CVE-2009-4049
Heap-based buffer overflow in aswRdr.sys (aka the TDI RDR driver) in avast! Home and Professional 4.8.1356.0 allows local users to cause a denial of service (memory corruption) or possibly gain privileges via crafted arguments to IOCTL 0x80002024.
Date published : 2009-11-23
http://www.securityfocus.com/bid/37031
http://www.securityfocus.com/archive/1/507891/100/0/threaded