CVE-2019-14493 : Security Advisory and Response

OpenCV versions earlier than 4.1.1 are affected by a vulnerability in the cv::XMLParser::parse function that leads to a NULL pointer access.

Understanding CVE-2019-14493

This CVE identifies a specific issue within OpenCV versions prior to 4.1.1 that can result in a NULL pointer dereference.

What is CVE-2019-14493?

CVE-2019-14493 is a vulnerability found in OpenCV versions before 4.1.1, specifically in the cv::XMLParser::parse function located at modules/core/src/persistence.cpp. The flaw allows for incorrect access to a NULL pointer.

The Impact of CVE-2019-14493

The vulnerability can be exploited to cause a denial of service (DoS) or potentially execute arbitrary code on the affected system.

Technical Details of CVE-2019-14493

This section delves into the technical aspects of the CVE.

Vulnerability Description

The issue arises from a NULL pointer dereference in the cv::XMLParser::parse function within OpenCV versions earlier than 4.1.1.

Affected Systems and Versions

OpenCV versions prior to 4.1.1 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious input that triggers the incorrect access to a NULL pointer, potentially leading to system compromise.

Mitigation and Prevention

Protecting systems from CVE-2019-14493 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update OpenCV to version 4.1.1 or later to mitigate the vulnerability.
Monitor vendor security advisories for patches and updates related to this CVE.

Long-Term Security Practices

Regularly update software and libraries to the latest versions to address known vulnerabilities.
Implement proper input validation mechanisms to prevent NULL pointer dereference vulnerabilities.

Patching and Updates

Apply patches provided by OpenCV promptly to address the vulnerability and enhance system security.