CVE-2019-7397 : Vulnerability Insights and Analysis

ImageMagick and GraphicsMagick versions prior to 7.0.8-25 and 1.3.31, respectively, are affected by memory leaks in the WritePDFImage function.

Understanding CVE-2019-7397

What is CVE-2019-7397?

There are memory leaks present in the WritePDFImage function in the coders/pdf.c file of ImageMagick versions prior to 7.0.8-25 and GraphicsMagick versions up to 1.3.31.

The Impact of CVE-2019-7397

Memory leaks in the affected function can lead to resource exhaustion, potentially causing denial of service or other security vulnerabilities.

Technical Details of CVE-2019-7397

Vulnerability Description

Several memory leaks exist in WritePDFImage in coders/pdf.c of ImageMagick before 7.0.8-25 and GraphicsMagick through 1.3.31.

Affected Systems and Versions

ImageMagick versions prior to 7.0.8-25
GraphicsMagick versions up to 1.3.31

Exploitation Mechanism

The vulnerability can be exploited by a remote attacker to trigger memory leaks, leading to resource exhaustion or potential security risks.

Mitigation and Prevention

Immediate Steps to Take

Update ImageMagick to version 7.0.8-25 or later.
Update GraphicsMagick to version 1.3.32 or later.
Monitor system resources for unusual consumption.

Long-Term Security Practices

Regularly update software and libraries to patch known vulnerabilities.
Implement proper input validation and sanitization to prevent memory-related issues.

Patching and Updates

Apply patches provided by ImageMagick and GraphicsMagick to address the memory leak vulnerabilities.