ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-28 and 7.1.2-2 for ImageMagick's 32-bit build, a 32-bit integer overflow in the BMP encoder’s scanline-stride computation collapses bytes_per_line (stride) to a tiny value while the per-row writer still emits 3 × width bytes for 24-bpp images. The row base pointer advances using the (overflowed) stride, so the first row immediately writes past its slot and into adjacent heap memory with attacker-controlled bytes. This is a classic, powerful primitive for heap corruption in common auto-convert pipelines. This issue has been patched in versions 6.9.13-28 and 7.1.2-2.
| Software | From | Fixed in |
|---|---|---|
magick.net-q16-anycpu
|
- | 14.8.1 |
magick.net-q16-hdri-anycpu
|
- | 14.8.1 |
Magick.NET-Q16-HDRI-x86
|
- | 14.8.1 |
Magick.NET-Q16-x86
|
- | 14.8.1 |
magick.net-q8-anycpu
|
- | 14.8.1 |
Magick.NET-Q8-x86
|
- | 14.8.1 |
| imagemagick / imagemagick | - | 6.9.13-28 |
| imagemagick / imagemagick | 7.0.0-0 | 7.1.2-2 |