CVE-2019-1964

CVSS V2 High 7.8 CVSS V3 High 7.5
Description
A vulnerability in the IPv6 traffic processing of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause an unexpected restart of the netstack process on an affected device. The vulnerability is due to improper validation of IPv6 traffic sent through an affected device. An attacker could exploit this vulnerability by sending a malformed IPv6 packet through an affected device. A successful exploit could allow the attacker to cause a denial of service (DoS) condition while the netstack process restarts. A sustained attack could lead to a reboot of the device.
Overview
  • CVE ID
  • CVE-2019-1964
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2019-08-28T19:15:10
  • Last Modified Date
  • 2019-10-09T23:48:41
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:nx-os:*:*:*:*:*:*:*:* 1 OR 8.1 8.2\(3\)
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* 1 OR 8.3 8.4
cpe:2.3:h:cisco:7000_10-slot:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:7000_18-slot:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:7000_4-slot:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:7000_9-slot:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:7700_10-slot:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:7700_18-slot:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:7700_2-slot:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:7700_6-slot:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:n77-f312ck-26:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:n77-f324fq-25:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:n77-f348xp-23:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:n77-f430cq-36:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:n77-m312cq-26l:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:n77-m324fq-25l:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:n77-m348xp-23l:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:n7k-f248xp-25e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:n7k-f306ck-25:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:n7k-f312fq-25:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:n7k-m202cf-22l:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:n7k-m206fq-23l:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:n7k-m224xp-23l:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:n7k-m324fq-25l:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:n7k-m348xp-25l:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_7000_supervisor_1:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_7000_supervisor_2:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_7000_supervisor_2e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_7700_supervisor_2e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_7700_supervisor_3e:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.8
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190828-nxos-ipv6-dos Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-1964
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1964
History
Created Old Value New Value Data Type Notes
2022-05-10 17:02:50 Added to TrackCVE
2022-12-04 02:03:08 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-04 02:03:08 2019-08-28T19:15Z 2019-08-28T19:15:10 CVE Published Date updated
2022-12-04 02:03:08 2019-10-09T23:48:41 CVE Modified Date updated
2022-12-04 02:03:08 Modified Vulnerability Status updated