NTP: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (CVE-2016-4955)
4
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
07/05/2016
02/28/2023
02/23/2023
03/01/2023
Description
ntpd in NTP 4.x before 4.2.8p8, when autokey is enabled, allows remote attackers to cause a denial of service (peer-variable clearing and association outage) by sending (1) a spoofed crypto-NAK packet or (2) a packet with an incorrect MAC value at a certain time.
Solution(s)
- ntp-upgrade-4_2_8
- ntp-upgrade-4_3_93
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