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A comment on Apple EFI Firmware Security Vulnerabilities.

Re:Apple EFI Firmware Security Vulnerabilities by betafive on Sunday December 21, 2014 @12:55PM (#8780343)
Has anyone looked at using VTd to secure Thunderbolt devices from the system bus?
[ Parent | on HN ]
Re:Apple EFI Firmware Security Vulnerabilities by amluto on Sunday December 21, 2014 @02:10PM (#8780562)
That wouldn't help. This attack happens long before the OS loads, and EFI explicitly executes code from the option ROM, so DMA isn't even involved.
[ Parent | on HN ]