UBUNTU-CVE-2021-3658

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Source
https://ubuntu.com/security/CVE-2021-3658
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3658.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-3658
Upstream
Downstream
Related
Published
2021-07-28T00:00:00Z
Modified
2025-07-16T07:42:58.596466Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:20.04:LTS / bluez

Package

Name
bluez
Purl
pkg:deb/ubuntu/bluez@5.53-0ubuntu3.4?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.53-0ubuntu3.4

Affected versions

5.*

5.50-0ubuntu4
5.51-0ubuntu1
5.51-0ubuntu2
5.52-0ubuntu1
5.52-0ubuntu2
5.53-0ubuntu1
5.53-0ubuntu2
5.53-0ubuntu3
5.53-0ubuntu3.1
5.53-0ubuntu3.2
5.53-0ubuntu3.3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "bluetooth",
            "binary_version": "5.53-0ubuntu3.4"
        },
        {
            "binary_name": "bluez",
            "binary_version": "5.53-0ubuntu3.4"
        },
        {
            "binary_name": "bluez-cups",
            "binary_version": "5.53-0ubuntu3.4"
        },
        {
            "binary_name": "bluez-dbg",
            "binary_version": "5.53-0ubuntu3.4"
        },
        {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.53-0ubuntu3.4"
        },
        {
            "binary_name": "bluez-obexd",
            "binary_version": "5.53-0ubuntu3.4"
        },
        {
            "binary_name": "bluez-tests",
            "binary_version": "5.53-0ubuntu3.4"
        },
        {
            "binary_name": "libbluetooth-dev",
            "binary_version": "5.53-0ubuntu3.4"
        },
        {
            "binary_name": "libbluetooth3",
            "binary_version": "5.53-0ubuntu3.4"
        },
        {
            "binary_name": "libbluetooth3-dbg",
            "binary_version": "5.53-0ubuntu3.4"
        }
    ]
}

Ubuntu:22.04:LTS / bluez

Package

Name
bluez
Purl
pkg:deb/ubuntu/bluez@5.62-0ubuntu1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.62-0ubuntu1

Affected versions

5.*

5.60-0ubuntu2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "bluetooth",
            "binary_version": "5.62-0ubuntu1"
        },
        {
            "binary_name": "bluez",
            "binary_version": "5.62-0ubuntu1"
        },
        {
            "binary_name": "bluez-cups",
            "binary_version": "5.62-0ubuntu1"
        },
        {
            "binary_name": "bluez-cups-dbgsym",
            "binary_version": "5.62-0ubuntu1"
        },
        {
            "binary_name": "bluez-dbgsym",
            "binary_version": "5.62-0ubuntu1"
        },
        {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.62-0ubuntu1"
        },
        {
            "binary_name": "bluez-hcidump-dbgsym",
            "binary_version": "5.62-0ubuntu1"
        },
        {
            "binary_name": "bluez-meshd",
            "binary_version": "5.62-0ubuntu1"
        },
        {
            "binary_name": "bluez-meshd-dbgsym",
            "binary_version": "5.62-0ubuntu1"
        },
        {
            "binary_name": "bluez-obexd",
            "binary_version": "5.62-0ubuntu1"
        },
        {
            "binary_name": "bluez-obexd-dbgsym",
            "binary_version": "5.62-0ubuntu1"
        },
        {
            "binary_name": "bluez-tests",
            "binary_version": "5.62-0ubuntu1"
        },
        {
            "binary_name": "bluez-tests-dbgsym",
            "binary_version": "5.62-0ubuntu1"
        },
        {
            "binary_name": "libbluetooth-dev",
            "binary_version": "5.62-0ubuntu1"
        },
        {
            "binary_name": "libbluetooth3",
            "binary_version": "5.62-0ubuntu1"
        },
        {
            "binary_name": "libbluetooth3-dbgsym",
            "binary_version": "5.62-0ubuntu1"
        }
    ]
}