CVE-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 (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.

Published : 2019-08-30 09:15 Updated : 2019-10-09 23:48

7.8
CVSS Score More info
Score 7.8 / 10
7.8
Vendor Product Version URI
Cisco Nx-os 6.0%282%29a8 cpe:/o:cisco:nx-os:6.0%282%29a8
Cisco Nx-os 6.0%282%29a8%289.7%29 cpe:/o:cisco:nx-os:6.0%282%29a8%289.7%29
Cisco Nx-os 6.0%282%29u6 cpe:/o:cisco:nx-os:6.0%282%29u6
Cisco Nx-os 6.2 cpe:/o:cisco:nx-os:6.2
Cisco Nx-os 7.0%283%29f cpe:/o:cisco:nx-os:7.0%283%29f
Cisco Nx-os 7.0%283%29i cpe:/o:cisco:nx-os:7.0%283%29i
Cisco Nx-os 7.0%283%29i7 cpe:/o:cisco:nx-os:7.0%283%29i7
Cisco Nx-os 7.1%284%29 cpe:/o:cisco:nx-os:7.1%284%29
Cisco Nx-os 7.1%284%29n1%281%29 cpe:/o:cisco:nx-os:7.1%284%29n1%281%29
Cisco Nx-os 7.1%285%29 cpe:/o:cisco:nx-os:7.1%285%29
Cisco Nx-os 7.2 cpe:/o:cisco:nx-os:7.2
Cisco Nx-os 7.3 cpe:/o:cisco:nx-os:7.3
Cisco Nx-os 7.3%282%29d1%281%29 cpe:/o:cisco:nx-os:7.3%282%29d1%281%29
Cisco Nx-os 8.0 cpe:/o:cisco:nx-os:8.0
Cisco Nx-os 8.1 cpe:/o:cisco:nx-os:8.1
Cisco Nx-os 8.2 cpe:/o:cisco:nx-os:8.2
Cisco Nx-os 8.3 cpe:/o:cisco:nx-os:8.3
Cisco Nx-os 8.3%282%29s5 cpe:/o:cisco:nx-os:8.3%282%29s5
Cisco Nx-os 9.2 cpe:/o:cisco:nx-os:9.2
Cisco Nx-os 9.2%281%29 cpe:/o:cisco:nx-os:9.2%281%29
  1. Cisco (1) Search CVE
    1. Nx-os (20) Search CVE
      1. 6.0%282%29a8
      2. 6.0%282%29a8%289.7%29
      3. 6.0%282%29u6
      4. 6.2
      5. 7.0%283%29f
      6. 7.0%283%29i
      7. 7.0%283%29i7
      8. 7.1%284%29
      9. 7.1%284%29n1%281%29
      10. 7.1%285%29
      11. 7.2
      12. 7.3
      13. 7.3%282%29d1%281%29
      14. 8.0
      15. 8.1
      16. 8.2
      17. 8.3
      18. 8.3%282%29s5
      19. 9.2
      20. 9.2%281%29

CWE

ID Name Description Links
CWE-399 Resource Management Errors Weaknesses in this category are related to improper management of system resources. CVE

History of changes

Date Event
2019-09-05 13:48
2019-08-30 09:15

New CVE