CVE-2025-67269

CVE-2025-67269 describes an integer underflow in gpsd/packet.c:nextstate() during NAVCOM packet parsing. The payload length is computed as lexer->length = (size_t)c - 4 without validating that c >= 4, causing an unsigned underflow to a very large value and a loop that can exhaust CPU (DoS)....

CVE-2025-67268

gpsd contains a heap-based out-of-bounds write in drivers/driver_nmea2000.c (PGN 129540 handling). The hnd_129540 function validates the satellite count against a 184-element skyview array, but an input satellite count up to 255 can overflow the array, causing memory corruption, DoS, and potentia...