PGN2WEB Buffer Overflow Vulnerability

Bugtraq ID:	12023
Class:	Boundary Condition Error
CVE:
Remote:	Yes
Local:	No
Published:	Dec 15 2004 12:00AM
Updated:	Dec 15 2004 12:00AM
Credit:	Tom Palarz and Kris Kubicki are credited for the discovery of this vulnerability.
Vulnerable:	William Hoggarth pgn2web 0.3
Not Vulnerable:	William Hoggarth pgn2web 0.4

PGN2WEB Buffer Overflow Vulnerability

It is reported that pgn2web is susceptible to a buffer overflow vulnerability. This issue is due to a failure of the application to properly bounds check user-supplied data prior to copying it into a fixed-size memory buffer.

This vulnerability allow remote attackers to alter the proper flow of execution of the application, potentially resulting in the execution of attacker-supplied machine code in the context of the application attempting to read malicious PGN files.

PGN2WEB Buffer Overflow Vulnerability

A proof of concept PGN file sufficient to exploit this vulnerability has been provided:

• /data/vulnerabilities/exploits/45.pgn.zip

PGN2WEB Buffer Overflow Vulnerability

Solution:
The vendor has released an update to address this issue:


William Hoggarth pgn2web 0.3

• William Hoggarth pgn2web-0.4
  http://pgn2web.sourceforge.net/downloads.html

PGN2WEB Buffer Overflow Vulnerability

References:

• [remote] [control] pgn2web 0.3 process_moves overflows token buffer ("D. J. Bernstein" )
  
• pgn2web Home Page (William Hoggarth)