CVE-2021-1367

CVSS V2 Low 2.9 CVSS V3 Medium 4.3
Description
A vulnerability in the Protocol Independent Multicast (PIM) feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted PIM packet to an affected device. A successful exploit could allow the attacker to cause a traffic loop, resulting in a DoS condition.
Overview
  • CVE ID
  • CVE-2021-1367
  • Assigner
  • ykramarz@cisco.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-02-24T20:15:13
  • Last Modified Date
  • 2021-03-09T19:21:15
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:9.3\(5\):*:*:*:*:*:*:* 1 OR
cpe:2.3:h:cisco:nexus_9000v_switch:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_92160yc-x_switch:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_92300yc_switch:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_92304qc_switch:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_92348gc-x_switch:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9236c_switch:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9272q_switch:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93108tc-ex-24_switch:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93108tc-ex_switch:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93108tc-fx-24:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93108tc-fx_switch:-:*:*:*:*:*:*:* 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_9316d-gx:-:*:*:*:*:*:*:* 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_93180yc-ex-24:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93180yc-fx:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93180yc-fx-24:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93180yc-fx3:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93180yc-fx3s:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93216tc-fx2:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93240yc-fx2:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9332c:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93360yc-fx2:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9336c-fx2:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9336c-fx2-e:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9336pq:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9348gc-fxp:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_93600cd-gx:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9364c:-:*:*:*:*:*:*:* 0 OR
cpe:2.3:h:cisco:nexus_9364c-gx:-:*:*:*:*:*:*:* 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: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
  • 3.1
  • Vector String
  • CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • Attack Vector
  • ADJACENT_NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • LOW
  • Base Score
  • 4.3
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 1.4
References
Reference URL Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-pim-dos-Y8SjMz4 Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-1367
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1367
History
Created Old Value New Value Data Type Notes
2022-05-10 07:20:31 Added to TrackCVE
2022-12-05 22:43:56 psirt@cisco.com ykramarz@cisco.com CVE Assigner updated
2022-12-05 22:43:56 2021-02-24T20:15Z 2021-02-24T20:15:13 CVE Published Date updated
2022-12-05 22:43:56 2021-03-09T19:21:15 CVE Modified Date updated
2022-12-05 22:43:56 Analyzed Vulnerability Status updated