CVE-2019-7398 : Security Advisory and Response

A memory leak vulnerability was identified in the WriteDIBImage function within the dib.c file of ImageMagick prior to version 7.0.8-25.

Understanding CVE-2019-7398

What is CVE-2019-7398?

In ImageMagick before version 7.0.8-25, a memory leak exists in the WriteDIBImage function in coders/dib.c.

The Impact of CVE-2019-7398

This vulnerability could allow an attacker to cause a denial of service (DoS) condition by consuming excessive memory resources on the affected system.

Technical Details of CVE-2019-7398

Vulnerability Description

A memory leak exists in the WriteDIBImage function within the dib.c file of ImageMagick prior to version 7.0.8-25.

Affected Systems and Versions

Product: ImageMagick
Vendor: N/A
Versions affected: All versions prior to 7.0.8-25

Exploitation Mechanism

The vulnerability can be exploited by an attacker to craft a malicious image file that, when processed by ImageMagick, triggers the memory leak.

Mitigation and Prevention

Immediate Steps to Take

Update ImageMagick to version 7.0.8-25 or later to mitigate the memory leak vulnerability.
Monitor system resources for any unusual memory consumption that could indicate a potential exploit.

Long-Term Security Practices

Regularly update software and apply patches to address known vulnerabilities.
Implement network and host-based intrusion detection/prevention systems to detect and block malicious activities.

Patching and Updates

Ensure that ImageMagick is kept up to date with the latest security patches to prevent exploitation of this memory leak vulnerability.