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Status published
Medium
CVE-2020-11868
ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows...
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://lists.debian.org/debian-lts-announce/2020/05/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html
- https://security.gentoo.org/glsa/202007-12
- https://www.oracle.com//security-alerts/cpujul2021.html
- http://support.ntp.org/bin/view/Main/NtpBug3592
- https://bugzilla.redhat.com/show_bug.cgi?id=1716665
- https://security.netapp.com/advisory/ntap-20200424-0002/
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Affected Vendor
Affected Software
ntp, enterprise linux, data ontap, hci management node, solidfire, vasa provider for clustered data ontap, virtual storage console, clustered data ontap, hci storage node firmware, fabric-attached storage 8300 firmware, fabric-attached storage 8700 firmware, fabric-attached storage a400 firmware, all flash fabric-attached storage 8300 firmware, all flash fabric-attached storage 8700 firmware, all flash fabric-attached storage a400 firmware, debian linux, leap
Vulnerable Versions:
0, 4.3.98, 4.2.8, 7.0, 7.2, 8.0, 15.1, 15.2
Timeline
Official Publish:
April 17th, 2020
Last Modified:
May 5th, 2025
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.0/AC:H/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.