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CacheWarp: Software-based Fault Injection using Selective State Reset
AMD SEV is a trusted-execution environment (TEE), providing confidentiality and integrity for virtual machines (VMs). With AMD SEV, it …
Ruiyi Zhang, Lukas Gerlach, Daniel Weber, Lorenz Hetterich, Youheng Lü, Andreas Kogler, Michael Schwarz
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Efficient and Generic Microarchitectural Hash-Function Recovery
Modern CPUs use a variety of undocumented microarchitectural hash functions to efficiently distribute data within microarchitectural …
Lukas Gerlach, Simon Schwarz, Nicolas Faroß, Michael Schwarz
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A Rowhammer Reproduction Study Using the Blacksmith Fuzzer
Rowhammer is a hardware vulnerability that can be exploited to induce bit flips in dynamic random access memory (DRAM), compromising …
Lukas Gerlach, Fabian Thomas, Robert Pietsch, Michael Schwarz
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Indirect Meltdown: Building Novel Side-Channel Attacks from Transient-Execution Attacks
The transient-execution attack Meltdown leaks sensitive information by transiently accessing inaccessible data during out-of-order …
Daniel Weber, Fabian Thomas, Lukas Gerlach, Ruiyi Zhang, Michael Schwarz
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Reviving Meltdown 3a
Since the initial discovery of Meltdown and Spectre in 2017, different variants of these attacks have been discovered. One often …
Daniel Weber, Fabian Thomas, Lukas Gerlach, Ruiyi Zhang, Michael Schwarz
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Collide+Power: Leaking Inaccessible Data with Software-based Power Side Channels
Differential Power Analysis (DPA) measures single-bit differences between data values used in computer systems by statistical analysis …
Andreas Kogler, Jonas Juffinger, Lukas Giner, Lukas Gerlach, Martin Schwarzl, Michael Schwarz, Daniel Gruss, Stefan Mangard
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Hammulator: Simulate Now-Exploit Later
Rowhammer, first considered a reliability issue, turned out to be a significant threat to the security of systems. Hence, several …
Fabian Thomas, Lukas Gerlach, Michael Schwarz
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A Security RISC: Microarchitectural Attacks on Hardware RISC-V CPUs
Microarchitectural attacks threaten the security of computer systems even in the absence of software vulnerabilities. Such attacks are …
Lukas Gerlach, Daniel Weber, Ruiyi Zhang, Michael Schwarz
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