CVE-2021-26409

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032	Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:amd:milanpi_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:amd:milanpi:-:*:*:*:*:*:*:*

History

21 Nov 2024, 05:56

Type	Values Removed	Values Added
Summary		(es) La comprobación de los límites insuficiente en SEV-ES puede permitir que un atacante corrompa la memoria de la tabla de mapa inverso (RMP), lo que podría provocar una pérdida de integridad de la memoria SNP (paginación anidada segura).
References	~~() https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032 - Vendor Advisory~~	() https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032 - Vendor Advisory

Information

Published : 2023-01-11 08:15

Updated : 2025-04-09 15:15

NVD link : CVE-2021-26409

Mitre link : CVE-2021-26409

CVE.ORG link : CVE-2021-26409

JSON object : View

Products Affected

amd

milanpi
milanpi_firmware

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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