Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2018-0395

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
17/10/2018
Last modified:
20/04/2023

Description

A vulnerability in the Link Layer Discovery Protocol (LLDP) implementation for Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition when the device unexpectedly reloads. The vulnerability is due to improper input validation of certain type, length, value (TLV) fields of the LLDP frame header. An attacker could exploit this vulnerability by sending a crafted LLDP packet to an interface on the targeted device. A successful exploit could allow the attacker to cause the switch to reload unexpectedly.

Impact

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

Base Score: 5.30 MEDIUM
Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

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

Base Score 3.x
5.30
Severity 3.x
MEDIUM
Vector 2.0
AV:A/AC:M/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 2.90 LOW
Vector: AV:A/AC:M/Au:N/C:N/I:N/A:P

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

Base Score 2.0
2.90
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:nx-os:6.0\(4\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:6.1\(3\)s2:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_7000_10-slot:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_7000_18-slot:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_7000_4-slot:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_7000_9-slot:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_7700_10-slot:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_7700_18-slot:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_7700_2-slot:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:nexus_7700_6-slot:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:firepower_extensible_operating_system:r231:*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:r231:*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_9300:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:12.3\(1e\):*:*:*:*:*:*:*
cpe:2.3:h:cisco:firepower_9300:-:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools