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Vulnerability DatabaseCVE-2021-46322

CVE-2021-46322: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2021-46322 affects Duktape v2.99.99, an embeddable Javascript engine. The vulnerability was discovered on January 10, 2022, and involves a SEGV (segmentation fault) vulnerability in the component dukpushtval within duktape/dukapistack.c (GitHub Issue).

Technical details

The vulnerability manifests as a segmentation fault when the application reaches certain stack limits. The issue was discovered during testing with UBSAN (Undefined Behavior Sanitizer) and produces a SEGV on unknown address when executing specially crafted JavaScript code. The vulnerability has 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

When exploited, the vulnerability causes a segmentation fault in the application, leading to a crash of the Duktape JavaScript engine. This primarily affects the availability of applications using the affected Duktape versions (NVD).

Mitigation and workarounds

The vulnerability has been fixed in various distributions including Debian 10 (Buster) with version 2.3.0-1+deb10u1. Users are recommended to upgrade their duktape packages to the patched versions (Debian Advisory).

Additional resources

Source: This report was generated using AI

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