CVE-2020-27753: ImageMagick

Medium severity, CVSS 5.5. EPSS: 0.9% chance of exploitation in the next 30 days.

There are several memory leaks in the MIFF coder in /coders/miff.c due to improper image depth values, which can be triggered by a specially crafted input file. These leaks could potentially lead to an impact to application availability or cause a denial of service. It was originally reported that the issues were in `AcquireMagickMemory()` because that is where LeakSanitizer detected the leaks, but the patch resolves issues in the MIFF coder, which incorrectly handles data being passed to `AcquireMagickMemory()`. This flaw affects ImageMagick versions prior to 7.0.9-0.

Affected products

• ImageMagick ImageMagick: before 6.9.10-69 (fixed in 6.9.10-69); from 7.0.0-0, before 7.0.9-0 (fixed in 7.0.9-0)

Published 2020-12-08. Last modified 2026-06-17.