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Mathias Payer

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Exploiting Android Apps with Counterfeit Art20th USENIX WOOT Conference on Offensive Technologies (WOOT '26)2026-08-10
Demonstrates turning arbitrary file-overwrite into persistent code execution by replacing an app’s ART image; builds two exploits: a local ASLR-leak chain that…
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FuzzBT: Holistic-State-Guided Fuzzing for Bluetooth Host Stack in Kernels20th USENIX WOOT Conference on Offensive Technologies (WOOT '26)2026-08-10
FuzzBT builds a fuzzer that iterates over kernel Bluetooth configurations and extracts configuration-aware seeds via concolic/symbolic execution, instruments…
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Squeezing Juicy Variant Bugs Out of Modern Browsers20th USENIX WOOT Conference on Offensive Technologies (WOOT '26)2026-08-10
GRAPE is a ruleable variant analysis pipeline that models bugs with four elements context, assumption, violation, end use and uses pattern rules to scan large…
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Gradient: Gradual Compartmentalization via Object Capabilities Tracked in TypesOOPSLA 20242024-10-20
Proposal implements a Scala extension called Gradient that lets legacy code be migrated incrementally to an object-capability model by combining runtime…
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Exploiting Android’s Hardened Memory AllocatorWOOT '242024-08-12
Scudo is the default native heap on Android since Android 11 and the paper shows two concrete exploitation techniques that trick Scudo into allocating a chunk…
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Monarch: A Fuzzing Framework for Distributed File SystemsUSENIX ATC 20242024-07-10
MONARCH builds a push-button fuzzer that tests POSIX DFSes across VMs with deterministic fault injection at syscall granularity, unified cross-node coverage…
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BLESA: Spoofing Attacks against Reconnections in Bluetooth Low EnergyWOOT '202020-08-11
Formal analysis finds two BLE reconnection design flaws that let an attacker impersonate a previously paired device and inject spoofed data. The authors build…
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FuZZan: Efficient Sanitizer Metadata Design for FuzzingUSENIX ATC '202020-07-15
FuZZan replaces ASan’s heavy shadow memory with two compact metadata layouts (mean-shadow and arbitrary metadata), adds a runtime dynamic metadata switching…
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ACES: Automatic Compartments for Embedded SystemsUSENIX Security '182018-08-15
ACES is an LLVM-based compiler that auto-infers compartments for bare‑metal embedded code, uses static analysis plus a micro‑emulator and the MPU to enforce…
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Venerable Variadic Vulnerabilities Vanquished26th USENIX Security Symposium (USENIX Security '17)2017-08-16
A compiler-based sanitizer called HexVASAN records call-site metadata and verifies variadic argument types at runtime via an LLVM compiler pass plus a runtime…
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Silently Breaking ASLR In The CloudBlack Hat Europe 20152015-11-10
Demonstrates a practical side‑channel that uses memory deduplication (KSM/Page‑fusion) by measuring slow copy‑on‑write times to detect shared pages, then…
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