CVE-2018-0395

CVSS V2 Low 2.9 CVSS V3 Medium 5.3
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.
Overview
  • CVE ID
  • CVE-2018-0395
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2018-10-17T19:29:00
  • Last Modified Date
  • 2023-04-20T17:17:59
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:cisco:fxos:6.0\(4\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:fxos:6.1\(3\)s2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:nx-os:6.0\(4\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:nx-os:6.1\(3\)s2:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_7000_10-slot:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_7000_18-slot:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_7000_4-slot:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_7000_9-slot:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_7700_10-slot:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_7700_18-slot:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_7700_2-slot:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_7700_6-slot:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:fxos:r231:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:nx-os:r231:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:firepower_9300:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:fxos:12.3\(1e\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:nx-os:12.3\(1e\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:firepower_9300:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:cisco:fxos:3.2\(3d\)c:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:nx-os:3.2\(3d\)c:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:ucs:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:A/AC:M/Au:N/C:N/I:N/A:P
  • Access Vector
  • ADJACENT_NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 2.9
  • Severity
  • LOW
  • Exploitability Score
  • 5.5
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • ADJACENT_NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.3
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.6
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-fxnx-os-dos Vendor Advisory
http://www.securitytracker.com/id/1041919 Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/105674 Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-0395
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0395
History
Created Old Value New Value Data Type Notes
2022-05-10 17:07:12 Added to TrackCVE
2022-12-03 13:35:05 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-03 13:35:05 2018-10-17T19:29Z 2018-10-17T19:29:00 CVE Published Date updated
2022-12-03 13:35:05 2019-10-09T23:31:58 CVE Modified Date updated
2022-12-03 13:35:05 Modified Vulnerability Status updated
2023-04-20 17:20:02 2023-04-20T17:17:59 CVE Modified Date updated