CVE-2019-1967
published 2019-08-30CVE-2019-1967: 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…
PriorityP342high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.97%
78.3th percentile
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
22 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_nx-os_software | >= unspecified < 8.3(2) | 8.3(2) |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
| cisco | nx-os | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv3.08.6HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
nvdv2.07.8HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
vendor_cisco8.6HIGH
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Cisco
Cisco NX-OS Software Network Time Protocol Denial of Service Vulnerability
vendor_cisco·2019-08-28·CVSS 8.6
CVE-2019-1967 [HIGH] CWE-400 Cisco NX-OS Software Network Time Protocol Denial of Service Vulnerability
Cisco NX-OS Software Network Time Protocol Denial of Service Vulnerability
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 defa
Cisco
Cisco NX-OS Software Network Time Protocol Denial of Service Vulnerability
vendor_cisco·CVSS 3.0
CVE-2019-1967 Cisco NX-OS Software Network Time Protocol Denial of Service Vulnerability
CVE-2019-1967: Cisco NX-OS Software Network Time Protocol Denial of Service Vulnerability
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 e
GHSA
GHSA-hvq8-fxqh-36fv: A vulnerability in the Network Time Protocol (NTP) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial o
ghsa_unreviewed·2022-05-24
CVE-2019-1967 [HIGH] GHSA-hvq8-fxqh-36fv: A vulnerability in the Network Time Protocol (NTP) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial o
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2019-08-30
Published