~/talks

Herbert Bos

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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…
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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…
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Exploiting Hardware Glitches And Side Channels In Perfect SoftwareOWASP Global AppSec Amsterdam 20192019-09-23
Demonstrates concrete, bug‑free attacks: uses Rowhammer bit flips from JavaScript to change pointers and gain code execution in modern browsers (Edge/Chakra)…
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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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An In-Depth Analysis of Disassembly on Full-Scale x86/x64 BinariesUSENIX Security '162016-08-10
Measurement of nine disassemblers on 981 binaries uses DWARF/PDB plus an LLVM pass to create ground truth and finds IDA recovers 96–99% of instructions, linear…
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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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On Sockets and System Calls: Minimizing Context Switches for the Socket APITRIOS ’142014-10-05
Implements exposed socket buffers (shared per-socket memory with two lockless queues) and pins the user-space network stack to its own core in NewtOS…
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