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full-disclosure-uk: [Full-disclosure] Secunia Research: PDF-XCha

[Full-disclosure] Secunia Research: PDF-XChange Viewer Content Parsing Memory Corruption Vulnerability

From: Secunia Research <remove-vuln_at_nospam>
Date: Mon Jan 04 2010 - 13:57:33 GMT
To: full-disclosure@lists.grok.org.uk


Secunia Research 04/01/2010
  • PDF-XChange Viewer Content Parsing Memory Corruption Vulnerability -

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
  • PDF-XChange Viewer 2.0.42.9

NOTE: Other versions may also be affected.



2) Severity

Rating: Highly critical
Impact: System compromise
Where: Remote



3) Vendor's Description of Software

"Those wishing to view PDF files on their Windows PC's now have a choice when it comes to Viewing PDF files - the PDF-XChange Viewer is smaller, faster and more feature rich than the Adobe Reader which has until now been the Reader of choice for PDF files - we think that's about to change!".

Product Link:
http://www.docu-track.com/home/prod_user/



4) Description of Vulnerability

Secunia Research has discovered a vulnerability in PDF-XChange Viewer, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to an input validation error in PDFXCview.exe when parsing certain content and can be exploited to corrupt memory via a specially crafted PDF file.

Successful exploitation allows execution of arbitrary code when a user views a malicious PDF document.

NOTE: The vulnerable code is e.g. also present in the bundled PDF-XChange shell extension (XCShInfo.dll), which is installed by default. This vector allows exploitation as soon as a user e.g. selects a malicious PDF file or hovers the mouse pointer over it.



5) Solution

Update to version 2.044.



6) Time Table 29/12/2009 - Vendor notified. 29/12/2009 - Vendor response received. 31/12/2009 - Vendor issues fixed version and statement. 04/01/2010 - Public disclosure.
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7) Credits

Discovered by Carsten Eiram, Secunia Research.



8) References

The Common Vulnerabilities and Exposures (CVE) project has not currently assigned a CVE identifier 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://secunia.com/advisories/business_solutions/

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/advisories/

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://secunia.com/secunia_research/

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

http://secunia.com/corporate/jobs/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/advisories/mailing_lists/


  1. Verification

Please verify this advisory by visiting the Secunia website: http://secunia.com/secunia_research/2009-64/

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




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