The ConvertToPDF plugin in Foxit Reader and PhantomPDF before 8.1 on Windows, when the gflags app is enabled, allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted TIFF image, aka “Data from Faulting Address is used as one or more arguments in a subsequent Function Call starting at ConvertToPDF_x86!CreateFXPDFConvertor.”