Incorrect Authorization Affecting bluez package, versions <5.53-0ubuntu3.4


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.11% (47th percentile)

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  • Snyk IDSNYK-UBUNTU2004-BLUEZ-1534713
  • published28 Jul 2021
  • disclosed2 Mar 2022

Introduced: 28 Jul 2021

CVE-2021-3658  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 bluez to version 5.53-0ubuntu3.4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bluez package and not the bluez package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

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 Scores

version 3.1