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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
A vulnerability in the Link Layer Discovery Protocol (LLDP) message parser of Cisco IOS Software and Cisco IOS XE Software could allow an attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. This vulnerability is due to improper initialization of a buffer. An attacker could exploit this vulnerability via any of the following methods: An authenticated, remote attacker could access the LLDP neighbor table via either the CLI or SNMP while the device is in a specific state. An unauthenticated, adjacent attacker could corrupt the LLDP neighbor table by injecting specific LLDP frames into the network and then waiting for an administrator of the device or a network management system (NMS) managing the device to retrieve the LLDP neighbor table of the device via either the CLI or SNMP. An authenticated, adjacent attacker with SNMP read-only credentials or low privileges on the device CLI could corrupt the LLDP neighbor table by injecting specific LLDP frames into the network and then accessing the LLDP neighbor table via either the CLI or SNMP. A successful exploit could allow the attacker to cause the affected device to crash, resulting in a reload of the device.
Metrics
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AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:isr_1000:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100-4g\/6g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100-4p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100-8p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1101:-:*:*:*:*:
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
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:-
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
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:-
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:catalyst_3850:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3850-12s-e:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3850-12s-s:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3850-12x48u:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3850-12xs-e:-:*:*:*:*:*:*:*
Removed
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:catalyst_9200:-:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:catalyst_9300:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9300-24p-a:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9300-24p-e:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9300-24s-a:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9300-24s-e:-:*:*:*:*:*:*:*
Removed
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:catalyst_9400:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9407r:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9410r:-:*:*:*:*:*:*:*
Removed
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:catalyst_9500:-:*:*:*:*:*:*:*
Removed
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:catalyst_9600:-:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:catalyst_9800:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9800-40:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9800-80:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9800-cl:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9800-l:-:*:*:*:*:*:*:*
cpe:2.3:h:ci
Removed
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:csr_1000v:-:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:isr_1000:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100-4g\/6g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100-4p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100-8p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1101:-:*:*:*:*:
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:isr_4000:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_4221:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_4321:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_4331:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_4351:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_4431:-:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
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:-
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:catalyst_3850:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3850-12s-e:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3850-12s-s:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3850-12x48u:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_3850-12xs-e:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:catalyst_9200:-:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:catalyst_9300:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9300-24p-a:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9300-24p-e:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9300-24s-a:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9300-24s-e:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:catalyst_9400:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9407r:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9410r:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:catalyst_9500:-:*:*:*:*:*:*:*
Added
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:catalyst_9600:-:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:catalyst_9800:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9800-40:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9800-80:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9800-cl:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:catalyst_9800-l:-:*:*:*:*:*:*:*
cpe:2.3:h:ci
Added
CPE Configuration
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:csr_1000v:-:*:*:*:*:*:*:*
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:isr_1000:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100-4g\/6g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100-4p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100-8p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1101:-:*:*:*:*:
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:isr_1000:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100-4g\/6g:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100-4p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1100-8p:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_1101:-:*:*:*:*:
AND
OR
*cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
*cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:* versions up to (including) 16.12.3
OR
cpe:2.3:h:cisco:isr_4000:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_4221:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_4321:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_4331:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_4351:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:isr_4431:-:*:*:*:*:*:*:*
Added
CVSS V2
NIST (AV:N/AC:L/Au:S/C:N/I:N/A:C)
Added
CVSS V3.1
NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Added
CWE
NIST CWE-665
Changed
Reference Type
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-lldp-dos-sBnuHSjT No Types Assigned