CVE-2019-14492 : Vulnerability Insights and Analysis

OpenCV versions before 3.4.7 and 4.x before 4.1.1 are affected by a vulnerability in the HaarEvaluator::OptFeature::calc function, leading to a denial of service.

Understanding CVE-2019-14492

This CVE involves an out-of-bounds read/write issue in OpenCV, potentially resulting in a denial of service.

What is CVE-2019-14492?

CVE-2019-14492 is a vulnerability found in earlier versions of OpenCV, specifically versions prior to 3.4.7 and 4.x before 4.1.1. The flaw exists in the HaarEvaluator::OptFeature::calc function within cascadedetect.hpp, allowing unauthorized data access beyond specified boundaries.

The Impact of CVE-2019-14492

The vulnerability can be exploited to cause a denial of service, disrupting the normal operation of affected systems.

Technical Details of CVE-2019-14492

This section provides detailed technical information about the CVE.

Vulnerability Description

The issue lies in the HaarEvaluator::OptFeature::calc function in cascadedetect.hpp, enabling unauthorized data access beyond specified boundaries, potentially leading to a denial of service.

Affected Systems and Versions

OpenCV versions before 3.4.7
OpenCV 4.x versions before 4.1.1

Exploitation Mechanism

The vulnerability allows attackers to read or write data beyond specified bounds, causing a denial of service.

Mitigation and Prevention

Protect your systems from CVE-2019-14492 with the following steps:

Immediate Steps to Take

Update OpenCV to version 3.4.7 or 4.1.1 or later to mitigate the vulnerability.
Monitor for any unusual system behavior that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update software and apply security patches to prevent known vulnerabilities.
Implement network security measures to detect and block malicious activities.

Patching and Updates

Stay informed about security advisories and updates from OpenCV to address vulnerabilities promptly.