CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2020-11868
High (7.5). EPSS 2.1% chance of exploitation in the next 30 days.
ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows an off-path attacker to block unauthenticated synchronization via a server mode packet with a spoofed source IP address, because transmissions are rescheduled even when a packet lacks a valid origin timestamp.
Severity
- EPSS
- 2.1% chance of exploitation in the next 30 days; higher than 81% of CVEs (scores of 2026-10-31)
- CWE
- CWE-346
- Published
- Modified
- Record from
- the NVD, synced
Affected
- debian:debian_linux
- netapp:all_flash_fabric-attached_storage_8300_firmware
- netapp:all_flash_fabric-attached_storage_8700_firmware
- netapp:all_flash_fabric-attached_storage_a400_firmware
- netapp:clustered_data_ontap
- netapp:data_ontap
- netapp:fabric-attached_storage_8300_firmware
- netapp:fabric-attached_storage_8700_firmware
- netapp:fabric-attached_storage_a400_firmware
- netapp:hci_management_node
- netapp:hci_storage_node_firmware
- netapp:solidfire
- netapp:vasa_provider_for_clustered_data_ontap
- netapp:virtual_storage_console
- ntp:ntp
- opensuse:leap
- redhat:enterprise_linux
References
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html
- http://support.ntp.org/bin/view/Main/NtpBug3592
- https://bugzilla.redhat.com/show_bug.cgi?id=1716665
- https://lists.debian.org/debian-lts-announce/2020/05/msg00004.html