high
7.8
CWE
20
Advisory Published
Updated

CVE-2021-26323: Input Validation

First published: Tue Nov 16 2021(Updated: )

Failure to validate SEV Commands while SNP is active may result in a potential impact to memory integrity.

Credit: psirt@amd.com

Affected SoftwareAffected VersionHow to fix
Amd Epyc 7232p Firmware<romepi-sp3_1.0.0.c
Amd Epyc 7232p
Amd Epyc 7763 Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 7763
Amd Epyc 7713p Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 7713p
Amd Epyc 7713 Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 7713
Amd Epyc 7663 Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 7663
Amd Epyc 7643 Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 7643
Amd Epyc 75f3 Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 75f3
Amd Epyc 7543p Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 7543p
Amd Epyc 7543 Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 7543
Amd Epyc 7513 Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 7513
Amd Epyc 7453 Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 7453
Amd Epyc 74f3 Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 74f3
Amd Epyc 7443p Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 7443p
Amd Epyc 7443 Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 7443
Amd Epyc 7413 Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 7413
Amd Epyc 73f3 Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 73f3
Amd Epyc 7343 Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 7343
Amd Epyc 7313p Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 7313p
Amd Epyc 7313 Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 7313
Amd Epyc 72f3 Firmware<milanpi-sp3_1.0.0.4
Amd Epyc 72f3

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Reference Links

Frequently Asked Questions

  • What is CVE-2021-26323?

    CVE-2021-26323 is a vulnerability that results in a potential impact to memory integrity due to failure to validate SEV commands while SNP is active.

  • What is the severity of CVE-2021-26323?

    CVE-2021-26323 has a severity rating of 7.8 (high).

  • Which software is affected by CVE-2021-26323?

    The affected software include AMD Epyc 7232p firmware (version romepi-sp3_1.0.0.c) and AMD Epyc 7763 firmware (version milanpi-sp3_1.0.0.4).

  • How can I fix CVE-2021-26323?

    To fix CVE-2021-26323, it is recommended to apply the firmware updates provided by AMD. Please refer to the reference link for more information.

  • Where can I find more information about CVE-2021-26323?

    You can find more information about CVE-2021-26323 on the official AMD Product Security Bulletin at the provided reference link.

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