Apple has released security updates for Apple OS X Lion 10.7 to 10.7.2, OS X Lion Server 10.7 to 10.7.2, Mac OS 10.6.8, and Mac OS X Server v 10.6.8 to address multiple vulnerabilities. These vulnerabilities may allow an attacker to execute arbitrary code, cause a denial-of-service condition, obtain sensitive information, and bypass security restrictions.
US-CERT encourages users and administrators to review Apple Support Article HT5130 and apply any necessary updates to help mitigate the risks.
Additional information regarding CVE-2011-3449 can be found in US-CERT Vulnerability Note VU#410281.
Additional information regarding CVE-2011-3446 can be found in US-CERT Vulnerability Note VU#403593.