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- W2036620903 abstract "Processor implementation errata remain a problem, and worse, a subset of these bugs are security-critical. We classified 7 years of errata from recent commercial processors to understand the magnitude and severity of this problem, and found that of 301 errata analyzed, 28 are security-critical. We propose the SECURITY-CRITICAL PROCESSOR ER- RATA CATCHING SYSTEM (SPECS) as a low-overhead solution to this problem. SPECS employs a dynamic verification strategy that is made lightweight by limiting protection to only security-critical processor state. As a proof-of- concept, we implement a hardware prototype of SPECS in an open source processor. Using this prototype, we evaluate SPECS against a set of 14 bugs inspired by the types of security-critical errata we discovered in the classification phase. The evaluation shows that SPECS is 86% effective as a defense when deployed using only ISA-level state; incurs less than 5% area and power overhead; and has no software run-time overhead." @default.
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- W2036620903 date "2015-03-14" @default.
- W2036620903 modified "2023-10-17" @default.
- W2036620903 title "SPECS" @default.
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- W2036620903 doi "https://doi.org/10.1145/2694344.2694366" @default.
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