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A Systematic Study on Spectre Attacks and Defenses
Abstract
"Spectre attacks is an important category of side channel methods, which allows attacker to obtain sensitive data by observing the system. Spectre attacks exploit modern processors' features designed for the performance: out-of-order execution and speculative execution. Also, in Spectre attacks, cache side-channel attack methods play an important role.
The high-level goal of Spectre attacks is to load target data into the cache through the speculative execution. Once it has been done, the next step is leaking information. To the end, the cache side-channel methods are employed to leak information, because there is no direct way to read data from the cache. In this paper, we discuss variations of Spectre attacks and discuss defense mechanisms for each of them.
Keywords
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spectre attacks, cache and side-channel, stack-based information leaks
Research Briefs on Information & Communication Technology Evolution (ReBICTE)
DOI: 10.22667/ReBiCTE.2021.11.30.017 |