medium
5.5
Advisory Published
Updated

CVE-2021-26349

First published: Tue May 10 2022(Updated: )

Failure to assign a new report ID to an imported guest may potentially result in an SEV-SNP guest VM being tricked into trusting a dishonest Migration Agent (MA).

Credit: psirt@amd.com

Affected SoftwareAffected VersionHow to fix
Amd Epyc 7763 Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7763
Amd Epyc 7713p Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7713p
Amd Epyc 7713 Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7713
Amd Epyc 7663 Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7663
Amd Epyc 7643 Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7643
Amd Epyc 75f3 Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 75f3
Amd Epyc 7543p Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7543p
Amd Epyc 7543 Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7543
Amd Epyc 7513 Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7513
Amd Epyc 7453 Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7453
Amd Epyc 74f3 Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 74f3
Amd Epyc 7443p Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7443p
Amd Epyc 7443 Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7443
Amd Epyc 7413 Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7413
Amd Epyc 73f3 Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 73f3
Amd Epyc 7343 Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7343
Amd Epyc 7313p Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7313p
Amd Epyc 7313 Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7313
Amd Epyc 72f3 Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 72f3
Amd Epyc 7773x Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7773x
Amd Epyc 7473x Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7473x
Amd Epyc 7573x Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7573x
Amd Epyc 7373x Firmware<milanpi-sp3_1.0.0.7
Amd Epyc 7373x

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Reference Links

Frequently Asked Questions

  • What is CVE-2021-26349?

    CVE-2021-26349 is a vulnerability that occurs when a new report ID is not assigned to an imported guest, potentially allowing a dishonest Migration Agent (MA) to trick an SEV-SNP guest VM into trusting them.

  • How does CVE-2021-26349 affect Amd Epyc 7763 Firmware?

    Amd Epyc 7763 Firmware with version milanpi-sp3_1.0.0.7 is affected by CVE-2021-26349.

  • How does CVE-2021-26349 affect Amd Epyc 7713p Firmware?

    Amd Epyc 7713p Firmware with version milanpi-sp3_1.0.0.7 is affected by CVE-2021-26349.

  • What is the severity of CVE-2021-26349?

    CVE-2021-26349 has a severity rating of 5.5 (medium).

  • Where can I find more information about CVE-2021-26349?

    More information about CVE-2021-26349 can be found on the AMD Product Security Bulletin page at https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028.

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