CVE-2020-27775 : What You Need to Know
Learn about CVE-2020-27775 affecting ImageMagick versions prior to 7.0.9-0, leading to undefined behavior and potential application availability issues. Find mitigation steps and prevention measures.
A flaw in ImageMagick could lead to undefined behavior, impacting application availability.
Understanding CVE-2020-27775
What is CVE-2020-27775?
ImageMagick in MagickCore/quantum.h is vulnerable to triggering undefined behavior due to crafted files, potentially affecting application availability.
The Impact of CVE-2020-27775
The vulnerability could result in values outside the range of type unsigned char, impacting application availability and potentially causing other issues related to undefined behavior.
Technical Details of CVE-2020-27775
Vulnerability Description
The flaw in ImageMagick versions prior to 7.0.9-0 allows an attacker to exploit the vulnerability by submitting a crafted file.
Affected Systems and Versions
- Vendor: n/a
- Product: ImageMagick
- Affected Version: ImageMagick 7.0.9-0
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 7.0.9-0 or later.
- Monitor for any unusual behavior on systems processing ImageMagick files.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions.
- Implement file type and content validation mechanisms to prevent the processing of malicious files.
Patching and Updates
Apply security updates provided by ImageMagick to patch the vulnerability.