From 1547ecce6797751b033d651b89676412435622c0 Mon Sep 17 00:00:00 2001
From: Franco Fichtner <franco@opnsense.org>
Date: Fri, 20 Apr 2018 09:57:50 +0200
Subject: [PATCH] services: if ip detection fails don't leak private IPv4

PR: https://github.com/opnsense/core/issues/2368
---
 src/etc/inc/services.inc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/etc/inc/services.inc b/src/etc/inc/services.inc
index 538b9e179..09c6d64fd 100644
--- a/src/etc/inc/services.inc
+++ b/src/etc/inc/services.inc
@@ -1606,6 +1606,7 @@ function get_dyndns_ip($int, $ipver = 4)
             $ip_address = trim($matches[1]);
         } else {
             log_error('Aborted IPv4 detection: ' . curl_error($ip_ch));
+            $ip_address = '';
         }
         curl_close($ip_ch);
         if (!is_ipaddrv4($ip_address)) {