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CVE-2022-20760

Disclosure Date: April 27, 2022
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Description

A vulnerability in the DNS inspection handler of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service condition (DoS) on an affected device. This vulnerability is due to a lack of proper processing of incoming requests. An attacker could exploit this vulnerability by sending crafted DNS requests at a high rate to an affected device. A successful exploit could allow the attacker to cause the device to stop responding, resulting in a DoS condition.

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General Information

Vendors

  • Cisco

Products

  • Cisco Adaptive Security Appliance (ASA) Software

Additional Info

Technical Analysis