Use-after-free vulnerability in Binaryen 1.38.22 allows remote attackers to cause denial-of-service via a crafted wasm file

Use-after-free vulnerability in Binaryen 1.38.22 allows remote attackers to cause denial-of-service via a crafted wasm file

CVE-2019-7703 · MEDIUM Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

In Binaryen 1.38.22, there is a use-after-free problem in wasm::WasmBinaryBuilder::visitCall in wasm-binary.cpp. Remote attackers could leverage this vulnerability to cause a denial-of-service via a wasm file, as demonstrated by wasm-merge.

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