Versions mentioned in the description apply to the upstream
Remediation section below for
Debian:9 relevant versions.
A flaw was found in ImageMagick in MagickCore/gem-private.h. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of values outside the range of type
unsigned char or division by zero. This would most likely lead to an impact to application availability, but could potentially cause other problems related to undefined behavior. This flaw affects ImageMagick versions prior to 7.0.9-0.
imagemagick to version 8:220.127.116.11+dfsg-11+deb9u11 or higher.