VeryDOC PDF Viewer ActiveX Control Buffer Overflow Vulnerability

Summary
This host is installed with VeryDOC PDF Viewer and is prone to Buffer Overflow vulnerability.
Impact
Successful exploitation will let the attacker execute arbitrary codes in the context of the application to cause heap based buffer overflow and can compromise a vulnerable system.
Solution
No solution or patch was made available for at least one year since disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one. A workaround is to set the killbit for the CLSID {433268D7-2CD4-43E6-AA24-2188672E7252} http://support.microsoft.com/kb/240797 For updates refer to http://verydoc.com/pdf-viewer-ocx.html
Insight
This flaw is due to boundary error in the OpenPDF function method from the PDFVIEW.PdfviewCtrl.1 ActiveX control (pdfview.ocx) which fails to properly validate the input data passed as large string.
Affected
VeryDOC, PDF Viewer Pdfview.ocx version 2.0.0.1 and prior on Windows.
References