Buffer overflow in the IEToolbar.IEContextMenu.1 ActiveX control in LinkedInIEToolbar.dll in the LinkedIn Toolbar 3.0.2.1098 allows remote attackers to execute arbitrary code via a long second argument (varBrowser argument) to the search method. NOTE: some of these details are obtained from third party information.
https://www.exploit-db.com/exploits/4217
https://exchange.xforce.ibmcloud.com/vulnerabilities/35578
http://www.vupen.com/english/advisories/2007/2620
http://www.vdalabs.com/tools/linkedin.html