CVE-2021-3658 Security feature bypass in bluez
Bluez incorrectly restores Bluetooth discoverability after power cycles, potentially exposing the stack to nearby attackers.
- 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-2021-3658?
CVE-2021-3658 is a medium-severity vulnerability in Fedoraproject Fedora, published on 2 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
bluetoothd from bluez incorrectly saves adapters' Discoverable status when a device is powered down, and restores it when powered up. If a device is powered down while discoverable, it will be discoverable when powered on again. This could lead to inadvertent exposure of the bluetooth stack to physically nearby attackers.
Weakness: CWE-863
Which versions are affected by CVE-2021-3658?
It affects 2 products.
Products include Bluez Bluez, Fedoraproject Fedora.
How do I fix CVE-2021-3658?
Apply the vendor's patch.
Is CVE-2021-3658 being exploited?
There is no known exploitation of CVE-2021-3658 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as DEBIAN-CVE-2021-3658, GHSA-839c-8x38-qf59, MGASA-2021-0395, OESA-2021-1370, UBUNTU-CVE-2021-3658.