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CVE-2022-20870

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
10/10/2022
Last modified:
07/11/2023

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.60 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
8.60
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ios_xe:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-12x48fd-e:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-12x48fd-l:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-12x48fd-s:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-12x48uq:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-12x48uq-e:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-12x48uq-l:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-12x48uq-s:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-12x48ur:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-12x48ur-e:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-12x48ur-l:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-12x48ur-s:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-12x48uz:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3650-12x48uz-e:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools