In ImageMagick 7.0.6-3, a missing NULL assignment was found in coders/png.c, leading to an invalid free in the function RelinquishMagickMemory in MagickCore/memory.c, which allows attackers to cause a denial of service.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-12671.json"