The SAVRT.SYS device driver, as used in Symantec AntiVirus Corporate Edition 8.1 and 9.0.x up to 9.0.3, and Symantec Client Security 1.1 and 2.0.x up to 2.0.3, allows local users to execute arbitrary code via a modified address for the output buffer argument to the DeviceIOControl function.
https://exchange.xforce.ibmcloud.com/vulnerabilities/29762
http://www.vupen.com/english/advisories/2006/4157
http://www.symantec.com/avcenter/security/Content/2006.10.23.html
http://www.securityfocus.com/bid/20684
http://www.securityfocus.com/archive/1/449524/100/0/threaded
http://securitytracker.com/id?1017109