CVE-2020-27753

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.

Bugs

• <https://github.com/ImageMagick/ImageMagick/issues/1757&gt;