| Name | CVE-2020-25666 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more) |
| References | DLA-2602-1, DLA-3357-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| imagemagick (PTS) | buster | 8:6.9.10.23+dfsg-2.1+deb10u1 | vulnerable |
| buster (security) | 8:6.9.10.23+dfsg-2.1+deb10u5 | fixed | |
| bullseye (security), bullseye | 8:6.9.11.60+dfsg-1.3+deb11u1 | fixed | |
| bookworm, sid | 8:6.9.11.60+dfsg-1.6 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| imagemagick | source | stretch | 8:6.9.7.4+dfsg-11+deb9u12 | DLA-2602-1 | ||
| imagemagick | source | buster | 8:6.9.10.23+dfsg-2.1+deb10u2 | DLA-3357-1 | ||
| imagemagick | source | (unstable) | 8:6.9.11.24+dfsg-1 |
https://github.com/ImageMagick/ImageMagick/issues/1750
ImageMagick: https://github.com/ImageMagick/ImageMagick/commit/94691f00839dbdf43edb1508af945ab19b388573
ImageMagick6: https://github.com/ImageMagick/ImageMagick6/commit/91ae12c57f3b9b23f2072462c27a8378b59f395e
ImageMagick6: https://github.com/ImageMagick/ImageMagick6/commit/245d884e1868ff9b932adad5fcacf9e3e1eb4c7f