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Ubuntu Security Notice USN-6963-1
August 15, 2024

gnome-shell vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

GNOME Shell could allow unintended access to network services.

Software Description:
- gnome-shell: graphical shell for the GNOME desktop

Details:

It was discovered that GNOME Shell incorrectly opened the portal helper
automatically when detecting a captive network portal. A remote attacker
could possibly use this issue to load arbitrary web pages containing
JavaScript, leading to resource consumption or other attacks.

Update instructions:

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

Ubuntu 24.04 LTS
  gnome-shell                     46.0-0ubuntu6~24.04.3

Ubuntu 22.04 LTS
  gnome-shell                     42.9-0ubuntu2.2

Ubuntu 20.04 LTS
  gnome-shell                     3.36.9-0ubuntu0.20.04.4

After a standard system update you need to restart your session to make all
the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-6963-1
  CVE-2024-36472

Package Information:
  https://launchpad.net/ubuntu/+source/gnome-shell/46.0-0ubuntu6~24.04.3
  https://launchpad.net/ubuntu/+source/gnome-shell/42.9-0ubuntu2.2
  https://launchpad.net/ubuntu/+source/gnome-shell/3.36.9-0ubuntu0.20.04.4

Attachment: OpenPGP_signature.asc
Description: OpenPGP digital signature



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