CVE-2021-26197 : Vulnerability Insights and Analysis
Discover the impact of CVE-2021-26197, a vulnerability in JerryScript 2.4.0 leading to a SEGV issue in the main-utils.c file. Learn about affected systems, exploitation, and mitigation steps.
An issue was discovered in JerryScript 2.4.0 that triggers a SEGV in main_print_unhandled_exception in the main-utils.c file.
Understanding CVE-2021-26197
This CVE, assigned on January 25, 2021, affects JerryScript 2.4.0 and was made public on January 2, 2021.
What is CVE-2021-26197?
CVE-2021-26197 is a vulnerability in JerryScript 2.4.0 that causes a segmentation fault when executing main_print_unhandled_exception in the main-utils.c file.
The Impact of CVE-2021-26197
The vulnerability poses a risk of denial of service or potential remote code execution by an attacker leveraging the SEGV issue.
Technical Details of CVE-2021-26197
Vulnerability Description
The vulnerability in JerryScript 2.4.0 leads to a SEGV in main_print_unhandled_exception in the main-utils.c file.
Affected Systems and Versions
All systems running JerryScript 2.4.0 are affected by this vulnerability.
Exploitation Mechanism
An attacker can exploit this vulnerability to cause a denial of service condition or potentially execute arbitrary code remotely.
Mitigation and Prevention
Immediate Steps to Take
- Apply official patches and updates released by the vendor promptly.
- Implement proper input validation to mitigate the risk of exploitation.
Long-Term Security Practices
- Regularly monitor for security advisories and updates from JerryScript.
- Conduct security audits and penetration testing to identify vulnerabilities proactively.
Patching and Updates
Ensure that you regularly update JerryScript to the latest version to mitigate the CVE-2021-26197 vulnerability effectively.