CVE-2021-29327 : Vulnerability Insights and Analysis
Learn about CVE-2021-29327, a heap buffer overflow vulnerability in Moddable v10.5.0. Discover the impact, technical details, affected systems, and mitigation steps.
OpenSource Moddable v10.5.0 has been found to have a heap buffer overflow vulnerability in the fx_ArrayBuffer function located at /moddable/xs/sources/xsDataView.c.
Understanding CVE-2021-29327
This CVE identifies a specific vulnerability in the Moddable open-source software version 10.5.0.
What is CVE-2021-29327?
The heap buffer overflow vulnerability in the fx_ArrayBuffer function of Moddable v10.5.0 allows attackers to potentially execute arbitrary code or crash the application by overwriting memory locations.
The Impact of CVE-2021-29327
This vulnerability could be exploited by malicious actors to launch remote code execution attacks or cause denial of service on systems running the affected Moddable version.
Technical Details of CVE-2021-29327
The technical details of the CVE-2021-29327 vulnerability include:
Vulnerability Description
The vulnerability exists in the fx_ArrayBuffer function due to improper input validation, leading to a heap buffer overflow.
Affected Systems and Versions
Moddable v10.5.0 is the only known affected version by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting specially designed input to trigger the heap buffer overflow and gain unauthorized access or disrupt the system's functionality.
Mitigation and Prevention
To address CVE-2021-29327 and enhance system security, consider the following mitigation strategies:
Immediate Steps to Take
- Apply security patches or updates provided by Moddable to fix the heap buffer overflow vulnerability.
- Limit exposure by restricting network access to vulnerable systems.
Long-Term Security Practices
- Regularly update software and firmware to prevent known vulnerabilities and enhance overall system security.
- Implement secure coding practices to minimize the risk of buffer overflow vulnerabilities.
Patching and Updates
Stay informed about security advisories from Moddable and promptly apply any patches or updates released to address CVE-2021-29327.