An apng2gif security update has been released for Debian GNU/Linux 8 LTS to address an integer overflow resulting in a heap-based buffer over-read.

DLA 2165-1: apng2gif security update

Package : apng2gif
Version : 1.5-3+deb8u1
CVE ID : CVE-2017-6960

An issue has been found in apng2gif, a tool for converting APNG images to
animated GIF format.

One of the function contained an integer overflow resulting in a
heap-based buffer over-read.

For Debian 8 "Jessie", this problem has been fixed in version
1.5-3+deb8u1.

We recommend that you upgrade your apng2gif 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