CVE-2018-11251 Explained : Impact and Mitigation
Discover the heap-based buffer over-read vulnerability in ImageMagick version 7.0.7-23 Q16 x86_64, potentially leading to denial of service attacks. Learn about the impact, affected systems, exploitation, and mitigation steps.
A heap-based buffer over-read vulnerability was found in ImageMagick version 7.0.7-23 Q16 x86_64, potentially leading to a denial of service attack.
Understanding CVE-2018-11251
What is CVE-2018-11251?
This vulnerability exists in the ReadSUNImage function within the sun.c file of ImageMagick version 7.0.7-23 Q16 x86_64. Exploiting it could result in an application crash when processing a manipulated SUN image file.
The Impact of CVE-2018-11251
The vulnerability could allow attackers to cause a denial of service by triggering an application crash during image file processing.
Technical Details of CVE-2018-11251
Vulnerability Description
In ImageMagick 7.0.7-23 Q16 x86_64, a heap-based buffer over-read occurs in the ReadSUNImage function in coders/sun.c, potentially leading to a denial of service via a crafted SUN image file.
Affected Systems and Versions
- Product: ImageMagick
- Version: 7.0.7-23 Q16 x86_64
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating a SUN image file, causing the application to crash during processing.
Mitigation and Prevention
Immediate Steps to Take
- Apply security updates provided by ImageMagick promptly.
- Avoid processing untrusted or manipulated image files.
Long-Term Security Practices
- Regularly update ImageMagick and other software to the latest versions.
- Implement proper input validation mechanisms to prevent buffer over-read vulnerabilities.
Patching and Updates
- ImageMagick has released security updates addressing this vulnerability. Ensure timely installation of these patches.