British Telecommunications Webhelper Multiple Buffer Overflow Vulnerabilities

The British Telecommunications Webhelper ActiveX control is prone to multiple buffer-overflow vulnerabilities because the application fails to bounds-check user-supplied data before copying it into an insufficiently sized buffer.

Successfully exploiting these issues allows remote attackers to execute arbitrary code in the context of the application using the ActiveX control (typically Internet Explorer). Failed exploit attempts likely result in denial-of-service conditions.

Versions of British Telecommunications Webhelper ActiveX Control prior to 1.0.0.7 are vulnerable to these issues.


 

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