Secunia Research Advisory

activePDF DocConverter Folio Flat File Parsing Buffer Overflows


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                     Secunia Research 08/04/2008

 - activePDF DocConverter Folio Flat File Parsing Buffer Overflows -

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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

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1) Affected Software 

* activePDF DocConverter 3.8.4.0

NOTE: Other versions may also be affected.

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2) Severity 

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

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3) Vendor's Description of Software 

"activePDF DocConverter enables you to convert to PDF from over 280
different file types, without requiring manual intervention."

Product Link:
http://www.activepdf.com/products/serverproducts/docconverter/

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4) Description of Vulnerability

Secunia Research has discovered 21 vulnerabilities in activePDF 
DocConverter, which can be exploited by malicious people to compromise
a vulnerable system.

Boundary errors within the "Folio Flat File" speed reader (foliosr.dll)
when handling attribute values of a number of tags (eg. DI, FD, FT, JD,
JL, LE, OB, OD, OL, PN, PS, PW, RD, QL, or TS) can be exploited to
cause stack-based buffer overflows.

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5) Solution 

The vulnerabilities will be addressed in an upcoming version 3.8.4.5 
by removing the affected file viewers.

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6) Time Table 

28/12/2007 - Autonomy notified.
28/12/2007 - Autonomy responds.
03/01/2008 - activePDF and other vendors notified.
11/03/2008 - Symantec release p189 of SMSSMTP 5.0.1 containing fix.
14/03/2008 - activePDF notified of published fix.
08/04/2008 - Public disclosure.

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7) Credits 

Discovered by Dyon Balding, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2007-6020 for the vulnerability.

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9) About Secunia

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

https://www.flexera.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.

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.

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

https://www.flexera.com/company/careers

Secunia offers a FREE mailing list called Secunia Security Advisories:

https://www.flexera.com/secunia_security_advisories/ 

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10) Verification 

Please verify this advisory by visiting the Secunia website:
https://www.flexera.com/about-us/secunia-research/advisories/sr-2007-106.html

Complete list of vulnerability reports published by Secunia Research:
https://www.flexera.com/about-us/secunia-research/advisories/

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