Oss-fuzz testing of GraphicsMagick has discovered a dereference of a null pointer in libheif. The oss-fuzz issue number is 393401472. The call stack looks like this: ...

gd is an open-source library that allows users to create and manipulate images easily. It lets you open images in formats such as JPEG, PNG, XPM and a few more. gd works something like this: it opens ...