7.8
CWE
120
Advisory Published
Updated

CVE-2021-26409

First published: Tue Jan 10 2023(Updated: )

Insufficient bounds checking in SEV-ES may allow an attacker to corrupt Reverse Map table (RMP) memory, potentially resulting in a loss of SNP (Secure Nested Paging) memory integrity.

Credit: psirt@amd.com

Affected SoftwareAffected VersionHow to fix
Amd Milanpi Firmware<1.0.0.3
Amd Milanpi

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Frequently Asked Questions

  • What is the vulnerability ID for this issue?

    The vulnerability ID for this issue is CVE-2021-26409.

  • What is the title of this vulnerability?

    The title of this vulnerability is 'Insufficient bounds checking in SEV-ES may allow an attacker to corrupt Reverse Map table (RMP) memory.'

  • What is the impact of this vulnerability?

    This vulnerability may result in a loss of SNP (Secure Nested Paging) memory integrity.

  • How does this vulnerability occur?

    This vulnerability occurs due to insufficient bounds checking in SEV-ES.

  • What is the severity rating of this vulnerability?

    The severity rating of this vulnerability is high (7.8).

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