What is the role of speculative execution in side-channel attacks like Spectre and Meltdown, and how can these vulnerabilities be mitigated?
What is the role of speculative execution in side-channel attacks like Spectre and Meltdown, and how can these vulnerabilities be mitigated?
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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What is the role of speculative execution in side-channel attacks like Spectre and Meltdown, and how can these vulnerabilities be mitigated?
Expert Solution
Step 1: Conceptual Foundation:
Execution is a technique used by computer processors to perfect performance by predicting and executing instructions that may be needed in the future.
It allows processors to continue executing instructions when there is a branch that could potentially change the program flow.
The goal of execution is to enhance CPU throughput and overall system performance.
Specter and Meltdown are vulnerabilities that exploit the implementation of execution in processors.
These vulnerabilities enable access to data by taking advantage of side channel information leaks.
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