CVE-2021-46054
NixOS vulnerability analysis and mitigation

Overview

A Denial of Service vulnerability exists in Binaryen 104 due to an assertion abort in wasm::WasmBinaryBuilder::visitRethrow(wasm::Rethrow*). The vulnerability was discovered and disclosed on December 25, 2021 (GitHub Issue).

Technical details

The vulnerability is triggered when processing WebAssembly binary code, specifically in the visitRethrow function of the WasmBinaryBuilder class. The issue manifests as an assertion failure when curr->target equals DELEGATECALLERTARGET, which leads to a program abort. The vulnerability has been assigned a CVSS v3.1 base score of 5.5 MEDIUM (Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H) (NVD).

Impact

The vulnerability results in a Denial of Service condition through an assertion abort, which can cause the program to terminate unexpectedly. This affects the availability of services using Binaryen 104 for WebAssembly processing (NVD).

Additional resources


SourceThis report was generated using AI

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