CVE-2020-23309 : Exploit Details and Defense Strategies
Learn about CVE-2020-23309, an assertion failure vulnerability in JerryScript 2.2.0, its impact, affected systems, exploitation mechanism, and mitigation steps to secure your systems.
This CVE-2020-23309 article provides insights into a specific vulnerability in JerryScript 2.2.0, highlighting its impact, technical details, and mitigation strategies.
Understanding CVE-2020-23309
What is CVE-2020-23309?
An assertion failure occurs in JerryScript 2.2.0 at js-parser-statm.c:2756 during the parsing of statements.
The Impact of CVE-2020-23309
The vulnerability may lead to a denial of service (DoS) attack or potentially allow an attacker to execute arbitrary code.
Technical Details of CVE-2020-23309
Vulnerability Description
The assertion 'context_p->stack_depth == context_p->context_stack_depth' fails during the parsing of statements in JerryScript 2.2.0.
Affected Systems and Versions
- Vendor: n/a
- Product: n/a
- Version: JerryScript 2.2.0
Exploitation Mechanism
The vulnerability can be exploited by crafting malicious inputs to trigger the assertion failure.
Mitigation and Prevention
Immediate Steps to Take
- Update JerryScript to a patched version that addresses the assertion failure.
- Monitor for any unusual activities on the system.
Long-Term Security Practices
- Regularly update software and libraries to mitigate potential vulnerabilities.
- Implement code review processes to catch similar issues in the future.
Patching and Updates
Apply patches and updates provided by JerryScript to fix the vulnerability.