CGSIC Bulletin: Network Time Protocol – GPS Daemon Bug

U.S. Coast Guard sent this bulletin at 10/22/2021 04:19 PM EDT

All CGSIC,

NETWORK TIME PROTOCOL - GPS DAEMON BUG

As you may be aware, a potential vulnerability has been identified that may cause a “GPS Week Number Roll-over” type event to occur within systems utilizing Network Timing Protocol Daemon (NTPD) and GPS Daemon (GPSD) software. On October 24^th 2021, A bug in older versions of the software may trigger the system date to roll back to sometime in March 2002. All systems running the most recent software update, version 3.23.1 (released September 21, 2021) should be unaffected.

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