7. SMRAM Overwrite in Fault Tolerant Write SMI Handler
The function
SmmFaultTolerantWriteHandler did not correctly validate inputs. This could result in an overwrite of SMRAM.This issue is addressed by EDK2 SVN https://sourceforge.net/p/edk2/code/13518 and https://sourceforge.net/p/edk2/code/13763.
Reported by the Advanced Threat Research team at Intel Security.
Last modified 2yr ago