diff -urNp old/src/libjasper/jp2/jp2_enc.c new/src/libjasper/jp2/jp2_enc.c
--- old/src/libjasper/jp2/jp2_enc.c	2017-08-25 12:49:46.242889564 +0200
+++ new/src/libjasper/jp2/jp2_enc.c	2017-08-25 12:56:41.041654317 +0200
@@ -115,6 +115,11 @@ int jp2_encode(jas_image_t *image, jas_s
 	iccstream = 0;
 	iccprof = 0;
 
+	if (jas_image_numcmpts(image) < 1) {
+		jas_eprintf("image must have at least one component\n");
+		goto error;
+	}
+
 	allcmptssame = 1;
 	sgnd = jas_image_cmptsgnd(image, 0);
 	prec = jas_image_cmptprec(image, 0);