CVE-2023-20072

2023-03-2317:15:14

CWE-20

[email protected]

web.nvd.nist.gov

cisco

ios xe

software

vulnerability

dos

cve-2023-20072

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

8.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

46.4%

JSON

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.

Affected configurations

NVD

Node

ciscoios_xeMatch17.9.1

ciscoios_xeMatch17.9.1a

ciscoios_xeMatch17.9.1w

CPENameOperatorVersion
cisco:ios_xecisco ios xeeq17.9.1
cisco:ios_xecisco ios xeeq17.9.1a
cisco:ios_xecisco ios xeeq17.9.1w

CPE	Name	Operator	Version
cisco:ios_xe	cisco ios xe	eq	17.9.1
cisco:ios_xe	cisco ios xe	eq	17.9.1a
cisco:ios_xe	cisco ios xe	eq	17.9.1w

CNA Affected

[
  {
    "vendor": "Cisco",
    "product": "Cisco IOS XE Software ",
    "versions": [
      {
        "version": "n/a",
        "status": "affected"
      }
    ]
  }
]