CVE-2019-11472 : Vulnerability Insights and Analysis

ImageMagick 7.0.8-41 Q16 allows a denial-of-service attack via a crafted XWD image file. Learn about the impact, technical details, and mitigation steps.

Understanding CVE-2019-11472

Crafting an XWD image file with a header that does not indicate LSB first or MSB first can lead to a denial-of-service (divide-by-zero error) in ImageMagick 7.0.8-41 Q16, specifically in the XWD image parsing component's coders/xwd.c, allowing attackers to exploit this vulnerability.

What is CVE-2019-11472?

Denial-of-service vulnerability in ImageMagick 7.0.8-41 Q16
Triggered by crafting an XWD image file with a misleading header
Exploitable by attackers to cause a divide-by-zero error

The Impact of CVE-2019-11472

Attackers can exploit the vulnerability to launch denial-of-service attacks
Specifically affects the XWD image parsing component of ImageMagick

Technical Details of CVE-2019-11472

Crafting an XWD image file with a header that does not indicate LSB first or MSB first can lead to a denial-of-service (divide-by-zero error) in ImageMagick 7.0.8-41 Q16.

Vulnerability Description

Vulnerability in ReadXWDImage in coders/xwd.c
Allows attackers to cause a denial-of-service by crafting a misleading XWD image file

Affected Systems and Versions

ImageMagick 7.0.8-41 Q16

Exploitation Mechanism

Crafting an XWD image file with a misleading header
Header does not indicate LSB first or MSB first

Mitigation and Prevention

Immediate Steps to Take

Update ImageMagick to a patched version
Avoid opening XWD image files from untrusted sources Long-Term Security Practices
Regularly update software and apply security patches
Implement proper input validation to prevent malformed image files
Monitor security advisories for ImageMagick
Educate users on safe handling of image files
Consider using alternative image processing libraries

Patching and Updates

Update ImageMagick to the latest patched version to mitigate the vulnerability