bugtraq - Secunia Research: Foxit Reader "util.printf()" Buffer Overflow

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Message-Id: <1211279491.28455.168.camel@ts2.intnet>
Date: Tue, 20 May 2008 12:31:31 +0200
From: Secunia Research <remove-vuln@...unia.com>
To: vuln@...unia.com
Cc: bugtraq@...urityfocus.com
Subject: Secunia Research: Foxit Reader "util.printf()" Buffer Overflow

====================================================================== 

                     Secunia Research 20/05/2008

         - Foxit Reader "util.printf()" Buffer Overflow -

====================================================================== 
Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

====================================================================== 
1) Affected Software 

* Foxit Reader 2.3 build 2825

NOTE: Other versions may also be affected.

====================================================================== 
2) Severity 

Rating: Highly critical
Impact: From remote
Where:  System access

====================================================================== 
3) Vendor's Description of Software 

"Foxit Reader is a free PDF document viewer and printer, with
incredible small size (only 2.55 M download size), breezing-fast
launch speed and rich feature set. Foxit Reader supports Windows Me/
2000/XP/2003/Vista. Its core function is compatible with PDF Standard
1.7.".

Product Link:
http://www.foxitsoftware.com/pdf/rd_intro.php

====================================================================== 
4) Description of Vulnerability

Secunia Research has discovered a vulnerability in Foxit Reader, which
can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error when parsing
format strings containing a floating point specifier in the
"util.printf()" JavaScript function. This can be exploited to cause a
stack-based buffer overflow via a specially crafted PDF file.

Successful exploitation allows execution of arbitrary code.

====================================================================== 
5) Solution 

The vulnerability is fixed in upcoming version 2.3 build 2912.

====================================================================== 
6) Time Table 

23/04/2008 - Vendor notified.
08/05/2008 - Vendor notified again.
08/05/2008 - Vendor response.
20/05/2008 - Public disclosure.

====================================================================== 
7) Credits 

Discovered by Dyon Balding, Secunia Research.

====================================================================== 
8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2008-1104 for the vulnerability.

====================================================================== 
9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://corporate.secunia.com/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private 
individuals, who are interested in or concerned about IT-security.

http://secunia.com/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the 
security and reliability of software in general:

http://corporate.secunia.com/secunia_research/33/

Secunia regularly hires new skilled team members. Check the URL below 
to see currently vacant positions:

http://secunia.com/secunia_vacancies/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/secunia_security_advisories/ 

====================================================================== 
10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2008-18/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

======================================================================