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CVE-2019-7700

Description

A heap-based buffer over-read was discovered in wasm::WasmBinaryBuilder::visitCall in wasm-binary.cpp in Binaryen 1.38.22. A crafted wasm input can cause a segmentation fault, leading to denial-of-service, as demonstrated by wasm-merge.

POC

Reference

- https://github.com/WebAssembly/binaryen/issues/1864

Github

No PoCs found on GitHub currently.