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CVE-2020-18382

Description

Heap-buffer-overflow in /src/wasm/wasm-binary.cpp in wasm::WasmBinaryBuilder::visitBlock(wasm::Block*) in Binaryen 1.38.26. A crafted wasm input can cause a segmentation fault, leading to denial-of-service, as demonstrated by wasm-opt.

POC

Reference

- https://github.com/WebAssembly/binaryen/issues/1900

Github

No PoCs found on GitHub currently.