CVE-2017-11140 : What You Need to Know

GraphicsMagick version 1.3.26 is vulnerable to a denial of service attack due to a flaw in the ReadJPEGImage function.

Understanding CVE-2017-11140

Remote attackers can exploit this vulnerability to trigger excessive resource consumption, leading to a denial of service condition.

What is CVE-2017-11140?

The vulnerability in GraphicsMagick version 1.3.26 allows attackers to create a specially crafted JPEG file to consume resources excessively, causing a denial of service.

The Impact of CVE-2017-11140

The exploitation of this vulnerability can result in a denial of service condition due to the high consumption of resources by triggering the creation of a pixel cache before a scanline is successfully read.

Technical Details of CVE-2017-11140

GraphicsMagick version 1.3.26 is susceptible to the following:

Vulnerability Description

The ReadJPEGImage function in coders/jpeg.c creates a pixel cache before successfully reading a scanline, enabling remote attackers to cause a denial of service through crafted JPEG files.

Affected Systems and Versions

Product: GraphicsMagick
Vendor: N/A
Version: 1.3.26

Exploitation Mechanism

Attackers can exploit this vulnerability by creating a maliciously formatted JPEG file to trigger the creation of a pixel cache before a scanline is read, leading to resource exhaustion.

Mitigation and Prevention

To address CVE-2017-11140, consider the following steps:

Immediate Steps to Take

Apply patches provided by the vendor promptly.
Implement network security measures to prevent unauthorized access.

Long-Term Security Practices

Regularly update software and systems to mitigate known vulnerabilities.
Conduct security assessments and penetration testing to identify and address weaknesses.

Patching and Updates

Stay informed about security advisories and updates from GraphicsMagick.