CVE-2021-46762: Input Validation

Published May 9, 2023
·
Updated

Insufficient input validation in the SMU may allow an attacker to corrupt SMU SRAM potentially leading to a loss of integrity or denial of service.

Affected Software

192 affected components
All of the following
AMD Epyc 72f3 Firmware=milanpi_1.0.0.9
AMD Epyc 72f3
All of the following
AMD Epyc 7313 Firmware=milanpi_1.0.0.9
AMD Epyc 7313
All of the following
AMD Epyc 7313p Firmware=milanpi_1.0.0.9
AMD Epyc 7313p
All of the following
AMD Epyc 7343 Firmware=milanpi_1.0.0.9
AMD Epyc 7343
All of the following
AMD Epyc 7373x Firmware=milanpi_1.0.0.9
AMD Epyc 7373x
All of the following
AMD Epyc 73f3 Firmware=milanpi_1.0.0.9
AMD Epyc 73f3
All of the following
AMD Epyc 7413 Firmware=milanpi_1.0.0.9
AMD Epyc 7413
All of the following
AMD Epyc 7443 Firmware=milanpi_1.0.0.9
AMD Epyc 7443
All of the following
AMD Epyc 7443p Firmware=milanpi_1.0.0.9
AMD Epyc 7443p
All of the following
AMD Epyc 7453 Firmware=milanpi_1.0.0.9
AMD Epyc 7453
All of the following
AMD Epyc 7473x Firmware=milanpi_1.0.0.9
AMD Epyc 7473x
All of the following
AMD Epyc 74f3 Firmware=milanpi_1.0.0.9
AMD Epyc 74f3
All of the following
AMD Epyc 7513 Firmware=milanpi_1.0.0.9
AMD Epyc 7513
All of the following
AMD Epyc 7543
AMD Epyc 7543 Firmware=milanpi_1.0.0.9
All of the following
AMD Epyc 7543p
AMD Epyc 7543p Firmware=milanpi_1.0.0.9
All of the following
AMD Epyc 7573x
AMD Epyc 7573x Firmware=milanpi_1.0.0.9
All of the following
AMD Epyc 75f3
AMD Epyc 75f3 Firmware=milanpi_1.0.0.9
All of the following
AMD Epyc 7643
AMD Epyc 7643 Firmware=milanpi_1.0.0.9
All of the following
AMD Epyc 7663
AMD Epyc 7663 Firmware=milanpi_1.0.0.9
All of the following
AMD Epyc 7713
AMD Epyc 7713 Firmware=milanpi_1.0.0.9
All of the following
AMD Epyc 7713p
AMD Epyc 7713p Firmware=milanpi_1.0.0.9
All of the following
AMD Epyc 7763
AMD Epyc 7763 Firmware=milanpi_1.0.0.9
All of the following
AMD Epyc 7773x
AMD Epyc 7773x Firmware=milanpi_1.0.0.9
All of the following
AMD Epyc 7232p Firmware=romepi_1.0.0.e
AMD Epyc 7232p
All of the following
AMD Epyc 7252 Firmware=romepi_1.0.0.e
AMD Epyc 7252
All of the following
AMD Epyc 7262 Firmware=romepi_1.0.0.e
AMD Epyc 7262
All of the following
AMD Epyc 7272 Firmware=romepi_1.0.0.e
AMD Epyc 7272
All of the following
AMD Epyc 7282 Firmware=romepi_1.0.0.e
AMD Epyc 7282
All of the following
AMD Epyc 7302 Firmware=romepi_1.0.0.e
AMD Epyc 7302
All of the following
AMD Epyc 7302p Firmware=romepi_1.0.0.e
AMD Epyc 7302p
All of the following
AMD Epyc 7352 Firmware=romepi_1.0.0.e
AMD Epyc 7352
All of the following
AMD Epyc 7402 Firmware=romepi_1.0.0.e
AMD Epyc 7402
All of the following
AMD Epyc 7402p Firmware=romepi_1.0.0.e
AMD Epyc 7402p
All of the following
AMD Epyc 7452 Firmware=romepi_1.0.0.e
AMD Epyc 7452
All of the following
AMD Epyc 7502 Firmware=romepi_1.0.0.e
AMD Epyc 7502
All of the following
AMD Epyc 7502p Firmware=romepi_1.0.0.e
AMD Epyc 7502p
All of the following
AMD Epyc 7532 Firmware=romepi_1.0.0.e
AMD Epyc 7532
All of the following
AMD Epyc 7542 Firmware=romepi_1.0.0.e
AMD Epyc 7542
All of the following
AMD Epyc 7552 Firmware=romepi_1.0.0.e
AMD Epyc 7552
All of the following
AMD Epyc 7642 Firmware=romepi_1.0.0.e
AMD Epyc 7642
All of the following
AMD Epyc 7662 Firmware=romepi_1.0.0.e
AMD Epyc 7662
All of the following
AMD Epyc 7702 Firmware=romepi_1.0.0.e
AMD Epyc 7702
All of the following
AMD Epyc 7702p Firmware=romepi_1.0.0.e
AMD Epyc 7702p
All of the following
AMD Epyc 7742 Firmware=romepi_1.0.0.e
AMD Epyc 7742
All of the following
AMD Epyc 7f32 Firmware=romepi_1.0.0.e
AMD Epyc 7f32
All of the following
AMD Epyc 7f52 Firmware=romepi_1.0.0.e
AMD Epyc 7f52
All of the following
AMD Epyc 7f72 Firmware=romepi_1.0.0.e
AMD Epyc 7f72
All of the following
AMD Epyc 7h12 Firmware=romepi_1.0.0.e
AMD Epyc 7h12
AMD Epyc 72f3 Firmware=milanpi_1.0.0.9
AMD Epyc 72f3
AMD Epyc 7313 Firmware=milanpi_1.0.0.9
AMD Epyc 7313
AMD Epyc 7313p Firmware=milanpi_1.0.0.9
AMD Epyc 7313p
AMD Epyc 7343 Firmware=milanpi_1.0.0.9
AMD Epyc 7343
AMD Epyc 7373x Firmware=milanpi_1.0.0.9
AMD Epyc 7373x
AMD Epyc 73f3 Firmware=milanpi_1.0.0.9
AMD Epyc 73f3
AMD Epyc 7413 Firmware=milanpi_1.0.0.9
AMD Epyc 7413
AMD Epyc 7443 Firmware=milanpi_1.0.0.9
AMD Epyc 7443
AMD Epyc 7443p Firmware=milanpi_1.0.0.9
AMD Epyc 7443p
AMD Epyc 7453 Firmware=milanpi_1.0.0.9
AMD Epyc 7453
AMD Epyc 7473x Firmware=milanpi_1.0.0.9
AMD Epyc 7473x
AMD Epyc 74f3 Firmware=milanpi_1.0.0.9
AMD Epyc 74f3
AMD Epyc 7513 Firmware=milanpi_1.0.0.9
AMD Epyc 7513
AMD Epyc 7543 Firmware=milanpi_1.0.0.9
AMD Epyc 7543
AMD Epyc 7543p Firmware=milanpi_1.0.0.9
AMD Epyc 7543p
AMD Epyc 7573x Firmware=milanpi_1.0.0.9
AMD Epyc 7573x
AMD Epyc 75f3 Firmware=milanpi_1.0.0.9
AMD Epyc 75f3
AMD Epyc 7643 Firmware=milanpi_1.0.0.9
AMD Epyc 7643
AMD Epyc 7663 Firmware=milanpi_1.0.0.9
AMD Epyc 7663
AMD Epyc 7713 Firmware=milanpi_1.0.0.9
AMD Epyc 7713
AMD Epyc 7713p Firmware=milanpi_1.0.0.9
AMD Epyc 7713p
AMD Epyc 7763 Firmware=milanpi_1.0.0.9
AMD Epyc 7763
AMD Epyc 7773x Firmware=milanpi_1.0.0.9
AMD Epyc 7773x
AMD Epyc 7232p Firmware=romepi_1.0.0.e
AMD Epyc 7232p
AMD Epyc 7252 Firmware=romepi_1.0.0.e
AMD Epyc 7252
AMD Epyc 7262 Firmware=romepi_1.0.0.e
AMD Epyc 7262
AMD Epyc 7272 Firmware=romepi_1.0.0.e
AMD Epyc 7272
AMD Epyc 7282 Firmware=romepi_1.0.0.e
AMD Epyc 7282
AMD Epyc 7302 Firmware=romepi_1.0.0.e
AMD Epyc 7302
AMD Epyc 7302p Firmware=romepi_1.0.0.e
AMD Epyc 7302p
AMD Epyc 7352 Firmware=romepi_1.0.0.e
AMD Epyc 7352
AMD Epyc 7402 Firmware=romepi_1.0.0.e
AMD Epyc 7402
AMD Epyc 7402p Firmware=romepi_1.0.0.e
AMD Epyc 7402p
AMD Epyc 7452 Firmware=romepi_1.0.0.e
AMD Epyc 7452
AMD Epyc 7502 Firmware=romepi_1.0.0.e
AMD Epyc 7502
AMD Epyc 7502p Firmware=romepi_1.0.0.e
AMD Epyc 7502p
AMD Epyc 7532 Firmware=romepi_1.0.0.e
AMD Epyc 7532
AMD Epyc 7542 Firmware=romepi_1.0.0.e
AMD Epyc 7542
AMD Epyc 7552 Firmware=romepi_1.0.0.e
AMD Epyc 7552
AMD Epyc 7642 Firmware=romepi_1.0.0.e
AMD Epyc 7642
AMD Epyc 7662 Firmware=romepi_1.0.0.e
AMD Epyc 7662
AMD Epyc 7702 Firmware=romepi_1.0.0.e
AMD Epyc 7702
AMD Epyc 7702p Firmware=romepi_1.0.0.e
AMD Epyc 7702p
AMD Epyc 7742 Firmware=romepi_1.0.0.e
AMD Epyc 7742
AMD Epyc 7f32 Firmware=romepi_1.0.0.e
AMD Epyc 7f32
AMD Epyc 7f52 Firmware=romepi_1.0.0.e
AMD Epyc 7f52
AMD Epyc 7f72 Firmware=romepi_1.0.0.e
AMD Epyc 7f72
AMD Epyc 7h12 Firmware=romepi_1.0.0.e
AMD Epyc 7h12

Event History

May 9, 2023
CVE Published
via MITRE·06:36 PM
Data Sourced
via MITRE·06:36 PM
DescriptionSeverity
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Frequently Asked Questions

1

What is the severity of CVE-2021-46762?

CVE-2021-46762 has been classified as a medium severity vulnerability due to insufficient input validation in the SMU.

2

How do I fix CVE-2021-46762?

To mitigate CVE-2021-46762, users should ensure they update to the firmware version milanpi_1.0.0.9 or later.

3

What systems are affected by CVE-2021-46762?

CVE-2021-46762 affects various AMD EPYC processors using the milanpi_1.0.0.9 firmware version.

4

What potential impact does CVE-2021-46762 have?

The impact of CVE-2021-46762 includes possible corruption of SMU SRAM leading to loss of integrity or denial of service.

5

Is CVE-2021-46762 exploitable remotely?

CVE-2021-46762 can potentially be exploited by an attacker with local access to the system, rather than remotely.

Company

Resources

Contact

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