Cisco Security Advisory - Cisco IOS XR Software for ASR 9000 Series Routers Lightspeed-Plus Line Cards Denial of Service Vulnerability

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Cisco IOS XR Software for ASR 9000 Series Routers Lightspeed-Plus Line Cards Denial of Service Vulnerability

<p>A vulnerability in the data plane microcode of Lightspeed-Plus line cards for <span class="mce-annotation tox-comment" data-mce-annotation-uid="CONV-0005559" data-mce-annotation="tinycomments">Cisco&nbsp;ASR 9000 Series Aggregation Services Routers</span>,&nbsp;ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact High-Performance Routers could allow an unauthenticated, remote attacker to cause the line card to reset.</p>
<p>This vulnerability is due to the incorrect handling of malformed packets that are received on the Lightspeed-Plus line cards. An attacker could exploit this vulnerability by sending a crafted IPv4 or IPv6 packet through an affected device. A successful exploit could allow the attacker to cause the Lightspeed-Plus line card to reset, resulting in a denial of service (DoS) condition for any traffic that traverses that line card.</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-lsplus-Z6AQEOjk" target="_blank" rel="noopener">https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-lsplus-Z6AQEOjk</a></p>
<p>This advisory is part of the April 2022 release of the Cisco&nbsp;IOS XR Software 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-74835">Cisco&nbsp;Event Response: April 2022 Cisco&nbsp;IOS XR Software Security Advisory Bundled Publication</a>.</p>

     
         
Security Impact Rating:  High
   
   
       
CVE: CVE-2022-20714
Source: Cisco IOS XR Software for ASR 9000 Series Routers Lightspeed-Plus Line Cards Denial of Service Vulnerability