diff --git a/ChangeLog b/ChangeLog
index 40280b3e53..4cb3b3cc3e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -15,6 +15,7 @@ phpMyAdmin - ChangeLog
 - issue #11589 Incorrect parameter in mysqli_fetch_fields()
 - issue #11592 Missing headers in zipped export
 - issue #11590 Parser: Array to string conversion
+- issue #11597 Huge binary log growth on 4.5.x
 
 4.5.1.0 (2015-10-23)
 - issue        Invalid argument supplied for foreach()
diff --git a/libraries/check_user_privileges.lib.php b/libraries/check_user_privileges.lib.php
index 63f2c3e85a..b6c9851905 100644
--- a/libraries/check_user_privileges.lib.php
+++ b/libraries/check_user_privileges.lib.php
@@ -39,6 +39,22 @@ function PMA_checkRequiredPrivilegesForFlushing()
  */
 function PMA_checkRequiredPrivilgesForAdjust()
 {
+    if (PMA\libraries\Util::cacheExists('db_priv')) {
+        $GLOBALS['db_priv'] = PMA\libraries\Util::cacheGet(
+            'db_priv'
+        );
+        $GLOBALS['col_priv'] = PMA\libraries\Util::cacheGet(
+            'col_priv'
+        );
+        $GLOBALS['table_priv'] = PMA\libraries\Util::cacheGet(
+            'table_priv'
+        );
+        $GLOBALS['proc_priv'] = PMA\libraries\Util::cacheGet(
+            'proc_priv'
+        );
+        return;
+    }
+
     $privs_available = true;
     // FOR DB PRIVS
     $select_privs_available = $GLOBALS['dbi']->tryQuery(
@@ -214,6 +230,12 @@ function PMA_checkRequiredPrivilgesForAdjust()
     // Save the value
     $GLOBALS['proc_priv'] = $privs_available;
 
+    // must also cacheUnset() them in
+    // libraries/plugins/auth/AuthenticationCookie.class.php
+    PMA\libraries\Util::cacheSet('proc_priv', $GLOBALS['proc_priv']);
+    PMA\libraries\Util::cacheSet('table_priv', $GLOBALS['table_priv']);
+    PMA\libraries\Util::cacheSet('col_priv', $GLOBALS['col_priv']);
+    PMA\libraries\Util::cacheSet('db_priv', $GLOBALS['db_priv']);
 }
 
 /**
diff --git a/libraries/plugins/auth/AuthenticationCookie.php b/libraries/plugins/auth/AuthenticationCookie.php
index 1a98ea7c7b..23d2a29416 100644
--- a/libraries/plugins/auth/AuthenticationCookie.php
+++ b/libraries/plugins/auth/AuthenticationCookie.php
@@ -444,6 +444,11 @@ class AuthenticationCookie extends AuthenticationPlugin
             Util::cacheUnset('db_to_create');
             Util::cacheUnset('dbs_where_create_table_allowed');
             Util::cacheUnset('dbs_to_test');
+            Util::cacheUnset('db_priv');
+            Util::cacheUnset('col_priv');
+            Util::cacheUnset('table_priv');
+            Util::cacheUnset('proc_priv');
+
             $GLOBALS['no_activity'] = true;
             $this->authFails();
             if (! defined('TESTSUITE')) {