gpsd is a service daemon that mediates access to a GPS sensor connected to the host computer by serial or USB interface, making its data on the location/course/velocity of the sensor available to be queried on TCP port 2947 of the host computer. With gpsd, multiple GPS client applications (such as navigational and war-driving software) can share access to a GPS without contention or loss of data. Also, gpsd responds to queries with a format that is substantially easier to parse than NMEA 0183.
Security Fix(es):
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). The parser then enters a loop attempting to consume this massive number of bytes, causing 100% CPU utilization and a Denial of Service (DoS) condition.(CVE-2025-67269)
{
"severity": "High"
}{
"x86_64": [
"gpsd-3.25-3.oe2403sp4.x86_64.rpm",
"gpsd-clients-3.25-3.oe2403sp4.x86_64.rpm",
"gpsd-debuginfo-3.25-3.oe2403sp4.x86_64.rpm",
"gpsd-debugsource-3.25-3.oe2403sp4.x86_64.rpm",
"gpsd-devel-3.25-3.oe2403sp4.x86_64.rpm",
"gpsd-libs-3.25-3.oe2403sp4.x86_64.rpm",
"gpsd-qt-3.25-3.oe2403sp4.x86_64.rpm",
"gpsd-qt-devel-3.25-3.oe2403sp4.x86_64.rpm",
"gpsd-xclients-3.25-3.oe2403sp4.x86_64.rpm",
"python3-gpsd-3.25-3.oe2403sp4.x86_64.rpm"
],
"src": [
"gpsd-3.25-3.oe2403sp4.src.rpm"
],
"aarch64": [
"gpsd-3.25-3.oe2403sp4.aarch64.rpm",
"gpsd-clients-3.25-3.oe2403sp4.aarch64.rpm",
"gpsd-debuginfo-3.25-3.oe2403sp4.aarch64.rpm",
"gpsd-debugsource-3.25-3.oe2403sp4.aarch64.rpm",
"gpsd-devel-3.25-3.oe2403sp4.aarch64.rpm",
"gpsd-libs-3.25-3.oe2403sp4.aarch64.rpm",
"gpsd-qt-3.25-3.oe2403sp4.aarch64.rpm",
"gpsd-qt-devel-3.25-3.oe2403sp4.aarch64.rpm",
"gpsd-xclients-3.25-3.oe2403sp4.aarch64.rpm",
"python3-gpsd-3.25-3.oe2403sp4.aarch64.rpm"
]
}