#51105 [Opn->Fbk]: PHP str_repeat() Function Integer Overflow

From: Date: Sun, 21 Feb 2010 15:14:28 +0000
Subject: #51105 [Opn->Fbk]: PHP str_repeat() Function Integer Overflow
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-147923@lists.php.net to get a copy of this message 
 ID:               51105
 Updated by:       pajoye@php.net
 Reported By:      r3d dot w0rm at yahoo dot com
-Status:           Open
+Status:           Feedback
 Bug Type:         Strings related
 Operating System: All
 PHP Version:      5.3.2RC2
 New Comment:

Which processor and OS do you use? I get the expected fatal error here.


Previous Comments:
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[2010-02-21 14:44:34] r3d dot w0rm at yahoo dot com

Description:
------------
PHP str_repeat() Function Integer Overflow

AUTHOR : Sina Yazdanmehr(R3d.W0rm)

Discovered by : Sina Yazdanmehr (R3d.W0rm)

Our Site : http://IrCrash.com

Our Forums : http://ircrash.com/persian/

My Official WebSite : http://R3dW0rm.ir

IRCRASH Team Members : Khashayar Fereidani - R3d.w0rm (Sina Yazdanmehr)

Reproduce code:
---------------
<?php
//www.IrCrash.com
//By : R3d.W0rm
$str1 = str_repeat('0x0x0x0x',999999999);
$str2 = str_repeat($str,1);
?>  

Expected result:
----------------
Fatal error: Possible integer overflow in memory allocation (8 *
999999999 + 1) in F:\Program Files\EasyPHP-5.3.1\www\over.php on line 4


Fatal error: Possible integer overflow in memory allocation (8 *
999999999 + 1) in /var/www/html/over.php on line 4



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