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Cisco Firepower Threat Defense Software TCP Proxy Denial of Service Vulnerability

<p>A vulnerability in the TCP proxy functionality of Cisco&nbsp;Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition.</p>
<p>This vulnerability is due to improper handling of TCP flows. An attacker could exploit this vulnerability by sending a crafted stream of TCP traffic through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.</p>
<p>Cisco&nbsp;has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.</p>
<p>This advisory is available at the following link:<br><a href="https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-tcp-dos-kM9SHhOu">https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-tcp-dos-kM9SHhOu</a></p>

<p>This advisory is part of the April 2022 release of the Cisco&nbsp;ASA, FTD, and FMC Security Advisory Bundled publication. For a complete list of the advisories and links to them, see <a href="https://tools.cisco.com/security/center/viewErp.x?alertId=ERP-74836">Cisco&nbsp;Event Response: April 2022 Cisco&nbsp;ASA, FMC, and FTD Software Security Advisory Bundled Publication</a>.</p>


     
         
Security Impact Rating:  High
   
   
       
CVE: CVE-2022-20746
Source: Cisco Firepower Threat Defense Software TCP Proxy Denial of Service Vulnerability (https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-tcp-dos-kM9SHhOu?vs_f=Cisco%20Security%20Advisory&vs_cat=Security%20Intelligence&vs_type=RSS&vs_p=Cisco%20Firepower%20Threat%20Defense%20Software%20TCP%20Proxy%20Denial%20of%20Service%20Vulnerability&vs_k=1)