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cve[email protected]CVE-2019-1967
HistoryAug 30, 2019 - 9:15 a.m.

CVE-2019-1967

2019-08-3009:15:20
CWE-400
CWE-399
web.nvd.nist.gov
34
cisco
nx-os
software
vulnerability
ntp
network time protocol
dos
cve-2019-1967

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.6 High

AI Score

Confidence

High

7.8 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

0.002 Low

EPSS

Percentile

52.5%

A vulnerability in the Network Time Protocol (NTP) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to excessive use of system resources when the affected device is logging a drop action for received MODE_PRIVATE (Mode 7) NTP packets. An attacker could exploit this vulnerability by flooding the device with a steady stream of Mode 7 NTP packets. A successful exploit could allow the attacker to cause high CPU and memory usage on the affected device, which could cause internal system processes to restart or cause the affected device to unexpectedly reload. Note: The NTP feature is enabled by default.

Affected configurations

NVD
Node
cisconx-osMatch6.2
OR
cisconx-osMatch7.3
OR
cisconx-osMatch8.1
OR
cisconx-osMatch8.2
OR
cisconx-osMatch8.3
AND
ciscomds_9000Match-
OR
ciscomds_9100Match-
OR
ciscomds_9140Match-
OR
ciscomds_9200Match-
OR
ciscomds_9500Match-
OR
ciscomds_9700Match-
Node
cisconx-osMatch6.0\(2\)a8\(9.7\)
OR
cisconx-osMatch6.0\(2\)u6
OR
cisconx-osMatch7.0\(3\)i
OR
cisconx-osMatch9.2
OR
cisconx-osMatch9.2\(1\)
AND
cisconexus_3016Match-
OR
cisconexus_3048Match-
OR
cisconexus_3064Match-
OR
cisconexus_3064-tMatch-
OR
cisconexus_31108pc-vMatch-
OR
cisconexus_31108tc-vMatch-
OR
cisconexus_31128pqMatch-
OR
cisconexus_3132c-zMatch-
OR
cisconexus_3132qMatch-
OR
cisconexus_3132q-vMatch-
OR
cisconexus_3132q-xlMatch-
OR
cisconexus_3164qMatch-
OR
cisconexus_3172Match-
OR
cisconexus_3172pq-xlMatch-
OR
cisconexus_3172tqMatch-
OR
cisconexus_3172tq-32tMatch-
OR
cisconexus_3172tq-xlMatch-
OR
cisconexus_3232cMatch-
OR
cisconexus_3264c-eMatch-
OR
cisconexus_3264qMatch-
OR
cisconexus_3408-sMatch-
OR
cisconexus_34180ycMatch-
OR
cisconexus_3432d-sMatch-
OR
cisconexus_3464cMatch-
OR
cisconexus_9000vMatch-
OR
cisconexus_92160yc-xMatch-
OR
cisconexus_92300ycMatch-
OR
cisconexus_92304qcMatch-
OR
cisconexus_92348gc-xMatch-
OR
cisconexus_9236cMatch-
OR
cisconexus_9272qMatch-
OR
cisconexus_93108tc-exMatch-
OR
cisconexus_93108tc-fxMatch-
OR
cisconexus_93120txMatch-
OR
cisconexus_93128txMatch-
OR
cisconexus_93180lc-exMatch-
OR
cisconexus_93180yc-exMatch-
OR
cisconexus_93180yc-fxMatch-
OR
cisconexus_93216tc-fx2Match-
OR
cisconexus_93240yc-fx2Match-
OR
cisconexus_9332cMatch-
OR
cisconexus_9332pqMatch-
OR
cisconexus_93360yc-fx2Match-
OR
cisconexus_9336c-fx2Match-
OR
cisconexus_9336pq_aci_spineMatch-
OR
cisconexus_9348gc-fxpMatch-
OR
cisconexus_9364cMatch-
OR
cisconexus_9372pxMatch-
OR
cisconexus_9372px-eMatch-
OR
cisconexus_9372txMatch-
OR
cisconexus_9372tx-eMatch-
OR
cisconexus_9396pxMatch-
OR
cisconexus_9396txMatch-
Node
cisconx-osMatch6.0\(2\)a8
OR
cisconx-osMatch6.0\(2\)a8\(9.7\)
OR
cisconx-osMatch7.0\(3\)i7
OR
cisconx-osMatch9.2
AND
cisconexus_3524Match-
OR
cisconexus_3524-xMatch-
OR
cisconexus_3524-xlMatch-
OR
cisconexus_3548Match-
OR
cisconexus_3548-xMatch-
OR
cisconexus_3548-xlMatch-
Node
cisconx-osMatch6.0\(2\)a8\(9.7\)
OR
cisconx-osMatch7.0\(3\)f
OR
cisconx-osMatch9.2
OR
cisconx-osMatch9.2\(1\)
AND
cisconexus_36180yc-rMatch-
OR
cisconexus_3636c-rMatch-
OR
cisconexus_9504Match-
OR
cisconexus_9508Match-
OR
cisconexus_9516Match-
Node
cisconx-osMatch7.1\(4\)
OR
cisconx-osMatch7.1\(4\)n1\(1\)
OR
cisconx-osMatch7.1\(5\)
OR
cisconx-osMatch7.2
OR
cisconx-osMatch7.3
AND
cisconexus_5548pMatch-
OR
cisconexus_5548upMatch-
OR
cisconexus_5596tMatch-
OR
cisconexus_5596upMatch-
OR
cisconexus_56128pMatch-
OR
cisconexus_5624qMatch-
OR
cisconexus_5648qMatch-
OR
cisconexus_5672upMatch-
OR
cisconexus_5696qMatch-
OR
cisconexus_6001Match-
OR
cisconexus_6004Match-
Node
cisconx-osMatch6.2
OR
cisconx-osMatch7.2
OR
cisconx-osMatch7.3
OR
cisconx-osMatch7.3\(2\)d1\(1\)
OR
cisconx-osMatch8.0
OR
cisconx-osMatch8.1
OR
cisconx-osMatch8.2
OR
cisconx-osMatch8.3
OR
cisconx-osMatch8.3\(2\)s5
AND
cisconexus_7000Match-
OR
cisconexus_7000_10-slotMatch-
OR
cisconexus_7000_18-slotMatch-
OR
cisconexus_7000_4-slotMatch-
OR
cisconexus_7000_9-slotMatch-
OR
cisconexus_7700Match-
OR
cisconexus_7700_10-slotMatch-
OR
cisconexus_7700_18-slotMatch-
OR
cisconexus_7700_2-slotMatch-
OR
cisconexus_7700_6-slotMatch-

CNA Affected

[
  {
    "product": "Cisco NX-OS Software",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "8.3(2)",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.6 High

AI Score

Confidence

High

7.8 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

0.002 Low

EPSS

Percentile

52.5%

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