Discover insights into CVE-2021-36535, a Buffer Overflow vulnerability in Cesanta mJS 1.26 allowing remote attackers to cause denial of service via crafted .js file to mjs_set_errorf.
Buffer Overflow vulnerability in Cesanta mJS 1.26 allows remote attackers to cause a denial of service via crafted .js file to mjs_set_errorf.
Understanding CVE-2021-36535
This article provides insights into the Buffer Overflow vulnerability identified in Cesanta mJS 1.26.
What is CVE-2021-36535?
CVE-2021-36535 is a Buffer Overflow vulnerability in Cesanta mJS 1.26 that allows remote attackers to trigger a denial of service through a specifically crafted .js file to mjs_set_errorf.
The Impact of CVE-2021-36535
This vulnerability can be exploited by remote attackers to disrupt the functionality of Cesanta mJS 1.26, leading to a denial of service condition.
Technical Details of CVE-2021-36535
Let's delve into the specific technical aspects of CVE-2021-36535.
Vulnerability Description
The Buffer Overflow vulnerability in Cesanta mJS 1.26 enables attackers to exploit a flaw via a malicious .js file to mjs_set_errorf, resulting in a denial of service.
Affected Systems and Versions
All versions of Cesanta mJS 1.26 are affected by this vulnerability.
Exploitation Mechanism
Remote attackers can exploit this vulnerability by sending a manipulated .js file to mjs_set_errorf, causing the system to crash and deny service.
Mitigation and Prevention
Understanding how to mitigate and prevent CVE-2021-36535 is crucial for maintaining system security.
Immediate Steps to Take
To mitigate the risk, it is recommended to restrict access to the vulnerable component and sanitize inputs to prevent buffer overflow attacks.
Long-Term Security Practices
Implementing secure coding practices, conducting regular security audits, and staying updated on security patches are vital for long-term security.
Patching and Updates
Ensure timely application of patches and updates provided by the software vendor to address CVE-2021-36535 and strengthen system defenses.