CVE-2020-15473 : Security Advisory and Response
Learn about CVE-2020-15473, a vulnerability in nDPI through 3.2 affecting the OpenVPN dissector, leading to a heap-based buffer over-read. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
In nDPI through 3.2, the OpenVPN dissector is vulnerable to a heap-based buffer over-read in ndpi_search_openvpn in lib/protocols/openvpn.c.
Understanding CVE-2020-15473
What is CVE-2020-15473?
CVE-2020-15473 is a vulnerability in nDPI through version 3.2 that affects the OpenVPN dissector, leading to a heap-based buffer over-read in the specific file mentioned.
The Impact of CVE-2020-15473
This vulnerability could potentially allow an attacker to exploit the heap-based buffer over-read, leading to information disclosure or a denial of service.
Technical Details of CVE-2020-15473
Vulnerability Description
The vulnerability in nDPI through version 3.2 allows for a heap-based buffer over-read in the ndpi_search_openvpn function within lib/protocols/openvpn.c.
Affected Systems and Versions
- Product: n/a
- Vendor: n/a
- Versions: n/a
Exploitation Mechanism
The vulnerability can be exploited by an attacker to trigger a heap-based buffer over-read, potentially leading to further malicious activities.
Mitigation and Prevention
Immediate Steps to Take
- Update nDPI to version 3.3 or later to mitigate the vulnerability.
- Monitor network traffic for any suspicious activities that could indicate exploitation of the vulnerability.
Long-Term Security Practices
- Regularly update and patch software to ensure known vulnerabilities are addressed promptly.
- Implement network segmentation and access controls to limit the impact of potential attacks.
Patching and Updates
Ensure that all systems running nDPI are regularly updated with the latest patches and security fixes.