CVE-2017-11753 : Security Advisory and Response

A potential security vulnerability has been identified in the GetImageDepth function within the attribute.c module of ImageMagick version 7.0.6-4, which could lead to a denial of service condition through a heap-based buffer over-read when processing specially crafted Flexible Image Transport System (FITS) files.

Understanding CVE-2017-11753

This CVE-2017-11753 entry highlights a vulnerability in ImageMagick version 7.0.6-4 that could be exploited to cause a denial of service.

What is CVE-2017-11753?

The vulnerability in the GetImageDepth function of ImageMagick version 7.0.6-4 allows remote attackers to trigger a denial of service by exploiting a heap-based buffer over-read using malicious FITS files.

The Impact of CVE-2017-11753

Exploitation of this vulnerability could result in a denial of service condition, potentially disrupting the normal operation of the affected system.

Technical Details of CVE-2017-11753

This section delves into the technical aspects of the CVE-2017-11753 vulnerability.

Vulnerability Description

The GetImageDepth function in MagickCore/attribute.c in ImageMagick 7.0.6-4 might allow remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted FITS file.

Affected Systems and Versions

Affected Version: ImageMagick 7.0.6-4
Systems running ImageMagick version 7.0.6-4 are vulnerable to this exploit.

Exploitation Mechanism

The vulnerability is triggered by processing specifically crafted FITS files, leading to a heap-based buffer over-read and subsequent denial of service.

Mitigation and Prevention

Protecting systems from CVE-2017-11753 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update ImageMagick to a non-vulnerable version or apply patches provided by the vendor.
Avoid opening FITS files from untrusted sources.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Implement network security measures to prevent unauthorized access to vulnerable systems.

Patching and Updates

Stay informed about security updates for ImageMagick and promptly apply any patches released by the vendor.