CVE-2021-41683 : Security Advisory and Response

This CVE involves a stack-overflow vulnerability in JerryScript 2.4.0.

Understanding CVE-2021-41683

This CVE identifies a specific vulnerability within JerryScript 2.4.0.

What is CVE-2021-41683?

The vulnerability occurs due to a stack-overflow at ecma-helpers.c:326 in the ecma_get_lex_env_type function within JerryScript 2.4.0.

The Impact of CVE-2021-41683

The vulnerability can potentially be exploited by attackers to execute arbitrary code or cause a denial of service on systems running the affected version.

Technical Details of CVE-2021-41683

This section outlines the technical details of the CVE.

Vulnerability Description

The vulnerability is a stack-overflow at ecma-helpers.c:326 in ecma_get_lex_env_type in JerryScript 2.4.0.

Affected Systems and Versions

Affected Version: JerryScript 2.4.0

Exploitation Mechanism

Attackers can exploit this vulnerability to trigger a stack-overflow, potentially leading to the execution of malicious code.

Mitigation and Prevention

Protect your systems against CVE-2021-41683.

Immediate Steps to Take

Update JerryScript to a non-vulnerable version if available.
Implement security measures to prevent stack-overflow attacks.

Long-Term Security Practices

Regularly update software to patch known vulnerabilities.
Implement code reviews and static analysis to catch potential stack-overflow issues.

Patching and Updates

Stay informed about security updates for JerryScript and apply patches promptly.