The US-CERT Current Activity web page is a regularly updated summary of the most frequent, high-impact types of security incidents currently being reported to the US-CERT.
The Microsoft Outlook product team has posted a blog entry to inform users of several issues related to the Outlook 2007 update (KB2412171) that was released on December 14. The product team has identified these issues as:
RIM has released a security advisory to address a vulnerability in the PDF distiller of the BlackBerry attachment service for the BlackBerry Enterprise Server. The vulnerability may allow an attacker to execute arbitrary code or cause a denial-of-service condition.
US-CERT encourages users and administrators to review BlackBerry security advisory KB24761 and apply any necessary updates to help mitigate the risks.
Microsoft has released updates to address vulnerabilities in Microsoft Windows, Internet Explorer, Office, SharePoint, and Exchange as part of the Microsoft Security Bulletin Summary for December 2010. These vulnerabilities may allow an attacker to execute arbitrary code, operate with elevated privileges, or cause a denial-of-service condition.
US-CERT encourages users and administrators to review the bulletins and follow best-practice security policies to determine which updates should be applied.