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New Predictor-Based Attacks in Processors
Time
Location
Event Type
Research Manuscript
Virtual Programs
Hosted in Virtual Platform
Keywords
Hardware Security: Attack and Defense
Topics
Security
DescriptionThe micro-architectural state held by predictors in modern processors can leak sensitive information. This is the first work to analyze the security of a special type of predictor, the value predictor, and demonstrate new security attacks. The new attacks bypass all the existing predictor defenses which have not yet considered value predictors as sources of vulnerabilities. This work further shows there are many attack variants, as derived using our new attack model. This paper highlights the importance of security analysis of processor features before they are realized in silicon, so the security is understood at the design time.