CVE-2020-27766 Explained : Impact and Mitigation

A flaw in ImageMagick could lead to undefined behavior and impact application availability.

Understanding CVE-2020-27766

What is CVE-2020-27766?

ImageMagick in MagickCore/statistic.c is vulnerable to triggering undefined behavior due to crafted files, potentially affecting application availability.

The Impact of CVE-2020-27766

The vulnerability could result in values outside the range of type

unsigned long

, impacting application availability and potentially causing other issues related to undefined behavior.

Technical Details of CVE-2020-27766

Vulnerability Description

The flaw in ImageMagick versions prior to 7.0.8-69 allows an attacker to exploit the vulnerability by submitting a crafted file.

Affected Systems and Versions

Vendor: n/a
Product: ImageMagick
Affected Version: ImageMagick 7.0.8-69

Exploitation Mechanism

The vulnerability can be exploited by submitting a specially crafted file to ImageMagick.

Mitigation and Prevention

Immediate Steps to Take

Update ImageMagick to version 7.0.8-69 or later.
Monitor vendor security advisories for patches.

Long-Term Security Practices

Regularly update software to the latest versions.
Implement file input validation mechanisms.

Patching and Updates

Apply patches provided by ImageMagick to address the vulnerability.