CVE-2018-7714 : Exploit Details and Defense Strategies
Learn about CVE-2018-7714, a vulnerability in OpenCV 3.4.1 that allows remote attackers to trigger a denial of service. Find out about the impact, affected systems, exploitation mechanism, and mitigation steps.
CVE-2018-7714 was published on March 5, 2018, and involves a vulnerability in OpenCV 3.4.1 that can be exploited by remote attackers, leading to a denial of service due to an assertion failure. The issue lies in the validateInputImageSize function in modules/imgcodecs/src/loadsave.cpp.
Understanding CVE-2018-7714
This CVE entry highlights a vulnerability in OpenCV 3.4.1 that can be leveraged by attackers to cause a denial of service through an assertion failure.
What is CVE-2018-7714?
The vulnerability in OpenCV 3.4.1 allows remote attackers to trigger a denial of service by exploiting the validateInputImageSize function in modules/imgcodecs/src/loadsave.cpp. The issue arises when the condition (pixels <= (1<<30)) evaluates to false.
The Impact of CVE-2018-7714
The exploitation of this vulnerability can result in a denial of service due to an assertion failure in OpenCV 3.4.1. It is crucial to note that the CV_Assert in OpenCV is a regular C++ exception, not a C-like assert().
Technical Details of CVE-2018-7714
This section delves into the technical aspects of the CVE-2018-7714 vulnerability.
Vulnerability Description
The vulnerability in OpenCV 3.4.1 arises from the validateInputImageSize function in modules/imgcodecs/src/loadsave.cpp, where remote attackers can exploit it to cause a denial of service due to an assertion failure.
Affected Systems and Versions
- Product: OpenCV 3.4.1
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
The vulnerability is exploited through the validateInputImageSize function in OpenCV 3.4.1, where the condition (pixels <= (1<<30)) being false triggers the denial of service.
Mitigation and Prevention
To address CVE-2018-7714, consider the following mitigation strategies:
Immediate Steps to Take
- Update OpenCV to a patched version if available
- Monitor for any unusual denial of service activities
Long-Term Security Practices
- Regularly update software and libraries to the latest versions
- Implement network security measures to detect and prevent denial of service attacks
Patching and Updates
- Stay informed about security updates for OpenCV
- Apply patches promptly to mitigate known vulnerabilities