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Vulnerability Note VU#869641Research In Motion TeamOn Import Object ActiveX control buffer overflowOverviewThe Research In Motion TeamOn Import Object ActiveX control contains a buffer overflow, which could allow an attacker to execute arbitrary code on a vulnerable system.I. DescriptionThe Research In Motion TeamOn Import Object is an ActiveX control, which is provided by the file TOImport.dll. The SetLanguage() method of this control contains a buffer overflow vulnerability.II. ImpactBy convincing a user to view a specially crafted HTML document (e.g., a web page or an HTML email message or attachment), an attacker may be able to execute arbitrary code with the privileges of the user. The attacker could also cause Internet Explorer (or the program using the WebBrowser control) to crash.III. SolutionApply an updateThis vulnerability is addressed by Microsoft Security Bulletin MS07-027. This update sets the kill bit for the vulnerable control. More information is available in the BlackBerry document KB13142.
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{1D95A7C7-3282-4DB7-9A48-7C39CE152A19}] "Compatibility Flags"=dword:00000400 Disabling ActiveX controls in the Internet Zone (or any zone used by an attacker) appears to prevent exploitation of this and other ActiveX vulnerabilities. Instructions for disabling ActiveX in the Internet Zone can be found in the "Securing Your Web Browser" document. Systems Affected
Referenceshttp://www.cert.org/tech_tips/securing_browser/#Internet_Explorer This vulnerability was reported by Will Dormann of CERT/CC This document was written by Will Dormann.
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