CVE-2017-11505 on Ubuntu 16.04 LTS (xenial) - low.
Description:
The ReadOneJNGImage function in coders/png.c in ImageMagick through 6.9.9-0 and 7.x through 7.0.6-1 allows remote attackers to cause a denial of service (large loop and CPU consumption) via a malformed JNG file.