CVE-2024-38394

Name	CVE-2024-38394
Description	Mismatches in interpreting USB authorization policy between GNOME Settings Daemon (GSD) through 46.0 and the Linux kernel's underlying device matching logic allow a physically proximate attacker to access some unintended Linux kernel USB functionality, such as USB device-specific kernel modules and filesystem implementations. NOTE: the GSD supplier indicates that consideration of a mitigation for this within GSD would be in the context of "a new feature, not a CVE."
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)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
gnome-settings-daemon (PTS)	bullseye	3.38.2-1	vulnerable
	bookworm	43.0-4	vulnerable
	trixie	48.1-1	vulnerable
	forky, sid	49.1-2	vulnerable

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
gnome-settings-daemon	source	(unstable)	(unfixed)	unimportant

Notes

https://pulsesecurity.co.nz/advisories/usbguard-bypass
https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/issues/780
https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/issues/780#note_2047914
As per Gnome upstream, consideration of a mitigation for the issue within
gnome-settings-daemon would rather be a new feature but not a vulnerability
fixing. The CVE assignment is disputed upstream with this context.