CVE-2025-67268

Name	CVE-2025-67268
Description	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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-4441-1
Debian Bugs	1124800

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
gpsd (PTS)	bullseye	3.22-4	vulnerable
	bullseye (security)	3.22-4+deb11u1	fixed
	bookworm	3.22-4.1	vulnerable
	trixie	3.25-5	vulnerable
	forky, sid	3.27.5-0.1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
gpsd	source	bullseye	3.22-4+deb11u1		DLA-4441-1
gpsd	source	(unstable)	3.27.5-0.1			1124800

Notes

[trixie] - gpsd <no-dsa> (Minor issue)
[bookworm] - gpsd <no-dsa> (Minor issue)
https://github.com/Jaenact/gspd_cve/blob/main/CVE-2025-67268/README.md
Fixed by: https://gitlab.com/gpsd/gpsd/-/commit/dc966aa74c075d0a6535811d98628625cbfbe3f4 (release-3.27.1)