Incorrect authorization in BlueZ - CVE-2021-3658
Published: November 22, 2023
Vulnerability identifier: #VU83408
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-3658
CWE-ID: CWE-863
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
BlueZ
BlueZ
Software vendor:
BlueZ Project
BlueZ Project
Description
The vulnerability allows an attacker to gain access to sensitive information.
The vulnerability exists due to bluetoothd incorrectly saves the adapters' discoverable status
when a device is powered down, and restores it when powered up. An attacker with physical proximity to device can gain access to sensitive information.
Remediation
Install updates from vendor's website.
External links
- https://gitlab.gnome.org/GNOME/gnome-bluetooth/-/issues/89
- https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=b497b5942a8beb8f89ca1c359c54ad67ec843055
- https://bugzilla.redhat.com/show_bug.cgi?id=1984728
- https://github.com/bluez/bluez/commit/b497b5942a8beb8f89ca1c359c54ad67ec843055
- https://security.netapp.com/advisory/ntap-20220407-0002/