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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.

Apple Releases Java Updates for Mac OS X 10.5 and OS X 10.6

Apple has released Java for Mac OS X 10.5 Update 10 and Java for Mac OS X 10.6 Update 5 to address multiple vulnerabilities. These vulnerabilities may allow an attacker to execute arbitrary code.

US-CERT encourages users and administrators to review Apple articles HT4739 and HT4738 and apply any necessary updates to help mitigate the risks.

Google Releases Chrome 12.0.742.112

Google released Chrome 12.0.742.112 for Windows, Mac, Linux, and Chrome Frame to address multiple vulnerabilities. Exploitation of these vulnerabilities may allow an attacker to execute arbitrary code. This update also contains an updated version of Adobe Flash.

US-CERT encourages users and administrators to review the Google Chrome Releases blog entry and apply any necessary updates to help mitigate the risks.

Apple Releases Security Updates to Address Multiple Vulnerabilities

Apple has released Mac OS X 10.6.8 and Security Update 2011-004 to address multiple vulnerabilities. These vulnerabilities may allow an attacker to execute arbitrary code, disclose sensitive information, or cause a denial-of-service condition.

US-CERT encourages users and administrators to review Apple Support Article HT4723 and apply any necessary updates to help mitigate the risks.

Mozilla Releases Firefox 5 and 3.6.18

The Mozilla Foundation has released Firefox 5 and Firefox 3.6.18 to address multiple vulnerabilities. These vulnerabilities may allow an attacker to execute arbitrary code, violate the same origin policy, or perform a cross-site scripting attack.

US-CERT encourages users and administrators to review the Mozilla Foundation Security Advisories for Firefox 5 and Firefox 3.6.18 and apply any necessary updates to help mitigate the risks.

RIM Releases Security Advisory for BlackBerry PlayBook

RIM has released a security advisory to address vulnerabilities in the Adobe Flash Player version included with the BlackBerry PlayBook tablet software. These vulnerabilities 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 KB27365 and apply any necessary updates to help mitigate the risks.

Adobe Releases Security Bulletin for Critical Vulnerabilities in Shockwave Player

Adobe has released security bulletin APSB11-17 to alert users of critical vulnerabilities in Adobe Shockwave Player 11.5.9.620 and earlier versions on the Windows and Macintosh operating systems. Exploitation of these vulnerabilities may allow an attacker to execute arbitrary code.

US-CERT encourages users and administrators to review the Adobe security bulletin APSB11-17 and apply any updates to help mitigate the risks.

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