Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2019-1750

Severity CVSS v4.0:
Pending analysis
Type:
CWE-388 Error Handling
Publication date:
28/03/2019
Last modified:
09/10/2019

Description

A vulnerability in the Easy Virtual Switching System (VSS) of Cisco IOS XE Software on Catalyst 4500 Series Switches could allow an unauthenticated, adjacent attacker to cause the switches to reload. The vulnerability is due to incomplete error handling when processing Cisco Discovery Protocol (CDP) packets used with the Easy Virtual Switching System. An attacker could exploit this vulnerability by sending a specially crafted CDP packet. An exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition.

Impact

Vector 3.x
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.40 HIGH
Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector (AV): Adjacent
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
7.40
Severity 3.x
HIGH
Vector 2.0
AV:A/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 6.10 MEDIUM
Vector: AV:A/AC:L/Au:N/C:N/I:N/A:C

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
6.10
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ios_xe:3.6.0ae:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.0be:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.0e:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.1e:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.2ae:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.2e:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.3e:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.4e:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.5ae:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.5be:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.5e:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.6e:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.7ae:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.7be:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:3.6.7e:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools