(do_getticket): if times data is shorter then 8 byte, request is mailformed.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@12971 ec53bebd-3082-4978-b11e-865c3cabbd6b

kdc/kaserver.c

@@ -604,6 +604,11 @@ do_getticket (struct rx_header *hdr,
 
     unparse_getticket_args (sp, &kvno, &auth_domain, &aticket,
 			    &name, &instance, &times, &max_seq_len);
+    if (times.length < 8) {
+	make_error_reply (hdr, KABADREQUEST, reply);
+	goto out;
+	
+    }
 
     snprintf (server_name, sizeof(server_name),
 	      "%s.%s@%s", name, instance, v4_realm);