gpsd before commit dc966aa contains a heap-based out-of-bounds write vulnerability in the drivers/driver_nmea2000.c file. The hnd_129540 function, which handles NMEA2000 PGN 129540 (GNSS Satellites in View) packets, fails to validate the user-supplied satellite count against the size of the skyview array (184 elements). This allows an attacker to write beyond the bounds of the array by providing a satellite count up to 255, leading to memory corruption, Denial of Service (DoS), and potentially arbitrary code execution.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade gpsd-minimalUpgrade gpsd-minimal-clients | Jan 22, 2026 | Jan 19, 2026 |
| Debian | — | Upgrade gpsd | Jan 20, 2026 | Jan 20, 2026 |
| Oracle_linux | — | Upgrade python3-gpsdUpgrade gpsd-clientsUpgrade gpsd-minimal-clientsUpgrade gpsdUpgrade gpsd-minimal | Jan 20, 2026 | Jan 2, 2026 |
| Redhat_linux | — | Upgrade gpsdUpgrade python3-gpsd-debuginfoUpgrade gpsd-minimal-clients-debuginfoUpgrade gpsd-clientsUpgrade gpsd-minimal-clientsUpgrade gpsd-debuginfoUpgrade gpsd-minimal-debugsourceUpgrade gpsd-clients-debuginfoUpgrade gpsd-debugsourceUpgrade python3-gpsdUpgrade gpsd-minimalUpgrade gpsd-minimal-debuginfo | Jan 20, 2026 | Jan 2, 2026 |
| Rocky_linux | — | Upgrade gpsd-minimal-clients-debuginfoUpgrade gpsd-clients-debuginfoUpgrade gpsd-minimal-debugsourceUpgrade gpsdUpgrade python3-gpsd-debuginfoUpgrade gpsd-debuginfoUpgrade python3-gpsdUpgrade gpsd-minimalUpgrade gpsd-clientsUpgrade gpsd-minimal-debuginfoUpgrade gpsd-debugsourceUpgrade gpsd-minimal-clients | Jan 22, 2026 | Jan 20, 2026 |
| Ubuntu | — | Upgrade gpsdUpgrade libgps28Upgrade libgps30t64 | Jan 9, 2026 | Jan 2, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Jan 2, 2026 |
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