CVE-2023-20521

Summary

CVE-2023-20521 is a vulnerability affecting the TOCTOU (Time of Check to Time of Use) in the ASP (Advanced Software Protection) Bootloader. An attacker with physical access to the system can manipulate SPI ROM records after memory content verification, resulting in potential loss of confidentiality or denial of service. This issue allows an adversary to bypass the security measures put in place by the ASP Bootloader, posing a significant risk to system integrity. The vulnerability could potentially enable unauthorized access or modification of critical system files, causing disruption or exposure of sensitive data.

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