Vulnerability Monitor

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CVE-2023-20072

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 could allow the attacker to cause the affected system to reload, resulting in a DoS condition. Note: Only traffic directed to the affected system can be used to exploit this vulnerability.

Published

2023-03-23T17:15:14.727

Last Modified

2024-11-21T07:40:29.253

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.6 (HIGH)

Weaknesses
  • Type: Secondary
    CWE-20
  • Type: Primary
    NVD-CWE-noinfo
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios_xe 17.9.1 Yes
Operating System cisco ios_xe 17.9.1a Yes
Operating System cisco ios_xe 17.9.1w Yes
References