CLSA-2025-1758195721 ImageMagick: Fix of 4 CVEs

CVE-2025-55154: fix integer overflows in MNG magnification - CVE-2025-55212: fix division by zero in ThumbnailImage - CVE-2025-57803: fix 32-bit integer overflow when writing BMP scanline stride - CVE-2025-55298: fix format string bug leading to RCE or heap overflow...

imagemagick: integer overflows in MNG magnification

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...

imagemagick: heap-buffer overflow read in MNG magnification with alpha

Vulnerability Details When performing image magnification in ReadOneMNGIMage in coders/png.c, there is an issue around the handling of images with separate alpha channels. When loading an image with a color type that implies a separate alpha channel ie. jngcolortype = 12, we will load the alpha...

CVE-2025-55004

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 c...

CVE-2025-55004 ImageMagick: heap-buffer overflow read in MNG magnification with alpha

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 c...