The ReadBlobByte function in coders/pdb.c in ImageMagick 6.x before 6.9.0-5 Beta allows remote attackers to cause a denial of service (infinite loop) via a crafted PDB file.
Exploitability
AV:NAC:LPR:NUI:RScope
S:UImpact
C:NI:NA:H6.5/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H