CVE-2021-46499 : Exploit Details and Defense Strategies
Learn about CVE-2021-46499 found in Jsish v3.5.0, a heap-use-after-free issue leading to potential Denial of Service. Find out the impact, affected versions, and mitigation steps.
Jsish v3.5.0 contains a heap-use-after-free vulnerability that can result in a Denial of Service (DoS).
Understanding CVE-2021-46499
What is CVE-2021-46499?
CVE-2021-46499 is a vulnerability found in Jsish v3.5.0 due to a heap-use-after-free issue in jsi_ValueCopyMove in src/jsiValue.c, potentially leading to a DoS attack.
The Impact of CVE-2021-46499
This vulnerability allows attackers to exploit the heap-use-after-free flaw, resulting in a potential Denial of Service (DoS) condition, impacting the availability of the system.
Technical Details of CVE-2021-46499
Vulnerability Description
Jsish v3.5.0 is susceptible to a heap-use-after-free flaw when processing jsi_ValueCopyMove in src/jsiValue.c.
Affected Systems and Versions
- Affected Versions: Jsish v3.5.0
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating memory in a way that triggers the use-after-free condition, potentially leading to a DoS attack.
Mitigation and Prevention
Immediate Steps to Take
- Update Jsish to the latest version to patch the heap-use-after-free vulnerability.
- Implement proper input validation to prevent malicious exploitation.
Long-Term Security Practices
- Regularly monitor security advisories for Jsish and apply updates promptly.
Patching and Updates
Ensure timely patching of Jsish and other dependencies to mitigate the risk of heap-use-after-free vulnerabilities.