https://github.com/ImageMagick/ImageMagick/issues/710

diff --git a/coders/cut.c b/coders/cut.c
index 6343371a5972d78d6e684b423b11092f06852a73..c8661277ca835650bd95a28750714f2c396af571 100644 (file)
--- a/coders/cut.c
+++ b/coders/cut.c
@@ -576,6 +576,8 @@ static Image *ReadCUTImage(const ImageInfo *image_info,ExceptionInfo *exception)
               for (i=0; i < (ssize_t)image->rows; i++)
                 {
                   q=QueueAuthenticPixels(image,0,i,image->columns,1,exception);
+                  if (q == (Quantum *) NULL)
+                    break;
                   for (j=0; j < (ssize_t)image->columns; j++)
                     {
                       if (GetPixelRed(image,q) == ScaleCharToQuantum(1))