The IncrediMail IMMenuShellExt ActiveX control contains a stack buffer overflow, which can allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.
IncrediMail is an email application that includes animations and 1000's of emoticons. IncrediMail comes with an ActiveX control called IMMenuShellExt, which is provided by the file ImShExt.dll. This ActiveX control contains a stack buffer overflow vulnerability in the DoWebMenuAction() method.
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 Internet Explorer (or the program using the WebBrowser control) to crash.
We are currently unaware of a practical solution to this problem. Please consider the following workarounds
Disable the IMMenuShellExt ActiveX control in Internet Explorer
This vulnerability was reported by Will Dormann of CERT/CC.
This document was written by Will Dormann.
|Date First Published:||2007-04-26|
|Date Last Updated:||2007-04-26 12:15 UTC|