There are 4 places in HistogramCompare() in MagickCore/histogram.c where an integer overflow is possible during simple math calculations. This occurs in the rgb values and count value for a color. The patch uses casts to ssize_t type for these calculations, instead of int. This flaw could impact application reliability in the event that ImageMagick processes a crafted input file. This flaw affects ImageMagick versions prior to 7.0.9-0.
| Software | From | Fixed in |
|---|---|---|
| imagemagick / imagemagick | - | 6.9.10-69 |
| imagemagick / imagemagick | 7.0.0-0 | 7.0.9-0 |
| debian / debian_linux | 9.0 | 9.0.x |