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MediumFix available

bluez — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-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
bluez
Affected versions
Not specified
Fixed versions
5.61-1
CVEs
CVE-2021-3658
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 02:01 UTC · Revision 1

Source evidence

DEBIAN-CVE-2021-3658

core-osv · Original source

Published 2 Mar 2022, 23:15 UTC

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.

osv:DEBIAN-CVE-2021-3658

bluez

Fixed versions: 5.61-1

bluez

Fixed versions: 5.61-1

bluez

Fixed versions: 5.61-1

Complete source record
{
  "id": "0207d08ca09c61d79f04dbbbcf0263f716720dd62d96b768c2dac5946cee5758",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-3658",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2021-3658",
    "summary": "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.",
    "evidence": "osv:DEBIAN-CVE-2021-3658",
    "products": [
      {
        "name": {
          "value": "bluez",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.61-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "bluez",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.61-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "bluez",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.61-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "DEBIAN-CVE-2021-3658",
      "aliases": [
        "DEBIAN-CVE-2021-3658"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5.61-1"
                }
              ]
            }
          ],
          "package": {
            "name": "bluez",
            "purl": "pkg:deb/debian/bluez?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-3658.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5.61-1"
                }
              ]
            }
          ],
          "package": {
            "name": "bluez",
            "purl": "pkg:deb/debian/bluez?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-3658.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "5.61-1"
                }
              ]
            }
          ],
          "package": {
            "name": "bluez",
            "purl": "pkg:deb/debian/bluez?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-3658.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-23T18:05:22.856299541Z",
      "provider": "osv",
      "upstream": [
        "CVE-2021-3658"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2021-3658"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2021-3658",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 424348,
  "published_at": "2022-03-02T23:15:08.787+00:00"
}