A graphicsmagick security update has been released for Debian GNU/Linux 8 LTS to address a vulnerability that results in a heap buffer overwrite when magnifying MNG images.

DLA 2236-1: graphicsmagick security update

Package : graphicsmagick
Version : 1.3.20-3+deb8u11
CVE ID : CVE-2020-12672
Debian Bug : 960000

A vulnerability was discovered in graphicsmagick, a collection of image
processing tools, that results in a heap buffer overwrite when
magnifying MNG images.

For Debian 8 "Jessie", this problem has been fixed in version
1.3.20-3+deb8u11.

We recommend that you upgrade your graphicsmagick packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS