Microsoft will host a webcast to address customer questions on latest published security bulletin about vulnerability in ASP.NET which could allow denial of service:
Title: Information About Microsoft's December 2011 Out-of-Band Security Bulletin Release
Date: Thursday, December 29, 2011, at 1:00 P.M. Pacific Time (U.S. & Canada).
For more information about the vulnerability and the security bulletin, please visit the following pages:
Microsoft Security Advisory (2659883) Vulnerability in ASP.NET Could Allow Denial of Service
More information about the December 2011 ASP.Net vulnerability
Microsoft releases Security Advisory 2659883, offers workaround for industry-wide issue
ASP.NET Security Update Shipping Thursday, Dec 29th