Vulnerability Details : CVE-2021-3658
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.
Products affected by CVE-2021-3658
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:a:bluez:bluez:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-3658
0.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 46 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-3658
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
3.3
|
LOW | AV:A/AC:L/Au:N/C:P/I:N/A:N |
6.5
|
2.9
|
NIST | |
6.5
|
MEDIUM | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2021-3658
-
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2021-3658
-
https://gitlab.gnome.org/GNOME/gnome-bluetooth/-/issues/89
Device is still discoverable even when gnome bluetooth settings panel is not open (CVE-2021-3658) (#89) · Issues · GNOME / gnome-bluetooth · GitLabIssue Tracking;Patch;Third Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1984728
1984728 – (CVE-2021-3658) CVE-2021-3658 bluez: adapter incorrectly restores Discoverable state after powered downIssue Tracking;Patch;Third Party Advisory
-
https://github.com/bluez/bluez/commit/b497b5942a8beb8f89ca1c359c54ad67ec843055
adapter: Fix storing discoverable setting · bluez/bluez@b497b59 · GitHubPatch;Third Party Advisory
-
https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=b497b5942a8beb8f89ca1c359c54ad67ec843055
bluez.git - Bluetooth protocol stack for LinuxPatch;Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20220407-0002/
CVE-2021-3658 BlueZ Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
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