CVE-2022-20870

Published: Oct 10, 2022Modified: Nov 21, 2024

8.6

Vector

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

Exploitability: 3.9 / Impact: 4.0

Source: NVD

Description

A vulnerability in the egress MPLS packet processing function of Cisco IOS XE Software for Cisco Catalyst 3650, Catalyst 3850, and Catalyst 9000 Family Switches could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient input validation of IPv4 traffic. An attacker could exploit this vulnerability by sending a malformed packet out of an affected MPLS-enabled interface. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

Affected (1)

Products: Cisco: Ios Xe

Cisco

1 product

Ios Xe

Configuration A

1 vulnerable · 192 platform

Vulnerable Software	Affected Versions
Cisco Ios Xe	All versions

Running on/with	Platform Versions
Cisco Catalyst 3650	All versions
Cisco Catalyst 3650 12x48fd E	All versions
Cisco Catalyst 3650 12x48fd L	All versions
Cisco Catalyst 3650 12x48fd S	All versions
Cisco Catalyst 3650 12x48uq	All versions
Cisco Catalyst 3650 12x48uq E	All versions
Cisco Catalyst 3650 12x48uq L	All versions
Cisco Catalyst 3650 12x48uq S	All versions
Cisco Catalyst 3650 12x48ur	All versions
Cisco Catalyst 3650 12x48ur E	All versions
Cisco Catalyst 3650 12x48ur L	All versions
Cisco Catalyst 3650 12x48ur S	All versions
Cisco Catalyst 3650 12x48uz	All versions
Cisco Catalyst 3650 12x48uz E	All versions
Cisco Catalyst 3650 12x48uz L	All versions
Cisco Catalyst 3650 12x48uz S	All versions
Cisco Catalyst 3650 24pd	All versions
Cisco Catalyst 3650 24pd E	All versions
Cisco Catalyst 3650 24pd L	All versions
Cisco Catalyst 3650 24pd S	All versions
Cisco Catalyst 3650 24pdm	All versions
Cisco Catalyst 3650 24pdm E	All versions
Cisco Catalyst 3650 24pdm L	All versions
Cisco Catalyst 3650 24pdm S	All versions
Cisco Catalyst 3650 24ps E	All versions
Cisco Catalyst 3650 24ps L	All versions
Cisco Catalyst 3650 24ps S	All versions
Cisco Catalyst 3650 24td E	All versions
Cisco Catalyst 3650 24td L	All versions
Cisco Catalyst 3650 24td S	All versions
Cisco Catalyst 3650 24ts E	All versions
Cisco Catalyst 3650 24ts L	All versions
Cisco Catalyst 3650 24ts S	All versions
Cisco Catalyst 3650 48fd E	All versions
Cisco Catalyst 3650 48fd L	All versions
Cisco Catalyst 3650 48fd S	All versions
Cisco Catalyst 3650 48fq	All versions
Cisco Catalyst 3650 48fq E	All versions
Cisco Catalyst 3650 48fq L	All versions
Cisco Catalyst 3650 48fq S	All versions
Cisco Catalyst 3650 48fqm	All versions
Cisco Catalyst 3650 48fqm E	All versions
Cisco Catalyst 3650 48fqm L	All versions
Cisco Catalyst 3650 48fqm S	All versions
Cisco Catalyst 3650 48fs E	All versions
Cisco Catalyst 3650 48fs L	All versions
Cisco Catalyst 3650 48fs S	All versions
Cisco Catalyst 3650 48pd E	All versions
Cisco Catalyst 3650 48pd L	All versions
Cisco Catalyst 3650 48pd S	All versions
Cisco Catalyst 3650 48pq E	All versions
Cisco Catalyst 3650 48pq L	All versions
Cisco Catalyst 3650 48pq S	All versions
Cisco Catalyst 3650 48ps E	All versions
Cisco Catalyst 3650 48ps L	All versions
Cisco Catalyst 3650 48ps S	All versions
Cisco Catalyst 3650 48td E	All versions
Cisco Catalyst 3650 48td L	All versions
Cisco Catalyst 3650 48td S	All versions
Cisco Catalyst 3650 48tq E	All versions
Cisco Catalyst 3650 48tq L	All versions
Cisco Catalyst 3650 48tq S	All versions
Cisco Catalyst 3650 48ts E	All versions
Cisco Catalyst 3650 48ts L	All versions
Cisco Catalyst 3650 48ts S	All versions
Cisco Catalyst 3650 8x24pd E	All versions
Cisco Catalyst 3650 8x24pd L	All versions
Cisco Catalyst 3650 8x24pd S	All versions
Cisco Catalyst 3650 8x24uq	All versions
Cisco Catalyst 3650 8x24uq E	All versions
Cisco Catalyst 3650 8x24uq L	All versions
Cisco Catalyst 3650 8x24uq S	All versions
Cisco Catalyst 3850	All versions
Cisco Catalyst 3850 12s E	All versions
Cisco Catalyst 3850 12s S	All versions
Cisco Catalyst 3850 12x48u	All versions
Cisco Catalyst 3850 12xs E	All versions
Cisco Catalyst 3850 12xs S	All versions
Cisco Catalyst 3850 16xs E	All versions
Cisco Catalyst 3850 16xs S	All versions
Cisco Catalyst 3850 24p E	All versions
Cisco Catalyst 3850 24p L	All versions
Cisco Catalyst 3850 24p S	All versions
Cisco Catalyst 3850 24pw S	All versions
Cisco Catalyst 3850 24s E	All versions
Cisco Catalyst 3850 24s S	All versions
Cisco Catalyst 3850 24t E	All versions
Cisco Catalyst 3850 24t L	All versions
Cisco Catalyst 3850 24t S	All versions
Cisco Catalyst 3850 24u	All versions
Cisco Catalyst 3850 24u E	All versions
Cisco Catalyst 3850 24u L	All versions
Cisco Catalyst 3850 24u S	All versions
Cisco Catalyst 3850 24xs	All versions
Cisco Catalyst 3850 24xs E	All versions
Cisco Catalyst 3850 24xs S	All versions
Cisco Catalyst 3850 24xu	All versions
Cisco Catalyst 3850 24xu E	All versions
Cisco Catalyst 3850 24xu L	All versions
Cisco Catalyst 3850 24xu S	All versions
Cisco Catalyst 3850 32xs E	All versions
Cisco Catalyst 3850 32xs S	All versions
Cisco Catalyst 3850 48f E	All versions
Cisco Catalyst 3850 48f L	All versions
Cisco Catalyst 3850 48f S	All versions
Cisco Catalyst 3850 48p E	All versions
Cisco Catalyst 3850 48p L	All versions
Cisco Catalyst 3850 48p S	All versions
Cisco Catalyst 3850 48pw S	All versions
Cisco Catalyst 3850 48t E	All versions
Cisco Catalyst 3850 48t L	All versions
Cisco Catalyst 3850 48t S	All versions
Cisco Catalyst 3850 48u	All versions
Cisco Catalyst 3850 48u E	All versions
Cisco Catalyst 3850 48u L	All versions
Cisco Catalyst 3850 48u S	All versions
Cisco Catalyst 3850 48xs	All versions
Cisco Catalyst 3850 48xs E	All versions
Cisco Catalyst 3850 48xs F E	All versions
Cisco Catalyst 3850 48xs F S	All versions
Cisco Catalyst 3850 48xs S	All versions
Cisco Catalyst 3850 Nm 2 40g	All versions
Cisco Catalyst 3850 Nm 8 10g	All versions
Cisco Catalyst 9300	All versions
Cisco Catalyst 9300 24p A	All versions
Cisco Catalyst 9300 24p E	All versions
Cisco Catalyst 9300 24s A	All versions
Cisco Catalyst 9300 24s E	All versions
Cisco Catalyst 9300 24t A	All versions
Cisco Catalyst 9300 24t E	All versions
Cisco Catalyst 9300 24u A	All versions
Cisco Catalyst 9300 24u E	All versions
Cisco Catalyst 9300 24ux A	All versions
Cisco Catalyst 9300 24ux E	All versions
Cisco Catalyst 9300 48p A	All versions
Cisco Catalyst 9300 48p E	All versions
Cisco Catalyst 9300 48s A	All versions
Cisco Catalyst 9300 48s E	All versions
Cisco Catalyst 9300 48t A	All versions
Cisco Catalyst 9300 48t E	All versions
Cisco Catalyst 9300 48u A	All versions
Cisco Catalyst 9300 48u E	All versions
Cisco Catalyst 9300 48un A	All versions
Cisco Catalyst 9300 48un E	All versions
Cisco Catalyst 9300 48uxm A	All versions
Cisco Catalyst 9300 48uxm E	All versions
Cisco Catalyst 9300l	All versions
Cisco Catalyst 9300l 24p 4g A	All versions
Cisco Catalyst 9300l 24p 4g E	All versions
Cisco Catalyst 9300l 24p 4x A	All versions
Cisco Catalyst 9300l 24p 4x E	All versions
Cisco Catalyst 9300l 24t 4g A	All versions
Cisco Catalyst 9300l 24t 4g E	All versions
Cisco Catalyst 9300l 24t 4x A	All versions
Cisco Catalyst 9300l 24t 4x E	All versions
Cisco Catalyst 9300l 48p 4g A	All versions
Cisco Catalyst 9300l 48p 4g E	All versions
Cisco Catalyst 9300l 48p 4x A	All versions
Cisco Catalyst 9300l 48p 4x E	All versions
Cisco Catalyst 9300l 48t 4g A	All versions
Cisco Catalyst 9300l 48t 4g E	All versions
Cisco Catalyst 9300l 48t 4x A	All versions
Cisco Catalyst 9300l 48t 4x E	All versions
Cisco Catalyst 9300lm	All versions
Cisco Catalyst 9300x	All versions
Cisco Catalyst 9400	All versions
Cisco Catalyst 9500	All versions
Cisco Catalyst 9500h	All versions
Cisco Catalyst 9600	All versions
Cisco Catalyst C3850 12x48u E	All versions
Cisco Catalyst C3850 12x48u L	All versions
Cisco Catalyst C3850 12x48u S	All versions
Cisco Catalyst C9500 12q	All versions
Cisco Catalyst C9500 12q A	All versions
Cisco Catalyst C9500 12q E	All versions
Cisco Catalyst C9500 16x	All versions
Cisco Catalyst C9500 16x A	All versions
Cisco Catalyst C9500 16x E	All versions
Cisco Catalyst C9500 24q	All versions
Cisco Catalyst C9500 24q A	All versions
Cisco Catalyst C9500 24q E	All versions
Cisco Catalyst C9500 24y4c	All versions
Cisco Catalyst C9500 32c	All versions
Cisco Catalyst C9500 32qc	All versions
Cisco Catalyst C9500 40x	All versions
Cisco Catalyst C9500 40x A	All versions
Cisco Catalyst C9500 40x E	All versions
Cisco Catalyst C9500 48y4c	All versions
Cisco Catalyst C9600 Lc 24c	All versions
Cisco Catalyst C9600 Lc 48s	All versions
Cisco Catalyst C9600 Lc 48tx	All versions
Cisco Catalyst C9600 Lc 48yl	All versions

Related CWEs

CWE-130

Improper Handling of Length Parameter Inconsistency

The product parses a formatted message or structure, but it does not handle or incorrectly handles a length field that is inconsistent with the actual length of the associated data.

References (2)

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-mpls-dos-Ab4OUL3

Source: psirt@cisco.com

Vendor Advisory

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-mpls-dos-Ab4OUL3

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

Timeline

No history available yet.