
AMD EPYC 73F3 Firmware
AMD EPYC 7413 Firmware<milanpi_1.0.0.4
AMD EPYC 7413 Firmware
AMD EPYC 7443P Firmware<milanpi_1.0.0.4
AMD EPYC 7443P
AMD EPYC 7443P Firmware<milanpi_1.0.0.4
AMD EPYC 7443P Firmware
Amd Epyc Server Firmware<milanpi_1.0.0.4
AMD EPYC Server
AMD EPYC 74F3 Firmware<milanpi_1.0.0.4
AMD EPYC 74F3 Firmware
AMD EPYC 7513 Firmware<milanpi_1.0.0.4
AMD EPYC 7513 Firmware
Amd Epyc Server Firmware<milanpi_1.0.0.4
AMD EPYC 7543 Firmware
AMD EPYC 7543P Firmware<milanpi_1.0.0.4
AMD EPYC 7543P Firmware
AMD EPYC 7573X Firmware<milanpi_1.0.0.4
AMD EPYC 7573X Firmware
AMD EPYC 75F3 Firmware<milanpi_1.0.0.4
AMD EPYC 75F3 Firmware
AMD EPYC 7643P Firmware<milanpi_1.0.0.4
AMD EPYC 7643 Firmware
AMD EPYC 7663 Firmware<milanpi_1.0.0.4
AMD EPYC 7663 Firmware
AMD EPYC 7713P Firmware<milanpi_1.0.0.4
AMD EPYC 7713 Firmware
AMD EPYC 7713P Firmware<milanpi_1.0.0.4
AMD EPYC 7713P Firmware
AMD EPYC 7743 Firmware<milanpi_1.0.0.4
AMD EPYC 7743 Firmware
AMD EPYC 7763 Firmware<milanpi_1.0.0.4
AMD EPYC 7763 Firmware
AMD EPYC 7773X Firmware<milanpi_1.0.0.4
AMD EPYC 7773X Firmware
Amd Epyc Server Firmware<naplespi_1.0.0.h
AMD EPYC 7001 Firmware
AMD EPYC 7251 Firmware<naplespi_1.0.0.h
AMD EPYC 7251 Firmware
AMD EPYC 7261 Firmware<naplespi_1.0.0.h
AMD EPYC 7261
Amd Epyc Server Firmware<naplespi_1.0.0.h
AMD EPYC Server
Amd Epyc Server Firmware<naplespi_1.0.0.h
AMD EPYC 7301 Firmware
AMD EPYC 7351P Firmware<naplespi_1.0.0.h
AMD EPYC 7351 Firmware
AMD EPYC 7371 Firmware<naplespi_1.0.0.h
AMD EPYC 7371 Firmware
AMD EPYC 7401P Firmware<naplespi_1.0.0.h
AMD EPYC 7401 Firmware
AMD EPYC 7401P Firmware<naplespi_1.0.0.h
AMD EPYC 7401P Firmware
AMD EPYC 7451 Firmware<naplespi_1.0.0.h
AMD EPYC 7451 Firmware
AMD EPYC 7501 Firmware<naplespi_1.0.0.h
AMD EPYC Server
AMD EPYC 7551P Firmware<naplespi_1.0.0.h
AMD EPYC 7551 Firmware
AMD EPYC 7551P Firmware<naplespi_1.0.0.h
AMD EPYC 7551P Firmware
AMD EPYC 7601 Firmware<naplespi_1.0.0.h
AMD EPYC 7601 Firmware

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2021-26398?

    The severity of CVE-2021-26398 is considered high due to potential arbitrary code execution leading to security breaches.

  • How do I fix CVE-2021-26398?

    To fix CVE-2021-26398, update the affected Amd Epyc firmware to a version later than romepi_1.0.0.c or milanpi_1.0.0.4.

  • What systems are affected by CVE-2021-26398?

    CVE-2021-26398 affects specific versions of the Amd Epyc 7h12, 7f72, 7f52, and various other Amd Epyc firmware versions.

  • What could an attacker achieve with CVE-2021-26398?

    An attacker exploiting CVE-2021-26398 could corrupt ASP OS memory, potentially leading to arbitrary code execution.

  • How can I determine if my system is vulnerable to CVE-2021-26398?

    Check the firmware version of your Amd Epyc processors against the vulnerable versions listed in the CVE-2021-26398 advisory.

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