CVE-2020-15475 : What You Need to Know

In nDPI through 3.2, ndpi_reset_packet_line_info in lib/ndpi_main.c omits certain reinitialization, leading to a use-after-free.

Understanding CVE-2020-15475

This CVE describes a vulnerability in nDPI through version 3.2 that can result in a use-after-free due to omitted reinitialization in a specific function.

What is CVE-2020-15475?

CVE-2020-15475 is a vulnerability in the nDPI software library that can be exploited to trigger a use-after-free condition by omitting certain reinitialization steps.

The Impact of CVE-2020-15475

The vulnerability can potentially be exploited by attackers to execute arbitrary code or cause a denial of service (DoS) condition on systems running the affected nDPI versions.

Technical Details of CVE-2020-15475

This section provides more technical insights into the vulnerability.

Vulnerability Description

The issue lies in the ndpi_reset_packet_line_info function in lib/ndpi_main.c, where certain reinitialization steps are skipped, leading to the use-after-free vulnerability.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Versions affected: n/a

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting malicious packets to trigger the use-after-free condition, potentially leading to unauthorized code execution.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2020-15475.

Immediate Steps to Take

Update to a patched version of nDPI that addresses the use-after-free vulnerability.
Monitor network traffic for any signs of exploitation attempts.

Long-Term Security Practices

Regularly update software and libraries to patch known vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Stay informed about security updates for nDPI and promptly apply patches to secure systems against known vulnerabilities.