diff --git a/kdc/kaserver.c b/kdc/kaserver.c
index 66691932d..fde417506 100644
--- a/kdc/kaserver.c
+++ b/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);