2017.11.18 21:11 "[Tiff] TIFF v4.0.9 is released", by Bob Friesenhahn
Libtiff v4.0.9 is now available. A great many security improvements have been implemented by Even Rouault.
Much thanks to OSS Fuzz, team OWL337, Roger Leigh, and of course Even Rouault.
Read about the new release at one of the two libtiff web pages at
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/