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Vulnerability DatabaseCVE-2021-46343
CVE-2021-46343:
Homebrew vulnerability analysis and mitigation
Overview
A vulnerability was discovered in JerryScript version 3.0.0 where an assertion failure occurs in the parser component. The vulnerability is identified as CVE-2021-46343 and was disclosed in January 2022. The issue specifically manifests when the assertion 'contextp->token.type == LEXERLITERAL' fails at /jerry-core/parser/js/js-parser-expr.c in the parsercheckduplicatedprivatefield function (GitHub Issue).
Technical details
The vulnerability is a parser assertion failure that occurs in the JavaScript parsing component of JerryScript. According to the National Vulnerability Database, this issue has been assigned a CVSS v3.1 Base Score of 5.5 (MEDIUM) with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H. The vulnerability is triggered when processing certain JavaScript code constructs, particularly when handling private class fields (NVD).
Impact
The vulnerability can lead to a denial of service condition through application crash when processing specific JavaScript code patterns. The impact is primarily on availability, with no direct effect on confidentiality or integrity of the system (NVD).
Additional resources
Source: This report was generated using AI
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