CVE-2018-5268 : Security Advisory and Response
Learn about CVE-2018-5268 affecting OpenCV version 3.3.1. Discover the impact, technical details, affected systems, exploitation method, and mitigation steps to secure your systems.
OpenCV version 3.3.1 is vulnerable to a heap-based buffer overflow in the cv::Jpeg2KDecoder::readComponent8u function, triggered by a crafted image file.
Understanding CVE-2018-5268
What is CVE-2018-5268?
In OpenCV version 3.3.1, a specific function within the image processing module is susceptible to a heap-based buffer overflow when processing a manipulated image file.
The Impact of CVE-2018-5268
This vulnerability could be exploited by an attacker to execute arbitrary code or cause a denial of service (DoS) condition on systems running the affected OpenCV version.
Technical Details of CVE-2018-5268
Vulnerability Description
The issue arises in the cv::Jpeg2KDecoder::readComponent8u function in modules/imgcodecs/src/grfmt_jpeg2000.cpp due to improper handling of image files, leading to a heap-based buffer overflow.
Affected Systems and Versions
- OpenCV version 3.3.1
Exploitation Mechanism
- Crafting a malicious image file to trigger the buffer overflow
Mitigation and Prevention
Immediate Steps to Take
- Update OpenCV to a non-vulnerable version
- Avoid opening image files from untrusted sources
Long-Term Security Practices
- Regularly update software and libraries
- Implement input validation mechanisms to prevent buffer overflows
Patching and Updates
- Apply security patches provided by OpenCV to address the vulnerability