Index: tiff-4.0.9/tools/bmp2tiff.c
===================================================================
--- tiff-4.0.9.orig/tools/bmp2tiff.c	2018-08-27 10:42:59.151745101 +0200
+++ tiff-4.0.9/tools/bmp2tiff.c	2018-08-27 14:16:05.498611684 +0200
@@ -693,7 +693,11 @@ main(int argc, char* argv[])
                         }
 			i = 0;
 			j = 0;
-			if (info_hdr.iBitCount == 8) {		/* RLE8 */
+                        if (info_hdr.iBitCount > 8) {
+                                TIFFError(infilename, "Handle of this type image is not implemented");
+                                goto bad;
+                        }
+			else if (info_hdr.iBitCount == 8) {		/* RLE8 */
                                 while(j < uncompr_size && i < compr_size) {
                                         if ( comprbuf[i] ) {
                                                 runlength = comprbuf[i++];