NTP: Origin Validation Error (CVE-2020-11868)
5
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
04/17/2020
02/28/2023
02/23/2023
03/01/2023
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.
Solution(s)
- ntp-upgrade-4_3_100
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