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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.

OpenSSL 'Heartbleed' Vulnerability

A vulnerability in OpenSSL could allow a remote attacker to expose sensitive data, possibly including user authentication credentials and secret keys, through incorrect memory handling in the TLS heartbeat extension. This may allow an attacker to decrypt traffic or perform other attacks. OpenSSL version 1.0.1g resolves this vulnerability. The 1.0.0 and 0.9.8 branches are not vulnerable.

US-CERT recommends users and administrators review Vulnerability Note VU#720951 for additional information and mitigation details. 

Apple Releases Security Updates for Safari

Apple released Safari 6.1.3 and Safari 7.0.3 for OS X to address multiple vulnerabilities in WebKit. Software memory corruption issues may lead to information disclosure, unexpected application termination, or arbitrary code execution.

Users and administrators are encouraged to review Apple Support Article HT6181 and apply the necessary updates.

Microsoft Releases Security Advisory

Microsoft has released a security advisory for Microsoft Word. A vulnerability exists for remote code execution which could allow an attacker to gain user rights by opening a specifically crafted Rich Text Format file.

Applying the Microsoft Fix it solution will disable the opening of RTF content in Microsoft Word, preventing the exploitation of this vulnerability.

US-CERT recommends that users and administrators review Microsoft Security Advisory 2953095 and apply any necessary updates to help mitigate the risk.


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