CVE-2019-13655 : What You Need to Know

Imgix through 2019-06-19 allows remote attackers to cause a denial of service (resource consumption) by manipulating a small JPEG file to specify dimensions of 64250x64250 pixels. This manipulation is mishandled during an attempt to load the 'whole image' into memory.

Understanding CVE-2019-13655

By exploiting a vulnerability in Imgix until 2019-06-19, malicious actors can trigger a denial of service attack by manipulating a compact JPEG file to indicate dimensions of 64250x64250 pixels. This manipulation is mishandled during the image loading process, leading to excessive resource consumption.

What is CVE-2019-13655?

CVE-2019-13655 is a vulnerability in Imgix that allows remote attackers to conduct a denial of service attack by manipulating a small JPEG file to specify unusually large dimensions, causing excessive resource consumption.

The Impact of CVE-2019-13655

The vulnerability can be exploited by malicious actors to trigger a denial of service attack, leading to excessive resource consumption and potential service disruption.

Technical Details of CVE-2019-13655

Vulnerability Description

Imgix through 2019-06-19 is susceptible to a denial of service attack caused by mishandling compact JPEG files with specified large dimensions.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Versions affected: n/a

Exploitation Mechanism

Attackers manipulate a small JPEG file to indicate dimensions of 64250x64250 pixels, causing resource consumption issues during image loading.

Mitigation and Prevention

Immediate Steps to Take

Implement input validation to prevent the processing of unusually large image dimensions.
Regularly monitor resource consumption for abnormal patterns.

Long-Term Security Practices

Keep software and libraries up to date to patch known vulnerabilities.

Patching and Updates

Apply patches or updates provided by Imgix to address the vulnerability.