In ImageMagick 7.0.5-6 Q16, the ReadJNGImage function in coders/png.c allows attackers to cause a denial of service (memory leak) via a crafted file.
Exploitability
AV:NAC:LPR:NUI:RScope
S:UImpact
C:NI:NA:H6.5/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H