Microsoft Exchange and Windows SMTP Service Denial of Service Vulnerability (981832)

This host is missing a critical security update according to Microsoft Bulletin MS10-024.
Successful exploitation could lead to Denial of Service Impact Level: Application
Run Windows Update and update the listed hotfixes or download and update mentioned hotfixes in the advisory from the below link,
An error exists MS Windows Simple Mail Transfer Protocol (SMTP) component, - while handling specially crafted DNS Mail Exchanger (MX) resource records. - due to the manner in which the SMTP component handles memory allocation
Microsoft Windows 2K Service Pack 4 and prior. Microsoft Windows XP Service Pack 3 and prior. Microsoft Windows 2K3 Service Pack 2 and prior. Microsoft Exchange Server 2000 Service Pack 3 Microsoft Exchange Server 2003 Service Pack 2