CVE-2020-27759

Severity: low (CVSS 3.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-12-03 · updated 2026-06-17
Weakness: CWE-190

Description

In IntensityCompare() of /MagickCore/quantize.c, a double value was being casted to int and returned, which in some cases caused a value outside the range of type `int` to be returned. The flaw could be triggered by a crafted input file under certain conditions when processed by ImageMagick. Red Hat Product Security marked this as Low severity because although it could potentially lead to an impact to application availability, no specific impact was shown in this case. This flaw affects ImageMagick versions prior to 7.0.8-68.

Affected products

Debian Linux: 9.0
ImageMagick: before 6.9.10-68; from 7.0.0-0 before 7.0.8-68 — fixed in 6.9.10-68, 7.0.8-68

How to fix

Upgrade to a fixed version: ImageMagick 6.9.10-68, 7.0.8-68. Check the vendor advisory for mitigations.

References

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