Tampering with SPI ROM Structure Headers Could Lead to Memory Corruption or Denial of Service

CVE-2021-46772

Summary

An input validation flaw within AMD BIOS and UEFI firmware enables a privileged attacker with access to the BIOS menu or UEFI shell to manipulate structure headers in SPI ROM. This manipulation may lead to out-of-bounds memory read and write operations, resulting in potential memory corruption or denial of service. The vulnerability emphasizes the importance of securing access to BIOS settings and implementing stringent input validation measures to mitigate risk.

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