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Vulnerability DatabaseCVE-2021-46339

CVE-2021-46339: 
Homebrew vulnerability analysis and mitigation

Overview

There is an Assertion 'litisvalidcesu8string (stringp, stringsize)' failure vulnerability in JerryScript 3.0.0, specifically in the ecmanewecmastringfrom_utf8 function located in /base/ecma-helpers-string.c. This vulnerability was discovered in January 2022 (NVD, GitHub Issue).

Technical details

The vulnerability manifests as an assertion failure in the string handling functionality when processing UTF-8 strings. The issue occurs specifically at line 371 of ecma-helpers-string.c in the ecmanewecmastringfrom_utf8 function. According to the National Vulnerability Database, this has been assigned a CVSS v3.1 Base Score of 5.5 (Medium) with vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H (NVD).

Impact

The vulnerability can lead to a denial of service condition through assertion failure when processing certain UTF-8 strings. The impact is primarily on availability, with no direct impact on confidentiality or integrity of the system (NVD).

Mitigation and workarounds

As of the vulnerability disclosure, there is no documented fix or workaround available in the public sources. Users are advised to monitor the JerryScript project for security updates addressing this vulnerability.

Additional resources

Source: This report was generated using AI

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