CVE-2018-18025 : What You Need to Know

ImageMagick 7.0.8-13 Q16 has a vulnerability that may lead to a denial of service attack when a maliciously crafted SVG image file is used. This relates to a heap-based buffer over-read issue.

Understanding CVE-2018-18025

This CVE involves a specific vulnerability in ImageMagick software that can be exploited to cause a denial of service attack.

What is CVE-2018-18025?

CVE-2018-18025 is a heap-based buffer over-read vulnerability in the EncodeImage function of coders/pict.c in ImageMagick 7.0.8-13 Q16. Attackers can exploit this issue using a specially crafted SVG image file to trigger a denial of service condition.

The Impact of CVE-2018-18025

The vulnerability can be exploited by attackers to cause a denial of service on systems running the affected ImageMagick version. This could potentially disrupt services and operations relying on ImageMagick functionality.

Technical Details of CVE-2018-18025

This section provides more in-depth technical details about the CVE.

Vulnerability Description

The vulnerability in ImageMagick 7.0.8-13 Q16 allows attackers to perform a heap-based buffer over-read via the EncodeImage function in coders/pict.c when processing a malicious SVG image file.

Affected Systems and Versions

Product: ImageMagick
Vendor: N/A
Version: 7.0.8-13 Q16

Exploitation Mechanism

Attackers can exploit this vulnerability by providing a specially crafted SVG image file to the affected ImageMagick software, triggering the heap-based buffer over-read and leading to a denial of service.

Mitigation and Prevention

To address CVE-2018-18025, users and administrators should take immediate steps and implement long-term security practices.

Immediate Steps to Take

Update ImageMagick to a non-vulnerable version if available.
Avoid processing SVG image files from untrusted sources.
Monitor for any unusual system behavior that could indicate a denial of service attack.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Implement network and system monitoring to detect and respond to potential security incidents.

Patching and Updates

Check for security advisories from ImageMagick and apply patches as soon as they are released.