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CVE-2021-3658

Date: March 2, 2022

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.

Severity Score

Related Resources (10)

https://nvd.nist.gov/vuln/detail/CVE-2021-3658
https://security.netapp.com/advisory/ntap-20220407-0002/
https://security-tracker.debian.org/tracker/CVE-2021-3658
https://bugzilla.redhat.com/show_bug.cgi?id=1984728
https://github.com/bluez/bluez/commit/b497b5942a8beb8f89ca1c359c54ad67ec843055
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3658
https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=b497b5942a8beb8f89ca1c359c54ad67ec843055
https://access.redhat.com/security/cve/CVE-2021-3658
https://gitlab.gnome.org/GNOME/gnome-bluetooth/-/issues/89
https://www.mend.io/vulnerability-database/CVE-2021-3658

Severity Score

Weakness Type (CWE)

Incorrect Authorization

CWE-863

CVSS v3.1

Base Score:
Attack Vector (AV): ADJACENT_NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): ADJACENT
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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