Tidylib for PHP Library Remote Buffer Overflow Vulnerability

Bugtraq ID:	24527
Class:	Boundary Condition Error
CVE:
Remote:	Yes
Local:	No
Published:	Jun 19 2007 12:00AM
Updated:	Jun 19 2007 09:49PM
Credit:	rgod is credited with the discovery of this vulnerability.
Vulnerable:	C. Reitzel TidyLib for PHP 050506
Not Vulnerable:

Tidylib for PHP Library Remote Buffer Overflow Vulnerability

Tidylib for PHP is prone to a remote buffer-overflow vulnerability because the library fails to perform boundary checks before copying user-supplied data to insufficiently sized memory buffers.

An attacker can exploit this issue to execute arbitrary machine code in the context of the application using the affected library. Failed exploit attempts will likely cause a crash, denying service to legitimate users.

This issue affects Tidylib for PHP 040603; other versions may also be affected.

Tidylib for PHP Library Remote Buffer Overflow Vulnerability

The following proof of concept is available:

• /data/vulnerabilities/exploits/24527.php

Tidylib for PHP Library Remote Buffer Overflow Vulnerability

Solution:
Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or if you are aware of more recent information, please mail us at: mailto:[email protected].

Tidylib for PHP Library Remote Buffer Overflow Vulnerability

References:

• PHP Homepage (PHP Group)
  
• Tidy Library for PHP Web Site (Tidy Library)