CVE-2018-0309

CVSS V2 Medium 6.8 CVSS V3 High 7.7
Description
A vulnerability in the implementation of a specific CLI command and the associated Simple Network Management Protocol (SNMP) MIB for Cisco NX-OS (in standalone NX-OS mode) on Cisco Nexus 3000 and 9000 Series Switches could allow an authenticated, remote attacker to exhaust system memory on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to the incorrect implementation of the CLI command, resulting in a failure to free all allocated memory upon completion. An attacker could exploit this vulnerability by authenticating to the affected device and repeatedly issuing a specific CLI command or sending a specific SNMP poll request for a specific Object Identifier (OID). A successful exploit could allow the attacker to cause the IP routing process to restart or to cause a device reset, resulting in a DoS condition. Cisco Bug IDs: CSCvf23136.
Overview
  • CVE ID
  • CVE-2018-0309
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2018-06-21T11:29:00
  • Last Modified Date
  • 2019-10-09T23:31:43
Weakness Enumerations
CWE URL
CWE-400 http://cwe.mitre.org/data/definitions/400.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:cisco:nx-os:7.0\(3\)i5\(2\):*:*:*:*:*:*:* 1 OR
cpe:2.3:o:cisco:nx-os:7.0\(3\)i6\(1\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_3016:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3048:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3064:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3064-t:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_31108pc-v:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_31108tc-v:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_31128pq:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3132q:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3132q-v:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3132q-xl:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3164q:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3172:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3172pq-xl:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3172tq:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3172tq-32t:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3172tq-xl:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3232c:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_3264q:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9000v:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_92160yc-x:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_92300yc:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_92304qc:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9236c:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9272q:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93108tc-ex:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93180lc-ex:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93180yc-ex:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9372px-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9372tx-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9504:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9516:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:S/C:N/I:N/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 6.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.7
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.1
  • Impact Score
  • 4
References
Reference URL Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-n3k-n9k-clisnmp Vendor Advisory
http://www.securitytracker.com/id/1041169 Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-0309
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0309
History
Created Old Value New Value Data Type Notes
2022-05-10 17:07:27 Added to TrackCVE
2022-12-03 08:18:28 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-03 08:18:28 2018-06-21T11:29Z 2018-06-21T11:29:00 CVE Published Date updated
2022-12-03 08:18:28 2019-10-09T23:31:43 CVE Modified Date updated
2022-12-03 08:18:28 Modified Vulnerability Status updated