Cisco issued a security advisory today for multiple vulnerabilities in its Cisco ASA 5500 Series Adaptive Security Appliance and the Cisco PIX Security Appliances, all but one of which could lead to a denial of service attack. The Cisco ASA 5500 is a modular platform providing security and VPN services, while the Cisco PIX appliance is a security device protecting Internet connections geared for remote and branch offices.
Altogether, four denial of service vulnerabilities can be found in the Crafted TCP ACK Packet, the Crafted TLS Packet, the Vulnerability Scan and the Instant Messenger inspection, which includes a glitch that could lead to a denial of service attack in the Cisco ASA and Cisco PIX if the inspection engine was enabled.
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