A vulnerability exists in SMM (System Management Mode)...
High severity
Unreviewed
Published
Feb 10, 2022
to the GitHub Advisory Database
•
Updated Feb 3, 2023
Description
Published by the National Vulnerability Database
Feb 3, 2022
Published to the GitHub Advisory Database
Feb 10, 2022
Last updated
Feb 3, 2023
A vulnerability exists in SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated table variables EFI_BOOT_SERVICES and EFI_RUNTIME_SERVICES. This can be used by an attacker to overwrite address location of the function (LocateHandleBuffer) to the address location of arbitrary code controlled by the attacker. On system call to SWSMI handler, the arbitrary code can be triggered to execute.
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