Cisco Releases Multiple Security Advisories

Cisco has released three security advisories to address vulnerabilities affecting Cisco ASA 5500 Series Adaptive Security Appliances, Cisco Catalyst 6500 Series ASA Services Module, Cisco Firewall Services Module, and Cisco Network Admission Control Manager. These vulnerabilities may allow an attacker to cause a denial-of-service condition, bypass authentication mechanisms, or obtain sensitive information.

US-CERT encourages users and administrators to review Cisco security advisories cisco-sa-20111005-asa, cisco-sa-20111005-fwsm, and cisco-sa-20111005-nac and apply any necessary updates to help mitigate the risks.

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