CVE-2021-46339 : Exploit Details and Defense Strategies
Discover the impact and mitigation steps for CVE-2021-46339, a vulnerability in JerryScript 3.0.0. Learn about affected systems, exploitation, and prevention measures.
JerryScript 3.0.0 has a vulnerability where an assertion fails, detailed in the CVE-2021-46339 record.
Understanding CVE-2021-46339
This CVE record highlights a specific vulnerability in JerryScript 3.0.0.
What is CVE-2021-46339?
The vulnerability in JerryScript 3.0.0 is due to an assertion failure 'lit_is_valid_cesu8_string (string_p, string_size)' occurring at /base/ecma-helpers-string.c(ecma_new_ecma_string_from_utf8).
The Impact of CVE-2021-46339
The vulnerability can potentially lead to security breaches, unauthorized access, or system compromise.
Technical Details of CVE-2021-46339
The technical aspects of the CVE-2021-46339 vulnerability.
Vulnerability Description
JerryScript version 3.0.0 experiences an assertion failure 'lit_is_valid_cesu8_string (string_p, string_size)' in the specified file.
Affected Systems and Versions
- Affected Version: JerryScript 3.0.0
- All previous versions may also be impacted
Exploitation Mechanism
The vulnerability can be exploited by specially crafted input causing the assertion to fail, potentially leading to unforeseen behavior.
Mitigation and Prevention
Actions to mitigate and prevent the exploitation of CVE-2021-46339.
Immediate Steps to Take
- Update JerryScript to the latest version
- Apply patches provided by the vendor
Long-Term Security Practices
- Regularly update software to address vulnerabilities
- Conduct security audits and code reviews periodically
Patching and Updates
- Stay informed about security updates for JerryScript
- Follow best practices for secure coding and handling of assertions