Speculative interference attacks
WebSpeculative interference attacks The speculative interfer-ence attack [7] is a variation of speculative execution attacks that can bypass all the invisible speculation schemes … WebSpeculative Interference Attack for Speculation Invariant Instructions Pavlos Aimoniotis , Christos Sakalis, Magnus Sj€alander , and Stefanos Kaxiras Abstract—Speculative side-channel attacks access sensitive data and use transmitters to leak the data during wrong-path execution. Various defenses have been proposed to prevent such ...
Speculative interference attacks
Did you know?
WebInterference in Execution Units Interference Target z = long computation (takes Z cycles) A = f(z) X = load(A) Interference Gadget x = load(&S[secret*64]) f’(x) f(k) and f’(k) are a set … Web• Speculative Interference Attacks undermine the security of a prominent family of Hardware Spectre Defenses • 1. Mis-speculated younger instructions can affect the …
WebSpeculative Interference Attacks: Breaking Invisible Speculation Schemes ASPLOS ’21, April 19–23, 2024, Virtual, USA (Figure1(b)), the non-speculative and speculative dependent in-structions use execution units EXE1 and EXE2, respectively, and contend for the common data bus (CDB) in the same cycle. We call this speculative interference. WebSpeculative interference converts timing changes to persistent cache-state changes, and timing is typically ignored by many cache-based defenses. We develop a framework to …
WebIn this paper, we introduce speculative interference attacks, which show that prior invisible speculation mechanisms do not fully block speculation-based attacks that use cache state. We make two key observations. First, mis-speculatedyounger instructions can change the timing of older, bound-to-retire instructions, including memory operations. http://csg.csail.mit.edu/6.S983/student_slides/2B.pdf
WebJun 23, 2024 · Speculative interference attack shows vulnerability of previously proposed invisible speculation schemes, because secrets accessed by misspeculated younger instructions can change the order of bound-to-retire loads, making secret-dependent changes to the cache. New defenses should therefore consider this attack variation.
Webtive Interference Attacks: Breaking Invisible Speculation Schemes. In Pro- ... Speculative execution attacks such as Spectre [31] and follow-on work [8, 12, 24, 30, 32, 36, 44, 56] have opened a new chapter in processor security. In these attacks, adversary-controlled transient instructionsÐi.e., speculative instructions bound to squashÐaccess david hume scotlandWebP. Aimoniotis, C. Sakalis, M. Själander, and S. Kaxiras, "Reorder Buffer Contention: A Forward Speculative Interference Attack for Speculation Invariant Instructions", IEEE Computer Architecture ... Leveraging Inclusive Caches to Attack Speculative Delay Schemes", IEEE International Symposium on Secure and Private Execution Environment Design ... gas prices in jordan valley oregonWebJul 23, 2024 · In this paper, we introduce speculative interference attacks, which show that prior invisible speculation mechanisms do not fully block these speculation-based attacks. We make two key observations. First, misspeculated younger instructions can change the timing of older, bound-to-retire instructions, including memory operations. david hume the problem of induction summaryWebMay 23, 2024 · Transient execution attacks use microarchitectural covert channels to leak secrets that should not have been accessible during logical program execution. Commonly used micro-architectural covert channels are those that leave lasting footprints in the micro-architectural state, for example, a cache state change, from which the secret is recovered … david hume truthWebWhat is a speculative attack? A speculative attack occurs in the foreign exchange markets when speculators attack the currency of a country attempting to maintain a fixed, or … gas prices in jordanWebarXiv.org e-Print archive david hume the history of england pdfWebApr 6, 2024 · Abstract: Speculative execution attacks exploiting speculative execution to leak secrets have aroused significant concerns in both industry and academia. They mainly exploit covert or side channels over microarchitectural states left by mis-speculated and squashed instructions (i.e., transient instructions). Most such attacks target cache states. gas prices in julesburg co