The Microgaming Download Helper ActiveX control contains a stack buffer overflow, which can allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.
Microgaming provides software for online gaming, including online casinos. The Microgaming Download Helper ActiveX control, provided by dlhelper.dll, is vulnerable to stack buffer overflow. Older versions of the control are referred to as "WebHandler Class."
By 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 the web browser to crash.
Apply an update
This issue is addressed in version 220.127.116.11 of the Download Helper ActiveX control. Users of the Download Helper ActiveX control can perform the update by following these steps:
If the above steps did not succeed, or if the system has the older "WebHandler Class" control, please use the following workarounds
This vulnerability was reported by Will Dormann of CERT/CC.
This document was written by Will Dormann.
|Date First Published:||2007-04-23|
|Date Last Updated:||2008-10-14 17:33 UTC|