The OJPEGReadHeaderInfoSecTablesDcTable function in tif_ojpeg.c in LibTIFF 4.0.7 allows remote attackers to cause a denial of service (memory leak) via a crafted image.
https://usn.ubuntu.com/3602-1/
https://security.gentoo.org/glsa/201709-27
http://www.securityfocus.com/bid/97503