Potential vulnerability in MSR could lead to arbitrary code execution

Summary

CVE-2023-31315 is a potential vulnerability in AMD's model specific register (MSR) that could allow a malicious program with ring0 access to modify SMM configuration while SMI lock is enabled, potentially leading to arbitrary code execution. The vulnerability affects the majority of AMD processors and has been patched by AMD in the Ryzen 3000 Series desktop processors. It has not been exploited by ransomware groups. Additionally, there are warnings about multiple cloud service provider attacks related to the Black Hat USA conference, and a potential vulnerability in Office that could lead to sensitive data leakage.

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