CVE-2020-18378
NixOS vulnerability analysis and mitigation

Overview

A NULL pointer dereference vulnerability was discovered in SExpressionWasmBuilder::makeBlock in wasm/wasm-s-parser.c in Binaryen version 1.38.26. The vulnerability is tracked as CVE-2020-18378 and was publicly disclosed in August 2023 (NVD).

Technical details

The vulnerability is a NULL pointer dereference issue that occurs in the SExpressionWasmBuilder::makeBlock function within the wasm/wasm-s-parser.c file. The CVSS v3.1 base score is 6.5 (Medium), with the following vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. The vulnerability has been classified as CWE-476 (NULL Pointer Dereference) (NVD).

Impact

When exploited, this vulnerability can cause a segmentation fault leading to denial-of-service conditions, particularly when using the wasm-as tool. The impact primarily affects the availability of systems running the vulnerable version of Binaryen (NVD).

Additional resources


SourceThis report was generated using AI

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