Bypassing Protections and Leaking/Corrupting SMM Memory: Vulnerabilities in AmdPspP2CmboxV2

CVE-2023-52711

What is CVE-2023-52711?

The issue centers around exposed System Management Interrupt (SMI) handlers in the AmdPspP2CmboxV2, which can allow adversaries to bypass existing protections established during previous UEFI phases. Additionally, the vulnerability enables the potential leaking and corruption of SMM memory. This situation raises concerns over the integrity and security of the system, as it could lead to unauthorized code execution within the System Management Mode, thereby compromising the overall security framework.

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