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CVE-2021-26320

Insufficient validation of the AMD SEV Signing Key (ASK) in the SEND_START command in the SEV Firmware may allow a local authenticated attac

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in NaplesPI-SP3_1.0.0.G, RomePI-SP3_1.0.0.C, MilanPI-SP3_1.0.0.4
None on Exploit-DB, Metasploit or GitHub

Summary

Insufficient validation of the AMD SEV Signing Key (ASK) in the SEND_START command in the SEV Firmware may allow a local authenticated attacker to perform a denial of service of the PSP

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • AMD 1st Gen AMD EPYC™

    fixed in NaplesPI-SP3_1.0.0.G

  • AMD 2nd Gen AMD EPYC™

    fixed in RomePI-SP3_1.0.0.C

  • AMD 3rd Gen AMD EPYC™

    fixed in MilanPI-SP3_1.0.0.4

References 1

amd.com