CVE-2020-21427 : Vulnerability Insights and Analysis
Learn about CVE-2020-21427, a Buffer Overflow vulnerability in FreeImage 3.18.0 that allows remote attackers to execute arbitrary code via a crafted image file. Find mitigation steps and prevention measures here.
A Buffer Overflow vulnerability in FreeImage 3.18.0 allows remote attackers to execute arbitrary code via a crafted image file.
Understanding CVE-2020-21427
What is CVE-2020-21427?
The CVE-2020-21427 vulnerability is a Buffer Overflow issue found in the LoadPixelDataRLE8 function in PluginBMP.cpp within FreeImage 3.18.0.
The Impact of CVE-2020-21427
This vulnerability enables remote attackers to run arbitrary code and potentially cause other impacts by exploiting a specially crafted image file.
Technical Details of CVE-2020-21427
Vulnerability Description
The Buffer Overflow vulnerability in FreeImage 3.18.0 arises in the LoadPixelDataRLE8 function in PluginBMP.cpp, allowing attackers to execute arbitrary code.
Affected Systems and Versions
- Vendor: n/a
- Product: n/a
- Versions: All versions are affected
Exploitation Mechanism
The vulnerability can be exploited remotely by sending a maliciously crafted image file to the target system, triggering the Buffer Overflow and allowing the execution of arbitrary code.
Mitigation and Prevention
Immediate Steps to Take
- Update FreeImage to the latest version to patch the vulnerability
- Avoid opening image files from untrusted or unknown sources
Long-Term Security Practices
- Regularly update software and libraries to address security vulnerabilities
- Implement network security measures to prevent remote exploitation
Patching and Updates
It is crucial to apply the latest patches and updates provided by FreeImage to mitigate the CVE-2020-21427 vulnerability.