[LINK] A bug is about to confuse a lot of computers by turning back time 20 years

[Kim Holburn]

https://blog.malwarebytes.com/awareness/2021/10/a-bug-is-about-to-confuse-a-lot-of-computers-by-turning-back-time-20-years/

> The Cybersecurity & Infrastructure Security Agency (CISA) has issued a 
> <https://us-cert.cisa.gov/ncas/current-activity/2021/10/21/gps-daemon-gpsd-rollover-bug>warning 
> <https://us-cert.cisa.gov/ncas/current-activity/2021/10/21/gps-daemon-gpsd-rollover-bug> to Critical Infrastructure (CI) owners 
> and operators, and other users who get the time from GPS, about a GPS Daemon (GPSD) bug in GPSD versions 3.20 through 3.22.
...

>
>       What’s the bug now?
>
> Alongside telling you where in space you are, the Global Positioning System (GPS) can also tell you where in time you are. To do 
> this, it keeps a count of the number of weeks since January 5, 1980. The main civil GPS signal broadcasts the GPS week number 
> using a 10-bit code with a maximum value of 1,023 weeks. This means every 19.7 years, the GPS week number in the code rolls over 
> to zero.
>
> GPSD is a GPS service daemon for Linux, OpenBSD, Mac OS X, and Windows. It collects data from GPS receivers and makes that data 
> accessible to computers, which can query it on TCP port 2947. It can be found on Android phones, drones, robot submarines, 
> driverless cars, manned military equipment, and all manner of other embedded systems.
>


-- 
Kim Holburn
IT Network & Security Consultant
+61 404072753
mailto:kim at holburn.net   aim://kimholburn
skype://kholburn  - PGP Public Key on request