CVE-2023-20072 (ios_xe) | allinfosecnews.com

March 23, 2023, 5:15 p.m. |

National Vulnerability Database web.nvd.nist.gov

A vulnerability in the fragmentation handling code of tunnel protocol packets in Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected system to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to the improper handling of large fragmented tunnel protocol packets. One example of a tunnel protocol is Generic Routing Encapsulation (GRE). An attacker could exploit this vulnerability by sending crafted fragmented packets to an affected system. A successful exploit …

cisco cisco ios cisco ios xe code cve denial of service dos exploit fragmentation gre handling ios large packets protocol routing service software system tunnel vulnerability

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