[Time to upgrade PHP again -- Raju]
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Message-ID: <[EMAIL PROTECTED]>
From: Sir Mordred <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: @(#)Mordred Labs advisory - Integer overflow in PHP array_pad() function
Date: Tue, 01 Apr 2003 10:54:43 +0000
//@(#) Mordred Security Labs advisory
Release date: April 1, 2003
Name: Integer overflow in PHP array_pad() function
Versions affected: all versions
Risk: average
Author: Sir Mordred ([EMAIL PROTECTED])
I. Description:
PHP is a widely-used general-purpose scripting language that is
especially suited for Web development and can be embedded into HTML.
Please visit http://www.php.net for more information about PHP.
II. Details:
The function array_pad(array input, int pad_size, mixed pad_value) returns
a copy
of the input padded to size specified by pad_size with pad_value.
Unfortunately the implementation of this function suffers from an integer
overflow caused by
a very long second argument and could allow a local/remote attacker in the
worst case
to gain control over the web server.
The following short script will cause a httpd child to die:
$ cat t.php
<?php
array_pad(array(1,2,3), 0x40000003, "pad");
?>
III. Platforms tested
Linux 2.4 with Apache 1.3.27 / PHP 4.3.1
IV. Vendor response
Vendor has been contacted.
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******************
--
Raj Mathur [EMAIL PROTECTED] http://kandalaya.org/
It is the mind that moves
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