CVE-2021-3747 MacOS version of Multipass incorrect owner for application directory

High 8.8 Published 1 Oct 2021 Updated 17 Sep 2024

Incorrect file ownership in the macOS Multipass application directory allows local attackers to escalate privileges.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-3747?

CVE-2021-3747 is a high-severity vulnerability in Canonical Multipass, published on 1 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The MacOS version of Multipass, version 1.7.0, fixed in 1.7.2, accidentally installed the application directory with incorrect owner.

Weakness: CWE-732

Which versions are affected by CVE-2021-3747?

It affects 1 product.

Products include Canonical Multipass.

How do I fix CVE-2021-3747?

No fix has been published for CVE-2021-3747 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-3747 being exploited?

There is no known exploitation of CVE-2021-3747 in the wild and no public exploit code.

Sources

Also known as GHSA-63mg-hhpp-mqfx.