| Name | CVE-2020-27754 |
| Description | In IntensityCompare() of /magick/quantize.c, there are calls to PixelPacketIntensity() which could return overflowed values to the caller when ImageMagick processes a crafted input file. To mitigate this, the patch introduces and uses the ConstrainPixelIntensity() function, which forces the pixel intensities to be within the proper bounds in the event of an overflow. This flaw affects ImageMagick versions prior to 6.9.10-69 and 7.0.8-69. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, 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+deb10u7 | fixed | |
| bullseye | 8:6.9.11.60+dfsg-1.3+deb11u2 | fixed | |
| bullseye (security) | 8:6.9.11.60+dfsg-1.3+deb11u3 | fixed | |
| bookworm | 8:6.9.11.60+dfsg-1.6 | fixed | |
| bookworm (security) | 8:6.9.11.60+dfsg-1.6+deb12u1 | fixed | |
| trixie | 8:6.9.12.98+dfsg1-5 | fixed | |
| sid | 8:6.9.12.98+dfsg1-5.2 | 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/1754
ImageMagick: https://github.com/ImageMagick/ImageMagick6/commit/d5df600d43c8706df513a3273d09aee6f54a9233
ImageMagick6: https://github.com/ImageMagick/ImageMagick6/commit/d5df600d43c8706df513a3273d09aee6f54a9233