{"schemaVersion":3,"id":"CVE-2025-67269","aliases":["UBUNTU-CVE-2025-67269","DEBIAN-CVE-2025-67269"],"status":"published","duplicateOf":null,"title":null,"description":"An integer underflow vulnerability exists in the `nextstate()` function in `gpsd/packet.c` of gpsd versions prior to commit `ffa1d6f40bca0b035fc7f5e563160ebb67199da7`. When parsing a NAVCOM packet, the payload length is calculated using `lexer->length = (size_t)c - 4` without checking if the input byte `c` is less than 4. This results in an unsigned integer underflow, setting `lexer->length` to a very large value (near `SIZE_MAX`). 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