NTP BUG 3380: Off-by-one in Oncore GPS Receiver
Last update: June 27, 2022 20:45 UTC (51d68a4aa)
Summary
Description
There is a fencepost error in a “recovery branch” of the code for the Oncore GPS receiver if the communication link to the ONCORE is weak / distorted and the decoding doesn’t work.
Mitigation
- Upgrade to 4.2.8p10 or later.
- Properly monitor your
ntpd
instances, and auto-restart ntpd
(without -g
) if it stops running.
Credit
This weakness was discovered by Cure53.
Timeline