CVE-2017-18219 : Exploit Details and Defense Strategies

GraphicsMagick 1.3.26 has a vulnerability related to allocation failure in the function ReadOnePNGImage, allowing attackers to trigger a denial of service attack.

Understanding CVE-2017-18219

GraphicsMagick 1.3.26 vulnerability impacting the function ReadOnePNGImage in coders/png.c.

What is CVE-2017-18219?

An allocation failure vulnerability in GraphicsMagick 1.3.26 allows attackers to exploit a denial of service by using a specially crafted file.

The Impact of CVE-2017-18219

Attackers can exploit the vulnerability to trigger a denial of service attack.

Technical Details of CVE-2017-18219

GraphicsMagick 1.3.26 vulnerability details.

Vulnerability Description

The vulnerability is located in the function ReadOnePNGImage in coders/png.c.

Affected Systems and Versions

Product: GraphicsMagick 1.3.26
Vendor: N/A
Version: N/A

Exploitation Mechanism

Attackers can exploit the vulnerability by using a specially crafted file to trigger an attempt to allocate a large png_pixels array.

Mitigation and Prevention

Steps to mitigate and prevent CVE-2017-18219.

Immediate Steps to Take

Update GraphicsMagick to the latest version.
Avoid opening files from untrusted sources.

Long-Term Security Practices

Regularly update software and apply security patches.
Implement file input validation to prevent malicious file execution.

Patching and Updates

Apply the security updates provided by GraphicsMagick to address the vulnerability.