{"id":"CVE-2021-3658","aliases":["DEBIAN-CVE-2021-3658","DLA-3879-1","EUVD-2021-26953","GHSA-839c-8x38-qf59","MGASA-2021-0395","OESA-2021-1370","SUSE-SU-2022:3687-1","SUSE-SU-2022:3691-1","SUSE-SU-2022:3981-1","UBUNTU-CVE-2021-3658","USN-5155-1"],"status":"published","title":"bluetoothd from bluez incorrectly saves adapters' Discoverable status when a device is powered...","description":"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":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00789,"percentile":0.5655,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-863"],"published":"2021-07-28T00:00:00Z","modified":"2026-10-23T18:05:22Z","fixes":[{"ecosystem":"Debian:12","package":"bluez","fixed_in":["5.61-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"bluez","fixed_in":["5.61-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"bluez","fixed_in":["5.61-1"],"sources":["osv"]},{"ecosystem":"Mageia:8","package":"bluez","fixed_in":["5.55-3.2.mga8"],"sources":["osv"]},{"ecosystem":"openEuler:20.03-LTS-SP1","package":"bluez","fixed_in":["5.54-5.oe1"],"sources":["osv"]},{"ecosystem":"openEuler:20.03-LTS-SP2","package":"bluez","fixed_in":["5.54-5.oe1"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"bluez","fixed_in":["5.53-0ubuntu3.4"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"bluez","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.61-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"bluez","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.61-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"bluez","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.61-1"}]}]},{"source":"osv","ecosystem":"Debian:11","package":"bluez","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.55-3.1+deb11u2"}]}],"versions":["5.55-3.1","5.55-3.1+deb11u1"],"bundled":9},{"source":"osv","ecosystem":"Mageia:8","package":"bluez","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.55-3.2.mga8"}]}]},{"source":"osv","ecosystem":"openEuler:20.03-LTS-SP1","package":"bluez","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.54-5.oe1"}]}]},{"source":"osv","ecosystem":"openEuler:20.03-LTS-SP2","package":"bluez","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.54-5.oe1"}]}]},{"source":"osv","ecosystem":"SUSE:Linux 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15.3","package":"bluez","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.55-150300.3.14.1"}]}],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"bluez","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.53-0ubuntu3.4"}]}],"versions":["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"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"bluez","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.48-0ubuntu3.6"}]}],"versions":["5.46-0ubuntu3","5.46-0ubuntu4","5.48-0ubuntu3","5.48-0ubuntu3.1","5.48-0ubuntu3.2","5.48-0ubuntu3.3","5.48-0ubuntu3.4","5.48-0ubuntu3.5"],"bundled":3},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"bluez","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.53-0ubuntu3.4"}]}],"versions":["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"],"bundled":3}],"products":[{"vendor":"bluez","product":"bluez"},{"vendor":"fedoraproject","product":"fedora"}],"references":[{"url":"https://gitlab.gnome.org/GNOME/gnome-bluetooth/-/issues/89","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=b497b5942a8beb8f89ca1c359c54ad67ec843055","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://github.com/bluez/bluez/commit/b497b5942a8beb8f89ca1c359c54ad67ec843055","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1984728","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","Third Party Advisory","fix"]},{"url":"https://security.netapp.com/advisory/ntap-20220407-0002/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/09/msg00022.html","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3658","tags":["advisory"]},{"url":"https://security.netapp.com/advisory/ntap-20220407-0002"},{"url":"https://github.com/advisories/GHSA-839c-8x38-qf59"},{"url":"https://security-tracker.debian.org/tracker/CVE-2021-3658","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2021-0395.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=29323","tags":["report"]},{"url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1370","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2022/suse-su-20223687-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1186463","tags":["report"]},{"url":"https://bugzilla.suse.com/1188859","tags":["report"]},{"url":"https://bugzilla.suse.com/1192394","tags":["report"]},{"url":"https://bugzilla.suse.com/1193227","tags":["report"]},{"url":"https://bugzilla.suse.com/1193237","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2019-8921","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-8922","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-26558","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-0129","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-3658","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-43400","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2022/suse-su-20223691-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2022/suse-su-20223981-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2021-3658","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-5155-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-3658","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-41229","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2021-43400","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2021-3658","description":"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.","status":"published","published":"2022-03-02T22:11:05Z","modified":"2026-04-15T21:11:08.326Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:33:04.020035Z"}],"euvd":[{"id":"EUVD-2021-26953","description":"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.","status":"published","published":"2022-03-02T22:11:05Z","modified":"2026-04-15T21:11:08Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T19:24:24.796113Z"}],"ghsa":[{"id":"GHSA-839c-8x38-qf59","title":"bluetoothd from bluez incorrectly saves adapters' Discoverable status when a device is powered...","description":"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.","status":"published","published":"2022-03-04T00:00:22Z","modified":"2025-11-04T18:30:38Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:04:33.412684Z"}],"nvd":[{"id":"CVE-2021-3658","description":"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.","status":"published","published":"2022-03-02T23:15:08.787Z","modified":"2026-06-17T04:05:31.11Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"2.0","score":3.3,"vector":"AV:A/AC:L/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:07:05.198719Z"}],"osv":[{"id":"CVE-2021-3658","description":"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.","status":"published","published":"2022-03-02T23:15:08.787Z","modified":"2026-10-20T14:04:49.492677526Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:20.434873Z"},{"id":"DEBIAN-CVE-2021-3658","description":"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.","status":"published","published":"2022-03-02T23:15:08.787Z","modified":"2026-10-23T18:05:22.856299541Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:35.233346Z"},{"id":"OESA-2021-1370","title":"bluez security update","description":"This package provides all utilities for use in Bluetooth applications. The BLUETOOTH trademarks are owned by Bluetooth SIG, Inc., U.S.A.\r\n\r\nSecurity Fix(es):\r\n\r\nbluetoothd from bluez incorrectly saves adapters\u0026apos; 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.(CVE-2021-3658)","status":"published","published":"2021-09-30T11:04:38Z","modified":"2026-08-18T01:16:02.678684968Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:38.987987Z"},{"id":"UBUNTU-CVE-2021-3658","description":"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.","status":"published","published":"2021-07-28T00:00:00Z","modified":"2026-04-27T09:14:13.261874Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:27.870979Z"},{"id":"DLA-3879-1","title":"bluez - security update","status":"published","published":"2024-09-07T00:00:00Z","modified":"2026-03-09T01:18:30.227025Z","updated_at":"2026-11-02T15:46:12.203458Z"},{"id":"MGASA-2021-0395","title":"Updated bluez packages fix security vulnerability","description":"Updated bluez packages fix security vulnerability:\n\nAdapter incorrectly restores Discoverable state after powered down\n(CVE-2021-3658).\n","status":"published","published":"2021-08-06T09:33:48Z","modified":"2026-04-16T04:43:26.880566661Z","updated_at":"2026-11-02T15:49:41.849028Z"},{"id":"SUSE-SU-2022:3687-1","title":"Security update for bluez","description":"This update for bluez fixes the following issues:\n\n- CVE-2021-0129: Fixed improper access control (bsc#1186463).\n- CVE-2020-26558: Fixed vulnerability that may permit a nearby man-in-the-middle attacker to identify the Passkey (bsc#1186463).\n- CVE-2019-8921: Fixed heap-based buffer overflow via crafted request (bsc#1193237).\n- CVE-2019-8922: Fixed heap-based buffer overflow via crafted request (bsc#1193227).\n- CVE-2021-3658: Fixed adapter incorrectly restoring discoverable state after powered down (bsc#1188859).\n- CVE-2021-43400: Fixed use-after-free in gatt-database.c (bsc#1192394).\n\n","status":"published","published":"2022-10-21T12:05:54Z","modified":"2026-02-04T02:13:12.565158Z","updated_at":"2026-11-02T15:53:51.440565Z"},{"id":"SUSE-SU-2022:3691-1","title":"Security update for bluez","description":"This update for bluez fixes the following issues:\n\n- CVE-2019-8921: Fixed heap-based buffer overflow via crafted request (bsc#1193237).\n- CVE-2019-8922: Fixed heap-based buffer overflow via crafted request (bsc#1193227).\n- CVE-2020-26558: Fixed vulnerability that may permit a nearby man-in-the-middle attacker to identify the Passkey (bsc#1186463).\n- CVE-2021-0129: Fixed improper access control (bsc#1186463).\n- CVE-2021-3658: Fixed adapter incorrectly restoring discoverable state after powered down (bsc#1188859).\n- CVE-2021-43400: Fixed use-after-free in gatt-database.c (bsc#1192394).\n","status":"published","published":"2022-10-21T13:10:36Z","modified":"2026-02-04T02:52:01.889281Z","updated_at":"2026-11-02T15:53:51.440565Z"},{"id":"SUSE-SU-2022:3981-1","title":"Security update for bluez","description":"This update for bluez fixes the following issues:\n\n  - CVE-2021-43400: Fixed use-after-free in gatt-database.c (bsc#1192394).\n  - CVE-2021-3658: Fixed adapter incorrectly restoring discoverable state after powered down (bsc#1188859).\n\n","status":"published","published":"2022-11-15T10:45:51Z","modified":"2026-02-04T03:13:44.254359Z","updated_at":"2026-11-02T15:53:51.440565Z"},{"id":"USN-5155-1","title":"bluez vulnerabilities","description":"It was discovered that BlueZ incorrectly handled the Discoverable status\nwhen a device is powered down. This could result in devices being powered\nup discoverable, contrary to expectations. This issue only affected Ubuntu\n20.04 LTS, Ubuntu 21.04, and Ubuntu 21.10. (CVE-2021-3658)\n\nIt was discovered that BlueZ incorrectly handled certain memory operations.\nA remote attacker could possibly use this issue to cause BlueZ to consume\nresources, leading to a denial of service. (CVE-2021-41229)\n\nIt was discovered that the BlueZ gatt server incorrectly handled\ndisconnects. A remote attacker could possibly use this issue to cause\nBlueZ to crash, leading to a denial of service. (CVE-2021-43400)\n","status":"published","published":"2021-11-23T19:04:05Z","modified":"2026-04-27T16:03:37.085780658Z","updated_at":"2026-11-02T16:58:15.683829Z"}]}}