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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.

Microsoft Releases Advance Notification for January Security Bulletin

Microsoft has issued a Security Bulletin Advance Notification indicating that its January release will contain two bulletins. These bulletins will have the severity ratings of critical and important and will be for Microsoft Windows. Release of these bulletins is scheduled for Tuesday, January 11, 2011.

US-CERT will provide additional information as it becomes available.

Apple Releases Mac OS X v10.6.6

Apple has released Mac OS X v10.6.6 to address a vulnerability affecting PackageKit. Exploitation of this vulnerability may allow an attacker to execute arbitrary code or cause a denial-of-service condition.

US-CERT encourages users and administrators to review Apple article HT4498 and apply any necessary updates to help mitigate the risks.

Microsoft Releases Security Advisory

Microsoft has released security advisory 2490606 to alert users of a vulnerability affecting the Windows Graphics Rendering Engine. Exploitation of this vulnerability may allow an attacker to install programs; view, change, or delete data; or create new accounts with full user rights.

US-CERT encourages users and administrators to review Microsoft security advisory 2490606 and the suggested workarounds to help mitigate the risks until a fix is available from the vendor.

US-CERT will provide additional information as it becomes available.

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