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Cristiano Giuffrida

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titleconferencedate
Don't Look UB: Exposing Sanitizer-Eliding Compiler OptimizationsPLDI 20232023-06-17
Differential-testing framework LookUB compiles programs with sanitizers on with and without optimization to expose optimizer transformations that remove…
Talk on
Unwinding the Stack for Fun and ProfitBlack Hat Europe 20222022-12-05
Claims that exception unwinding can be hijacked to restore return-based exploits using a technique called Chop (Handler Oriented Programming), which corrupts…
Talk on
DUPEFS: Leaking Data Over the Network With Filesystem Deduplication Side ChannelsFAST '222022-02-22
Shows a practical remote channel against ZFS inline deduplication that leaks OAuth access tokens from an nginx access log by exploiting timing differences…
Talk on
Flip Feng Shui: Hammering a Needle in the Software StackUSENIX Security '162016-08-10
A new exploitation vector uses Rowhammer plus kernel same-page merging (KSM) to induce single-bit flips at arbitrary physical addresses by forcing the victim…
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Undermining Information Hiding (and What to Do about It)USENIX Security '162016-08-10
Demonstrates that thread spraying forces many per-thread safe regions and reduces SafeStack entropy so an attacker locates a SafeStack found in 3 seconds…
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Poking Holes in Information HidingUSENIX Security '162016-08-10
Shows an allocation oracle attack that infers the sizes of unmapped address-space holes by repeatedly triggering large allocations and observing success or…
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Over the Edge: Silently Owning Windows 10's Secure BrowserBlack Hat USA 20162016-08-03
Windows 10’s default-on memory deduplication yields a measurable write slowdown that is turned into a one-bit local side channel to recover 64-bit ASLR…
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