CVE-2021-2112 Denial of service in VM VirtualBox

Medium 6.0 Published 20 Jan 2021 Updated 26 Sep 2024

A local high-privileged attacker can cause a complete denial of service in Oracle VM VirtualBox by triggering a crash or hang.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-2112?

CVE-2021-2112 is a medium-severity denial of service vulnerability in Oracle Vm Virtualbox, published on 20 Jan 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is Prior to 6.1.18. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. While the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle VM VirtualBox. CVSS 3.1 Base Score 6.0 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H).

Which versions are affected by CVE-2021-2112?

It affects 1 product.

Products include Oracle Vm Virtualbox.

How do I fix CVE-2021-2112?

No fix has been published for CVE-2021-2112 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-2112 being exploited?

There is no known exploitation of CVE-2021-2112 in the wild and no public exploit code.

All Oracle Vm Virtualbox vulnerabilities

Sources

Also known as GHSA-wx62-qwqx-p48q, UBUNTU-CVE-2021-2112.