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A Little Less Speculation, a Little More Action - A Deep Dive into Fuchsia's Mitigations for Specific CPU Side-Channel Attacks

Black Hat via YouTube

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Overview

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This talk examines how the Fuchsia team identified CPU side-channel attacks, adapted mitigations used in other operating systems for x86 and ARM, and tested those defenses in Fuchsia.

Syllabus

Introduction
Meltdown
Indirect Branch Predictor
Retpill
Indirect Branch Prediction Barrier
Indirect Branch Restricted Speculation
Enhanced IBRs
L1 Terminal Fault
L1 Terminal Fault Mitigation
MDS Mitigation
Spectre Variant 1
Bounce Check

Taught by

Black Hat

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