| Name | CVE-2021-20243 |
| Description | A flaw was found in ImageMagick in MagickCore/resize.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. The highest threat from this vulnerability is to system availability. |
| 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-2672-1, DLA-3429-1, ELA-387-1 |
| Debian Bugs | 1013282 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| imagemagick (PTS) | jessie, jessie (lts) | 8:6.8.9.9-5+deb8u27 | fixed |
| stretch (security) | 8:6.9.7.4+dfsg-11+deb9u14 | fixed | |
| stretch (lts), stretch | 8:6.9.7.4+dfsg-11+deb9u20 | fixed | |
| buster, buster (lts) | 8:6.9.10.23+dfsg-2.1+deb10u9 | fixed | |
| buster (security) | 8:6.9.10.23+dfsg-2.1+deb10u7 | fixed | |
| bullseye | 8:6.9.11.60+dfsg-1.3+deb11u4 | fixed | |
| bullseye (security) | 8:6.9.11.60+dfsg-1.3+deb11u3 | fixed | |
| bookworm | 8:6.9.11.60+dfsg-1.6+deb12u2 | fixed | |
| bookworm (security) | 8:6.9.11.60+dfsg-1.6+deb12u1 | fixed | |
| trixie | 8:6.9.13.12+dfsg1-1 | fixed | |
| sid | 8:7.1.1.39+dfsg1-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| imagemagick | source | experimental | 8:6.9.12.20+dfsg1-1 | |||
| imagemagick | source | jessie | 8:6.8.9.9-5+deb8u23 | ELA-387-1 | ||
| imagemagick | source | stretch | 8:6.9.7.4+dfsg-11+deb9u13 | DLA-2672-1 | ||
| imagemagick | source | buster | 8:6.9.10.23+dfsg-2.1+deb10u5 | DLA-3429-1 | ||
| imagemagick | source | bullseye | 8:6.9.11.60+dfsg-1.3+deb11u2 | |||
| imagemagick | source | (unstable) | 8:6.9.11.60+dfsg-1.5 | 1013282 |
https://github.com/ImageMagick/ImageMagick/pull/3193
ImageMagick: https://github.com/ImageMagick/ImageMagick/commit/9751bd619872c8e58609fbed56c4827afa083b40
ImageMagick6: https://github.com/ImageMagick/ImageMagick6/commit/53cb91b3e7bf95d0e372cbc745e0055ac6054745 (resize.c hunk)
[jessie] - imagemagick <postponed> (Minor issue; can be fixed in next update)