ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-27 and 7.1.2-1, the magnified size calculations in ReadOneMNGIMage (in coders/png.c) are unsafe and can overflow, leading to memory corruption. This issue has been patched in versions 6.9.13-27 and 7.1.2-1.

Affected: NuGet: Magick.NET-Q8-x86, NuGet: Magick.NET-Q8-x64, NuGet: Magick.NET-Q8-arm64, NuGet: Magick.NET-Q8-OpenMP-x64, NuGet: Magick.NET-Q8-OpenMP-arm64, NuGet: Magick.NET-Q8-AnyCPU, NuGet: Magick.NET-Q16-x86, NuGet: Magick.NET-Q16-x64, NuGet: Magick.NET-Q16-arm64, NuGet: Magick.NET-Q16-OpenMP-x64 and 8 more

## **Vulnerability Details**

The magnified size calculations in `ReadOneMNGIMage` (in `coders/png.c`) are unsafe and can overflow, leading to memory corruption.

The source snippet below is heavily abbreviated due to the size of the function, but hopefully the important points are captured.

```c static Image *ReadOneMNGImage(MngReadInfo* mng_info, const ImageInfo *image_info,ExceptionInfo *exception) {

// Lots of stuff, this is effectively a state machine for the MNG rendering commands, // skip to the point where we start processing the "MAGN" command.

if (memcmp(type,mng_MAGN,4) == 0) { png_uint_16 magn_first, magn_last, magn_mb, magn_ml, magn_mr, magn_mt, magn_mx, magn_my, magn_methx, magn_methy;

// Details unimportant, but each of the `magn_xxx` variables is read from the file.

if (magn_first == 0 || magn_last == 0) { /* Save the magnification factors for object 0 */ mng_info->magn_mb=magn_mb; mng_info->magn_ml=magn_ml; mng_info->magn_mr=magn_mr; mng_info->magn_mt=magn_mt; mng_info->magn_mx=magn_mx; mng_info->magn_my=magn_my; mng_info->magn_methx=magn_methx; mng_info->magn_methy=magn_methy; } }

// Details…

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. Prior to version 7.1.2-1, ImageMagick is vulnerable to heap-buffer overflow read around the handling of images with separate alpha channels when performing image magnification in ReadOneMNGIMage. This can likely be used to leak subsequent memory contents into the output image. This issue has been patched in version 7.1.2-1.(CVE-2025-55004)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-1, when preparing to transform from Log to sRGB colorspaces, the logmap construction fails to handle cases where the reference-black or reference-white value is larger than 1024. This leads to corrupting memory beyond the end of the allocated logmap buffer. This issue has been patched in version 7.1.2-1.(CVE-2025-55005)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-27 and 7.1.2-1, the magnified size calculations in ReadOneMNGIMage (i…

ImageMagick-7.1.2.1-1.1 on GA media

imagemagick: ImageMagick: integer overflows in MNG magnification

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. Prior to versions 6.9.13-27 and 7.1.2-1, the magnified size calculations in ReadOneMNGIMage (in coders/png.c) are unsafe and can overflow, leading to memory corruption. This issue has been patched in versions 6.9.13-27 and 7.1.2-1.

Ein Angreifer kann mehrere Schwachstellen in ImageMagick ausnutzen, um Informationen offenzulegen, einen Denial-of-Service-Zustand herbeizuführen, beliebigen Code auszuführen oder andere nicht näher spezifizierte Angriffe durchzuführen.