ImageMagick is free and open-source software used for editing and manipulating digital images. In versions prior to 7.1.2-0 and 6.9.13-26, in ImageMagick's `magick mogrify` command, specifying multiple consecutive `%d` format specifiers in a filename template causes internal pointer arithmetic to generate an address below the beginning of the stack buffer, resulting in a stack overflow through `vsnprintf()`. Versions 7.1.2-0 and 6.9.13-26 fix the issue.

Affected: NuGet: Magick.NET-Q16-AnyCPU, NuGet: Magick.NET-Q16-HDRI-AnyCPU, NuGet: Magick.NET-Q16-HDRI-OpenMP-arm64, NuGet: Magick.NET-Q16-HDRI-OpenMP-x64, NuGet: Magick.NET-Q16-HDRI-arm64, NuGet: Magick.NET-Q16-HDRI-x64, NuGet: Magick.NET-Q16-HDRI-x86, NuGet: Magick.NET-Q16-OpenMP-arm64, NuGet: Magick.NET-Q16-OpenMP-x64, NuGet: Magick.NET-Q16-arm64 and 8 more

Hi, we have found a stack buffer overflow and would like to report this issue. Could you confirm if this qualifies as a security vulnerability? I am happy to provide any additional information needed.

## Summary

In ImageMagick's `magick mogrify` command, specifying multiple consecutive `%d` format specifiers in a filename template causes internal pointer arithmetic to generate an address below the beginning of the stack buffer, resulting in a stack overflow through `vsnprintf()`.

### Additional information

Upon further investigation, we found that the same issue occurs not only with mogrify but also with the following subcommands: compare, composite, conjure, convert, identify, mogrify, and montage.

Furthermore, we confirmed that this vulnerability has the potential to lead to RCE. RCE is possible when ASLR is disabled and there is a suitable one_gadget in libc, provided that options and filenames can be controlled.

## Details

- **Vulnerability Type:** CWE-124: Buffer Underwrite - **Affected Component:** MagickCore/image.c - Format processing within InterpretImageFilename() - **Affected Version:** ImageMagick 7.1.1-47 (as of commit 82572afc, June 2025) - **CWE-124: Buffer Underwrite:** A vulnerability where writing occurs to memory addresses before the beginning of a buffer. This is caused by a design flaw in fixed offset correction, resulting in negative pointer arithmetic during consecutive format specifier processing.

## Reproduction

### Tested Environment

- **…

Affected: openEuler:22.03-LTS-SP3: ImageMagick

Use ImageMagick to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, GIF, HEIC, TIFF, DPX, EXR, WebP, Postscript, PDF, and SVG. Use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves. Security Fix(es):

ImageMagick is free and open-source software used for editing and manipulating digital images. Versions prior to 7.1.2-0 and 6.9.13-26 have a heap buffer overflow in the `InterpretImageFilename` function. The issue stems from an off-by-one error that causes out-of-bounds memory access when processing format strings containing consecutive percent signs (`%%`). Versions 7.1.2-0 and 6.9.13-26 fix the issue.(CVE-2025-53014)

A vulnerability, which was classified as problematic, was found in ImageMagick up to 7.1.1 (Image Processing Software).CWE is classifying the issue as CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.This is going to have an impact on availability.Upgrading to version 7.1.2-0 eliminates this vulnerability.(CVE-2025-53015)

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions prior to 7.1.2-0 and 6.9.13-26, in ImageMagick's `magick stream` command, specifying multiple consecutive `%d` format specifiers in a…

ImageMagick-7.1.2.0-1.1 on GA media

Security update for ImageMagick

Affected: Ubuntu:Pro:14.04:LTS: imagemagick, Ubuntu:Pro:16.04:LTS: imagemagick, Ubuntu:Pro:18.04:LTS: imagemagick, Ubuntu:Pro:20.04:LTS: imagemagick, Ubuntu:Pro:22.04:LTS: imagemagick, Ubuntu:Pro:24.04:LTS: imagemagick

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions prior to 7.1.2-0 and 6.9.13-26, in ImageMagick's `magick mogrify` command, specifying multiple consecutive `%d` format specifiers in a filename template causes internal pointer arithmetic to generate an address below the beginning of the stack buffer, resulting in a stack overflow through `vsnprintf()`. Versions 7.1.2-0 and 6.9.13-26 fix the issue.

Ein entfernter anonymer Angreifer kann mehrere Schwachstellen in ImageMagick ausnutzen, um beliebigen Code auszuführen, einen Denial of Service-Zustand zu erzeugen oder andere nicht spezifizierte Angriffe durchzuführen.