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CVE-2020-18378

Medium

Description

A NULL pointer dereference was discovered in SExpressionWasmBuilder::makeBlock in wasm/wasm-s-parser.c in Binaryen 1.38.26. A crafted wasm input can cause a segmentation fault, leading to denial-of-service, as demonstrated by wasm-as.

SeverityMedium
CVSS6.5
Exploit probability—
ProductWebassembly Binaryen
PublishedAug 22, 2023
First seenAug 22, 2023
Weakness typeCWE-476NULL pointer dereference

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
webassembly binaryen1.38.26—

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