CVE-2018-7713 : Security Advisory and Response
Discover the impact of CVE-2018-7713 in OpenCV version 3.4.1. Learn about the denial of service vulnerability and how to mitigate the risk through patches and updates.
OpenCV version 3.4.1 contains a vulnerability in the validateInputImageSize function that can be exploited by remote attackers to trigger a denial of service attack. The issue arises when the condition (size.width <= (1<<20)) evaluates to false, leading to an assertion failure.
Understanding CVE-2018-7713
In this section, we will delve into the details of the CVE-2018-7713 vulnerability.
What is CVE-2018-7713?
The vulnerability in OpenCV version 3.4.1 allows remote attackers to exploit the validateInputImageSize function to cause a denial of service by triggering an assertion failure.
The Impact of CVE-2018-7713
The vulnerability can result in a denial of service attack, specifically an assertion failure, when the condition (size.width <= (1<<20)) is false. It is crucial to understand that the CV_Assert in OpenCV behaves differently from traditional C assertions.
Technical Details of CVE-2018-7713
Let's explore the technical aspects of CVE-2018-7713.
Vulnerability Description
The vulnerability exists in the validateInputImageSize function in modules/imgcodecs/src/loadsave.cpp in OpenCV 3.4.1, allowing attackers to exploit it for a denial of service attack.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: Not applicable
Exploitation Mechanism
The vulnerability can be exploited remotely by manipulating the condition (size.width <= (1<<20)) to trigger an assertion failure.
Mitigation and Prevention
Learn how to mitigate and prevent the CVE-2018-7713 vulnerability.
Immediate Steps to Take
- Update OpenCV to a patched version that addresses the vulnerability.
- Monitor security advisories for any new updates or patches related to OpenCV.
Long-Term Security Practices
- Regularly update software and libraries to the latest secure versions.
- Implement network security measures to prevent remote exploitation of vulnerabilities.
Patching and Updates
Ensure timely application of patches and updates to OpenCV to mitigate the CVE-2018-7713 vulnerability.