CVE-2020-18382: 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…

PriorityP428medium6.5CVSS 3.1

AVNACLPRNUIRSUCNINAH

EPSS

0.53%

41.0th percentile

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.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
debian	binaryen	< binaryen 68-1 (bookworm)	binaryen 68-1 (bookworm)
webassembly	binaryen	—	—
webassembly	binaryen	>= 0 < 68-1	68-1
webassembly	binaryen	>= 0 < 68-1	68-1
webassembly	binaryen	>= 0 < 68-1	68-1
webassembly	binaryen	>= 0 < 68-1	68-1

CVSS provenance

nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

osv6.5MEDIUM

vendor_debian6.5MEDIUM

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