File 0001-Patch-1-Fixes-heap-buffer-overflow-in-_osip_message_to_str.patch of Package libosip2

--- src/osipparser2/osip_message_to_str.c	2016-06-08 12:43:06.932508602 +0000
+++ src/osipparser2/osip_message_to_str_new.c	2016-06-08 12:59:58.924486896 +0000
@@ -378,6 +378,13 @@
     /* A start-line isn't required for message/sipfrag parts. */
   }
   else {
+    size_t message_len = strlen(tmp);
+    if (_osip_message_realloc (&message, dest, message_len + 3, &malloc_size) < 0) {
+      osip_free (tmp);
+      *dest = NULL;
+      return OSIP_NOMEM;
+    }
+
     message = osip_str_append (message, tmp);
     osip_free (tmp);
     message = osip_strn_append (message, CRLF, 2);