CVE-2020-27765 : What You Need to Know
Learn about CVE-2020-27765 affecting ImageMagick versions prior to 7.0.9-0, leading to math division by zero vulnerability and potential application availability impact. Find mitigation steps here.
A flaw in ImageMagick could lead to math division by zero, impacting application availability.
Understanding CVE-2020-27765
What is CVE-2020-27765?
ImageMagick in MagickCore/segment.c is vulnerable to triggering undefined behavior due to math division by zero when processing crafted files.
The Impact of CVE-2020-27765
This vulnerability could affect application availability and potentially cause other issues related to undefined behavior.
Technical Details of CVE-2020-27765
Vulnerability Description
The flaw in ImageMagick versions prior to 7.0.9-0 allows an attacker to exploit math division by zero.
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 crafted file for processing by ImageMagick.
Mitigation and Prevention
Immediate Steps to Take
- Update ImageMagick to version 7.0.9-0 or later.
- Monitor for any unusual behavior in applications.
Long-Term Security Practices
- Regularly update software and libraries to patch known vulnerabilities.
- Implement file input validation to prevent malicious inputs.
Patching and Updates
Apply security updates provided by ImageMagick to address the vulnerability.