From 916c4176667b17629d4b784836ad18674f0f7eba Mon Sep 17 00:00:00 2001
From: Johannes Meyer <johannes.meyer@netways.de>
Date: Tue, 24 Nov 2015 09:45:36 +0100
Subject: [PATCH] LdapUserGroupBackend: Avoid inspecting a group with no
 members

fixes #10659
---
 library/Icinga/Authentication/UserGroup/LdapUserGroupBackend.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/library/Icinga/Authentication/UserGroup/LdapUserGroupBackend.php b/library/Icinga/Authentication/UserGroup/LdapUserGroupBackend.php
index 122453990..64b2fcf63 100644
--- a/library/Icinga/Authentication/UserGroup/LdapUserGroupBackend.php
+++ b/library/Icinga/Authentication/UserGroup/LdapUserGroupBackend.php
@@ -388,6 +388,7 @@ class LdapUserGroupBackend extends LdapRepository implements UserGroupBackendInt
             $sampleValue = $this->ds
                 ->select()
                 ->from($this->groupClass, array($this->groupMemberAttribute))
+                ->where($this->groupMemberAttribute, '*')
                 ->setUnfoldAttribute($this->groupMemberAttribute)
                 ->setBase($this->groupBaseDn)
                 ->fetchOne();