CVE-2023-2683 Connection update while closing connection may lead to denial-of-service

Medium 5.3 Published 15 Jun 2023 Updated 11 Dec 2024

An attacker can cause a denial of service in the EFR32 Bluetooth LE stack by sending invalid pairing messages, preventing legitimate connections.

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

What is CVE-2023-2683?

CVE-2023-2683 is a medium-severity denial of service vulnerability in silabs.com Bluetooth SDK, published on 15 Jun 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A memory leak in the EFR32 Bluetooth LE stack 5.1.0 through 5.1.1 allows an attacker to send an invalid pairing message and cause future legitimate connection attempts to fail. A reset of the device immediately clears the error.

Weakness: CWE-400, CWE-401

Which versions are affected by CVE-2023-2683?

It affects 1 product.

Products include Silabs Bluetooth Low Energy Software Development Kit.

How do I fix CVE-2023-2683?

No fix has been published for CVE-2023-2683 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-2023-2683 being exploited?

There is no known exploitation of CVE-2023-2683 in the wild and no public exploit code.

Sources

Also known as GHSA-xgxr-3384-47xm.