CVE-2017-11535 : What You Need to Know

A heap-based buffer over-read vulnerability was identified in ImageMagick 7.0.6-1, potentially triggered by processing a specially crafted file with the convert command.

Understanding CVE-2017-11535

This CVE entry highlights a specific security issue within ImageMagick version 7.0.6-1.

What is CVE-2017-11535?

The vulnerability in the WritePSImage() function in coders/ps.c of ImageMagick 7.0.6-1 can result in a heap-based buffer over-read when handling specific file inputs using the convert command.

The Impact of CVE-2017-11535

Exploitation of this vulnerability could allow an attacker to execute arbitrary code or cause a denial of service by crashing the application.

Technical Details of CVE-2017-11535

This section delves into the technical aspects of the CVE.

Vulnerability Description

The issue arises due to improper handling of certain files by the WritePSImage() function in ImageMagick 7.0.6-1, leading to a heap-based buffer over-read.

Affected Systems and Versions

Product: ImageMagick
Vendor: N/A
Version: 7.0.6-1

Exploitation Mechanism

The vulnerability can be exploited by crafting a malicious file and processing it with the convert command in ImageMagick 7.0.6-1.

Mitigation and Prevention

Protecting systems from CVE-2017-11535 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update ImageMagick to a patched version that addresses the vulnerability.
Avoid processing untrusted or unknown files with the convert command.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Implement file input validation mechanisms to prevent the processing of malicious files.

Patching and Updates

Ensure that ImageMagick is regularly updated to the latest version to mitigate the risk of exploitation.