A memory leak vulnerability was found in the function parseSWF_DOACTION in util/parser.c in Ming 0.4.8, which allows attackers to cause a denial of service via a crafted file.
https://github.com/libming/libming/issues/72
https://euvd.enisa.europa.eu/vulnerability/EUVD-2017-3313
http://somevulnsofadlab.blogspot.jp/2017/07/libmingmemory-leak-in-parseswfdoaction.html