Apple has released the Security Update 2011-002 for Mac OS X Leopard v10.5.8, Mac OS X Snow Leopard v10.6.7. This update addresses the security against recent Comodo SSL certificate fraudulent.
Impact: An attacker with a privileged network position may intercept user credentials or other sensitive information
Description: Several fraudulent SSL certificates were issued by a Comodo affiliate registration authority. This may allow a man-in-the-middle attacker to redirect connections and intercept user credentials or other sensitive information. This issue is addressed by blacklisting the fraudulent certificates.
Note: For iOS, this issue is addressed with iOS 4.3.2 and iOS 4.2.7. For Windows systems, Safari relies on the certificate store of the host operating system to determine if an SSL server certificate is trustworthy. Applying the update described in Microsoft Knowledge Base Article 2524375 will cause Safari to regard these certificates as untrusted. The article is available at http://support.microsoft.com/kb/2524375
For details about this security update, please refer to About Security Update 2011-002 page.
Security Update 2011-002 can be downloaded from Apple Software Update under Apple menu or from Apple's Support Download site.
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