CVE-2022-39177 Denial of service in n/a

High 8.8 Published 2 Sep 2022 Updated 15 Apr 2026

Physically proximate attackers can cause a denial of service in the BlueZ Bluetooth stack by sending malformed audio capabilities.

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

What is CVE-2022-39177?

CVE-2022-39177 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 2 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

BlueZ before 5.59 allows physically proximate attackers to cause a denial of service because malformed and invalid capabilities can be processed in profiles/audio/avdtp.c.

Which versions are affected by CVE-2022-39177?

It affects 3 products.

Products include Bluez Bluez, Canonical Ubuntu Linux, Debian Debian Linux.

How do I fix CVE-2022-39177?

Upgrade to a fixed version.

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-2022-39177 being exploited?

There is no known exploitation of CVE-2022-39177 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-39177, GHSA-9pxq-3hvv-rrf5, UBUNTU-CVE-2022-39177.