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Security Advisory - AMD Secure Encryption Virtualization (SEV) Information Disclosure Vulnerability

  • SA No INSPUR-SA-202110-001
  • Initial Release Date 2021-10-13 15:30:27
  • last Release Date 2021-10-13 15:37:27
  • Source AMD Security Bulletins
  • Potential Security Impact Information Disclosure
Vulnerability Summary

AMD EPYC Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State (SEV-ES) and Secure Encrypted Virtualization with Secure Nested Paging (SEV-SNP). A local authenticated attacker could potentially exploit this vulnerability leading to leaking guest data by the malicious hypervisor.
The affected products and corresponding update versions are shown in the table below.

Vulnerability Scoring Details
CVE V3.1 Vector(Base) Base Score V3.1 Vector(Temporal Score) Temporal Score
CVE-2020-12966 AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H 5.6 E:P/RL:O/RC:C 5.1

Fixed Product Version
Product BIOS Update version
NF5468A5 NF5468A5_BIOS_4.02.04_Standard_20210827
NF5488A5 NF5488A5_BIOS_4.02.06_Standard_20210827


Inspur provides method to update CPU Microcode of its various products as mentioned in the table above.Download your product’s corresponding BIOS image and perform the BIOS upgrade.
Please visit the Support Center site for updates on the applicable products.

Revision History

2021-10-13 V1.0 INITIAL


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