Fix radareorg#7152 - Null deref in cms

TommyTeaVee · Mar 27, 2017 · 7ab66cc · 7ab66cc
1 parent 6de4961
commit 7ab66cc
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/libr/util/r_pkcs7.c b/libr/util/r_pkcs7.c
@@ -284,7 +284,9 @@ RCMS *r_pkcs7_parse_cms (const ut8 *buffer, ut32 length) {
 		return NULL;
 	}
 	object = r_asn1_create_object (buffer, length);
-	if (!object || object->list.length != 2 || !object->list.objects[0] || object->list.objects[1]->list.length != 1) {
+	if (!object || object->list.length != 2 || !object->list.objects ||
+		!object->list.objects[0] || !object->list.objects[1] ||
+		object->list.objects[1]->list.length != 1) {
 		r_asn1_free_object (object);
 		free (container);
 		return NULL;