Vulnerability · Published Dec 3, 2020 · Assigned by redhat
CVE-2020-27760
Medium 5.5
In plain English
A medium-severity security flaw in ImageMagick. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
In `GammaImage()` of /MagickCore/enhance.c, depending on the `gamma` value, it's possible to trigger a divide-by-zero condition when a crafted input file is processed by ImageMagick. This could lead to an impact to application availability. The patch uses the `PerceptibleReciprocal()` to prevent the divide-by-zero from occurring. This flaw affects ImageMagick versions prior to ImageMagick 7.0.8-68.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | imagemagick | 8:6.9.11.24+dfsg-1 | DEBIAN-CVE-2020-27760 |
| Debian:13 | imagemagick | 8:6.9.11.24+dfsg-1 | DEBIAN-CVE-2020-27760 |
| Debian:14 | imagemagick | 8:6.9.11.24+dfsg-1 | DEBIAN-CVE-2020-27760 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | ImageMagick | ImageMagick 7.0.8-68 |
Weakness: CWE-369