CVE-2022-28655 Missing authorization in Apport

High 7.1 Published 4 Jun 2024 Updated 27 Oct 2024

Attackers can create arbitrary TCP D-Bus connections via is_closing_session, potentially leading to code execution or privilege escalation in Ubuntu systems.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2022-28655?

CVE-2022-28655 is a high-severity missing authorization vulnerability in Canonical Ubuntu Linux, published on 4 Jun 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

is_closing_session() allows users to create arbitrary tcp dbus connections

Weakness: CWE-770

Which versions are affected by CVE-2022-28655?

It affects 2 products.

Products include Apport Project Apport, Canonical Ubuntu Linux.

How do I fix CVE-2022-28655?

Apply the vendor's patch.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2022-28655 being exploited?

There is no known exploitation of CVE-2022-28655 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as GHSA-8jm9-f4h8-qchf, UBUNTU-CVE-2022-28655.