CVE-2021-41682 : Vulnerability Insights and Analysis
Learn about CVE-2021-41682, a heap-use-after-free vulnerability in JerryScript 2.4.0 that could allow arbitrary code execution. Find mitigation steps and system protection measures here.
This CVE involves a heap-use-after-free vulnerability in JerryScript 2.4.0.
Understanding CVE-2021-41682
This vulnerability exists in the ecma_compare_ecma_non_direct_strings function within JerryScript.
What is CVE-2021-41682?
The issue relates to a heap-use-after-free vulnerability at ecma-helpers-string.c:1940 in JerryScript 2.4.0.
The Impact of CVE-2021-41682
This vulnerability could allow an attacker to execute arbitrary code or cause a denial of service by exploiting the heap-use-after-free condition.
Technical Details of CVE-2021-41682
This section covers the technical aspects of the vulnerability.
Vulnerability Description
The vulnerability occurs at ecma-helpers-string.c:1940 in ecma_compare_ecma_non_direct_strings in JerryScript 2.4.0, leading to a heap-use-after-free situation.
Affected Systems and Versions
- Affected Systems: JerryScript 2.4.0
- Affected Versions: All versions up to 2.4.0
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating memory allocation to trigger the use-after-free condition.
Mitigation and Prevention
Protective measures for organizations and users.
Immediate Steps to Take
- Update JerryScript to a patched version immediately.
- Monitor for any signs of unusual activity in the system.
Long-Term Security Practices
- Conduct regular security audits and code reviews.
- Educate developers on secure coding practices to prevent similar vulnerabilities.
Patching and Updates
Ensure all software components are regularly updated with the latest security patches.