Overview
This report details a significant vulnerability identified in ImageMagick, a widely used open-source software for digital image manipulation. The vulnerability, registered as CVE-2025-53101, can potentially lead to system compromise or data leakage, affecting users of ImageMagick versions prior to 7.1.2-0 and 6.9.13-26.
Vulnerability Summary
CVE ID: CVE-2025-53101
Severity: High (CVSS: 7.4)
Attack Vector: Local
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise or data leakage
Affected Products
Product | Affected Versions
ImageMagick | Versions prior to 7.1.2-0 and 6.9.13-26
How the Exploit Works
The vulnerability resides in ImageMagick’s `magick mogrify` command. When multiple consecutive `%d` format specifiers are used in a filename template, it leads to internal pointer arithmetic generating an address below the beginning of the stack buffer. This results in a stack overflow through `vsnprintf()`.
Conceptual Example Code
# Example exploit command
magick mogrify -resize %d%d.jpgIn this conceptual example, the `%d%d.jpg` filename template includes multiple consecutive `%d` format specifiers. This command, when used with a vulnerable version of ImageMagick, would trigger the stack overflow vulnerability discussed here.
Recommendations for Mitigation
Users of ImageMagick are urged to update their software to the latest versions (7.1.2-0 or 6.9.13-26) to avoid this vulnerability. If immediate update is not possible, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation strategy. Always remember to follow best security practices and keep software up-to-date to prevent exploitation.
