CVE-2019-13454 : Exploit Details and Defense Strategies

ImageMagick 7.0.8-54 Q16 allows Division by Zero in RemoveDuplicateLayers in MagickCore/layer.c.

Understanding CVE-2019-13454

In the file layer.c of MagickCore, Division by Zero can occur during the execution of the RemoveDuplicateLayers function in ImageMagick version 7.0.8-54 Q16.

What is CVE-2019-13454?

This CVE refers to a vulnerability in ImageMagick version 7.0.8-54 Q16 that allows Division by Zero in the RemoveDuplicateLayers function.

The Impact of CVE-2019-13454

The vulnerability could potentially lead to a denial of service (DoS) attack by causing the application to crash or become unresponsive.

Technical Details of CVE-2019-13454

ImageMagick 7.0.8-54 Q16 is affected by a Division by Zero vulnerability in the RemoveDuplicateLayers function.

Vulnerability Description

The issue occurs in the file layer.c of MagickCore, where a Division by Zero can be triggered during the execution of RemoveDuplicateLayers.

Affected Systems and Versions

Product: ImageMagick
Vendor: N/A
Version: 7.0.8-54 Q16

Exploitation Mechanism

An attacker could exploit this vulnerability by crafting a malicious image file that triggers the Division by Zero condition when processed by ImageMagick.

Mitigation and Prevention

To address CVE-2019-13454, follow these mitigation steps:

Immediate Steps to Take

Update ImageMagick to a patched version that addresses the Division by Zero vulnerability.
Avoid processing untrusted or unknown image files with ImageMagick.

Long-Term Security Practices

Regularly update and patch software to prevent known vulnerabilities.
Implement proper input validation and error handling mechanisms in image processing applications.

Patching and Updates

Ensure that ImageMagick is regularly updated to the latest version to mitigate security risks.