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Vulnerability DatabaseCVE-2021-46344

CVE-2021-46344: 
Homebrew vulnerability analysis and mitigation

Overview

CVE-2021-46344 is a vulnerability discovered in JerryScript version 3.0.0, specifically affecting the parser component. The issue was identified as an assertion failure in the parserparseobject_initializer function within the /jerry-core/parser/js/js-parser-expr.c file. The vulnerability was disclosed in January 2022 (JerryScript Issue).

Technical details

The vulnerability manifests as an assertion failure with the condition 'flags & PARSERPATTERNHASRESTELEMENT' in the parserparseobject_initializer function. The issue occurs when processing certain JavaScript code patterns involving object destructuring with rest elements in async functions and for-await-of loops (JerryScript Issue).

Impact

When triggered, the vulnerability causes the JerryScript engine to abort execution with an internal assertion failure. This results in a denial of service condition as the engine terminates unexpectedly (Oracle Linux Bulletin).

Mitigation and workarounds

The vulnerability affects JerryScript version 3.0.0. Users should upgrade to a patched version of JerryScript when available. The issue has been acknowledged and tracked in vendor security bulletins, including Oracle Linux (Oracle Linux Bulletin).

Additional resources

Source: This report was generated using AI

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