Ubuntu Security Notices
USN-6395-1

USN-6395-1: GNOME Shell vulnerability

Publication date

21 September 2023

Overview

GNOME Shell could be made to expose sensitive information.

Releases

23.04

Packages

gnome-shell - graphical shell for the GNOME desktop

Details

Mickael Karatekin discovered that GNOME Shell incorrectly allowed the
screenshot tool to view open windows when a session was locked. A local
attacker could possibly use this issue to obtain sensitive information.

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release	Package Version
23.04 lunar	gnome-shell – 44.3-0ubuntu1.1

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References

CVE-2023-43090

CVE-2023-43090