CVE-2021-22653 Memory corruption in Tellus Lite V-Simulator and V-Server Lite

High 7.8 Published 27 Jan 2021 Updated 3 Aug 2024

Crafted project files trigger out-of-bounds writes in Tellus Lite V-Simulator, enabling arbitrary code execution for attackers.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2021-22653?

CVE-2021-22653 is a high-severity memory corruption vulnerability in Tellus Lite V-Simulator and V-Server Lite, published on 27 Jan 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Multiple out-of-bounds write issues have been identified in the way the application processes project files, allowing an attacker to craft a special project file that may allow arbitrary code execution on the Tellus Lite V-Simulator and V-Server Lite (versions prior to 4.0.10.0).

Weakness: CWE-787

Which versions are affected by CVE-2021-22653?

It affects 2 products.

Products include Fujielectric V-Server, Fujielectric V-Simulator.

How do I fix CVE-2021-22653?

No fix has been published for CVE-2021-22653 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-22653 being exploited?

There is no known exploitation of CVE-2021-22653 in the wild and no public exploit code.

Sources

Also known as GHSA-r97v-vg2f-w8vp.