CVE-2017-8288
Description
gnome-shell 3.22 through 3.24.1 mishandles extensions that fail to reload, which can lead to leaving extensions enabled in the lock screen. With these extensions, a bystander could launch applications (but not interact with them), see information from the extensions (e.g., what applications you have opened or what music you were playing), or even execute arbitrary commands. It all depends on what extensions a user has enabled. The problem is caused by lack of exception handling in js/ui/extensionSystem.js.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 3.22.3-3 |
| debian | bullseye | fixed | 3.22.3-3 |
| debian | forky | fixed | 3.22.3-3 |
| debian | sid | fixed | 3.22.3-3 |
| debian | trixie | fixed | 3.22.3-3 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| gnome | gnome-shell | 3.22.0 | |
| gnome | gnome-shell | 3.22.1 | |
| gnome | gnome-shell | 3.22.2 | |
| gnome | gnome-shell | 3.22.3 | |
| gnome | gnome-shell | 3.23.1 | |
| gnome | gnome-shell | 3.23.2 | |
| gnome | gnome-shell | 3.23.3 | |
| gnome | gnome-shell | 3.23.90 | |
| gnome | gnome-shell | 3.23.91 | |
| gnome | gnome-shell | 3.23.92 | |
| gnome | gnome-shell | 3.24.0 | |
| gnome | gnome-shell | 3.24.1 | |
References
- http://www.securityfocus.com/bid/98070
- https://bugs.kali.org/view.php?id=2513
- https://bugzilla.gnome.org/show_bug.cgi?id=781728
- https://github.com/EasyScreenCast/EasyScreenCast/issues/46
- https://github.com/GNOME/gnome-shell/commit/ff425d1db7082e2755d2a405af53861552acf2a1
- https://www.suse.com/security/cve/CVE-2017-8288.html
- https://security-tracker.debian.org/tracker/CVE-2017-8288
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.