CVE-2019-14980 : What You Need to Know

A use after free vulnerability in the UnmapBlob function of ImageMagick versions 7.x prior to 7.0.8-42 and 6.x prior to 6.9.10-42 can lead to a denial of service attack by exploiting a specially-crafted file.

Understanding CVE-2019-14980

This CVE identifies a specific vulnerability in ImageMagick versions 7.x and 6.x that can be exploited to trigger a denial of service condition.

What is CVE-2019-14980?

ImageMagick versions 7.x before 7.0.8-42 and 6.x before 6.9.10-42 contain a use after free vulnerability in the UnmapBlob function. This flaw allows an attacker to cause a denial of service by sending a crafted file.

The Impact of CVE-2019-14980

Exploiting this vulnerability can result in a denial of service condition, potentially disrupting the normal operation of affected systems.

Technical Details of CVE-2019-14980

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The use after free vulnerability in the UnmapBlob function of ImageMagick versions 7.x and 6.x allows attackers to trigger a denial of service by sending a specially-crafted file.

Affected Systems and Versions

ImageMagick versions 7.x before 7.0.8-42
ImageMagick versions 6.x before 6.9.10-42

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a specially-crafted file to the UnmapBlob function, leading to a denial of service condition.

Mitigation and Prevention

Protecting systems from CVE-2019-14980 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update ImageMagick to versions 7.0.8-42 for 7.x and 6.9.10-42 for 6.x to mitigate the vulnerability.
Monitor for any unusual file activities that could indicate exploitation.

Long-Term Security Practices

Regularly update software and apply security patches promptly.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Ensure that ImageMagick is regularly updated to the latest versions to address security vulnerabilities.