Mickael Karatekin discovered that the GNOME session locking didn't
restrict a keyboard shortcut used for taking screenshots in GNOME
Screenshot which could result in information disclosure.
The oldstable distribution (bullseye) is not affected.
For the stable distribution (bookworm), this problem has been fixed in
version 43.6-1~deb12u2.
We recommend that you upgrade your gnome-shell packages.
For the detailed security status of gnome-shell please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/gnome-shell
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
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