From ae2dd1d255b360ab819f8195fa88188012ba47f6 Mon Sep 17 00:00:00 2001
From: Stefan <Stefan_Hahn1@gmx.net>
Date: Fri, 2 Sep 2016 17:41:02 +0200
Subject: [PATCH] Add length check for mail address

---
 wcfsetup/install/files/lib/util/UserUtil.class.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/wcfsetup/install/files/lib/util/UserUtil.class.php b/wcfsetup/install/files/lib/util/UserUtil.class.php
index ab00d6e2a2..a630ba1e87 100644
--- a/wcfsetup/install/files/lib/util/UserUtil.class.php
+++ b/wcfsetup/install/files/lib/util/UserUtil.class.php
@@ -66,6 +66,10 @@ final class UserUtil {
 	 * @return	boolean
 	 */
 	public static function isValidEmail($email) {
+		if (mb_strlen($email) > 191) {
+			return false;
+		}
+		
 		// local-part
 		$c = '!#\$%&\'\*\+\-\/0-9=\?a-z\^_`\{\}\|~';
 		$string = '['.$c.']*(?:\\\\[\x00-\x7F]['.$c.']*)*';
-- 
2.20.1