AMD Secure Processor Improper Syscall Input Validation Vulnerability Allowing Kernel Memory Inference

A vulnerability exists in the AMD Secure Processor (ASP) due to improper validation of syscall input. This flaw may cause the kernel to read syscall parameters from its own memory space, potentially allowing an attacker to infer kernel memory contents, which could lead to unauthorized information disclosure.

Impact

Exploitation of this vulnerability could result in unauthorized access to kernel memory, allowing an attacker to infer sensitive information from that memory.

Remediation

Users are advised to update to the Platform Initialization (PI) version 1.0.0.E. This update is available through the AMD Key Distribution Server (KDS).