CVE-2021-46478 : Security Advisory and Response
Learn about CVE-2021-46478 affecting Jsish v3.5.0. Explore the impact, technical details, affected systems, mitigation steps, and preventive measures against this heap buffer overflow vulnerability.
Jsish v3.5.0 has been found to have a heap buffer overflow vulnerability via jsiClearStack in src/jsiEval.c, potentially leading to Denial of Service (DoS).
Understanding CVE-2021-46478
What is CVE-2021-46478?
CVE-2021-46478 is a vulnerability in Jsish v3.5.0 that allows an attacker to trigger a heap buffer overflow by exploiting the jsiClearStack function in src/jsiEval.c, opening the door to DoS attacks.
The Impact of CVE-2021-46478
This vulnerability could result in a Denial of Service (DoS) condition, where the affected application becomes unresponsive or crashes, disrupting normal operations.
Technical Details of CVE-2021-46478
Vulnerability Description
Jsish v3.5.0 is susceptible to a heap buffer overflow triggered through the jsiClearStack function in src/jsiEval.c, providing an avenue for malicious actors to execute DoS attacks.
Affected Systems and Versions
- Product: Jsish
- Version: 3.5.0
Exploitation Mechanism
The vulnerability can be exploited by crafting specially designed inputs to trigger the overflow, potentially causing a denial of service on the target system.
Mitigation and Prevention
Immediate Steps to Take
- Apply the latest patches or updates provided by the vendor promptly.
- Consider implementing input validation mechanisms to prevent buffer overflow vulnerabilities.
Long-Term Security Practices
- Conduct regular security assessments and vulnerability scans on applications.
- Stay informed about security updates and vulnerabilities related to Jsish or similar software.
Patching and Updates
It is crucial to stay updated with patches and security advisories from Jsish or the relevant vendor to address and mitigate the CVE-2021-46478 vulnerability.