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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 May Security Bulletin

Microsoft has issued a Security Bulletin Advance Notification, indicating that its May release cycle will contain two bulletins. Both of these bulletins will have the severity rating of critical and will be for Microsoft Windows, Office, and Visual Basic for Applications. Release of these bulletins is scheduled for Tuesday, May 11, 2010.

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

Foxit Releases Foxit Reader 3.3

The Foxit Corporation has released Foxit Reader 3.3 for Windows. This release of Foxit Reader contains a component called Trust Manager. Foxit Reader release notes indicate that the Trust Manager enables users to allow or deny unauthorized actions and data transmission, including URL connection, attachments PDF action, and JavaScript. This addresses the vulnerability in the PDF specification /Launch function.

US-CERT encourages users and administrators to review the Foxit Reader 3.3 release notes and upgrade to Foxit Reader 3.3 to help mitigate the risks associated with the PDF specification /Launch function vulnerability. Additional information regarding the /Launch function vulnerability can be found in the Vulnerability Notes Database.

Opera Software Releases Opera 10.53

Opera Software has released Opera 10.53 to address a vulnerability. Exploitation of this vulnerability may allow an attacker to execute arbitrary code.

US-CERT encourages users and administrators to review the Opera Software security advisory related to this vulnerability and upgrade to Opera 10.53 to help mitigate the risks.

Microsoft Releases Security Advisory 983438

Microsoft has released security advisory 983438 to notify users of a vulnerability in Microsoft Windows SharePoint Services 3.0 and Microsoft Office SharePoint Server 2007. The advisory states that Microsoft is investigating public reports of exploitation of the vulnerability that may allow the execution of arbitrary script within the SharePoint site.

US-CERT encourages users and administrators to review Microsoft Security Advisory 983438 and apply any workarounds to mitigate the risks.

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

Google Releases Chrome 4.1.249.1064

Google has released Chrome 4.1.249.1064 for Windows to address multiple vulnerabilities. These vulnerabilities may allow an attacker to execute arbitrary code or bypass the same origin policy in the browser.

US-CERT encourages users and administrators to review the Google Chrome Releases blog entry and update to Chrome 4.1.249.1064 for Windows to help mitigate the risks.

Microsoft Re-Releases Security Update for MS10-025

Microsoft has re-released the security update related to Microsoft security bulletin MS10-025. This vulnerability affects Windows Media Services running on Windows 2000 Server. The original release of this update had been revoked last week because it did not effectively correct the underlying vulnerability.

US-CERT encourages users and administrators to review Microsoft security bulletin MS10-025 and apply the update as necessary to help mitigate the risks. Additional information regarding the re-release of this update can be found in the Microsoft Security Response Center blog.

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