CVE-2019-14491 Explained : Impact and Mitigation
Learn about CVE-2019-14491, an out of bounds read vulnerability in OpenCV versions before 3.4.7 and 4.x before 4.1.1, potentially leading to denial of service. Find mitigation steps and prevention measures.
OpenCV versions before 3.4.7 and 4.x before 4.1.1 are affected by an out of bounds read vulnerability in the cv::predictOrderedcv::HaarEvaluator function, potentially leading to denial of service.
Understanding CVE-2019-14491
This CVE involves a specific vulnerability in OpenCV that can have serious consequences if exploited.
What is CVE-2019-14491?
CVE-2019-14491 is a vulnerability found in earlier versions of OpenCV, specifically versions before 3.4.7 and 4.x before 4.1.1. The issue arises from an out of bounds read within the cv::predictOrderedcv::HaarEvaluator function in cascadedetect.hpp.
The Impact of CVE-2019-14491
The vulnerability can result in denial of service, potentially allowing attackers to disrupt the normal operation of systems utilizing the affected OpenCV versions.
Technical Details of CVE-2019-14491
This section provides more in-depth technical information about the CVE.
Vulnerability Description
The vulnerability involves an out of bounds read in the cv::predictOrderedcv::HaarEvaluator function in cascadedetect.hpp within the modules/objdetect/src directory of OpenCV.
Affected Systems and Versions
- OpenCV versions before 3.4.7
- OpenCV 4.x before 4.1.1
Exploitation Mechanism
Attackers can exploit this vulnerability to trigger an out of bounds read, potentially leading to a denial of service condition.
Mitigation and Prevention
Protecting systems from CVE-2019-14491 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update OpenCV to versions 3.4.7 or 4.1.1 or later to mitigate the vulnerability.
- Monitor for any unusual system behavior that could indicate exploitation.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions to patch known vulnerabilities.
- Implement network security measures to detect and block malicious activities.
Patching and Updates
- Apply patches provided by OpenCV promptly to address the out of bounds read vulnerability and enhance system security.