CVE-2021-46474 : Exploit Details and Defense Strategies
Learn about CVE-2021-46474, a critical heap buffer overflow vulnerability in Jsish v3.5.0 that may lead to a Denial of Service (DoS) attack. Find out how to mitigate and prevent this security issue.
Jsish v3.5.0 contains a heap buffer overflow vulnerability in jsiEvalCodeSub in src/jsiEval.c, potentially resulting in a Denial of Service (DoS).
Understanding CVE-2021-46474
What is CVE-2021-46474?
Jsish v3.5.0 has a critical heap buffer overflow vulnerability that can be exploited to trigger a DoS condition.
The Impact of CVE-2021-46474
The vulnerability in Jsish v3.5.0 can lead to a Denial of Service, disrupting normal system functionality.
Technical Details of CVE-2021-46474
Vulnerability Description
Jsish v3.5.0 is prone to a heap buffer overflow via jsiEvalCodeSub in src/jsiEval.c, allowing attackers to create a DoS situation.
Affected Systems and Versions
- Affected Version: Jsish v3.5.0
- Platforms: Not specified
Exploitation Mechanism
- Attackers can exploit the heap buffer overflow by manipulating the jsiEvalCodeSub function, inducing a DoS condition.
Mitigation and Prevention
Immediate Steps to Take
- Update Jsish to a secure version to mitigate the vulnerability.
- Consider network-layer security mechanisms to minimize potential threats.
Long-Term Security Practices
- Implement secure coding practices to prevent buffer overflows.
- Regularly monitor for security updates and vulnerabilities.
Patching and Updates
- Regularly check for security patches and updates from Jsish to fix known vulnerabilities.