Incorrect authorization in BlueZ - CVE-2021-3658
Published: November 22, 2023
Vulnerability identifier: #VU83408
CSH Severity: Low
CVSS v4.0: 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
Vendor: BlueZ Project
Affected software:
BlueZ
BlueZ
Detailed vulnerability 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.
How to mitigate CVE-2021-3658
Install updates from vendor's website.
Sources
- 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/