CVE-2021-3658
MEDIUM
Published Mar 2, 20224y ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Published Mar 2, 2022 4y ago
Last Modified Jun 17, 2026 2w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Attack Vector Adjacent
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None
Threat Intelligence
No active exploitation signals — not in CISA KEV and no EPSS score yet.
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-863 Incorrect Authorization Authorization
Affected Products 2
| Vendor | Product | Version | Range |
|---|---|---|---|
| bluez | bluez | * | <5.61 |
| fedoraproject | fedora | 34 | any |
References 6
- bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=1984728
- git.kernel.org https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=b497b5942a8beb8f89ca1c359c54ad67ec843055
- github.com https://github.com/bluez/bluez/commit/b497b5942a8beb8f89ca1c359c54ad67ec843055
- gitlab.gnome.org https://gitlab.gnome.org/GNOME/gnome-bluetooth/-/issues/89
- lists.debian.org https://lists.debian.org/debian-lts-announce/2024/09/msg00022.html
- security.netapp.com https://security.netapp.com/advisory/ntap-20220407-0002/
Remediation
- bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=1984728
- git.kernel.org https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=b497b5942a8beb8f89ca1c359c54ad67ec843055
- github.com https://github.com/bluez/bluez/commit/b497b5942a8beb8f89ca1c359c54ad67ec843055
- gitlab.gnome.org https://gitlab.gnome.org/GNOME/gnome-bluetooth/-/issues/89