{"id":"CVE-2020-27153","aliases":["ALPINE-CVE-2020-27153","ALSA-2021:1598","DEBIAN-CVE-2020-27153","DLA-2410-1","DSA-4951-1","EUVD-2020-19677","GHSA-hrr3-cwf8-mjp6","MGASA-2020-0419","OESA-2021-1307","RHSA-2021:1598","RLSA-2021:1598","SUSE-SU-2020:3034-1","SUSE-SU-2020:3165-1","UBUNTU-CVE-2020-27153","USN-4989-1","USN-4989-2","openSUSE-SU-2020:1876-1","openSUSE-SU-2020:1880-1"],"status":"published","title":"In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared...","description":"In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. 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BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event.","status":"published","published":"2020-10-15T02:53:27Z","modified":"2026-04-15T21:08:08.76Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-415"],"updated_at":"2026-11-02T14:35:53.552996Z"}],"euvd":[{"id":"EUVD-2020-19677","description":"In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event.","status":"published","published":"2020-10-15T02:53:27Z","modified":"2026-04-15T21:08:08Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T19:24:24.796113Z"}],"ghsa":[{"id":"GHSA-hrr3-cwf8-mjp6","title":"In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared...","description":"In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event.","status":"published","published":"2022-05-24T17:30:45Z","modified":"2023-01-29T05:04:21Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"cwes":["CWE-415"],"updated_at":"2026-11-02T14:45:32.201087Z"}],"nvd":[{"id":"CVE-2020-27153","description":"In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event.","status":"published","published":"2020-10-15T03:15:12.12Z","modified":"2026-06-17T03:08:52.377Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-415"],"updated_at":"2026-11-02T14:06:19.351389Z"}],"osv":[{"id":"ALPINE-CVE-2020-27153","description":"In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event.","status":"published","published":"2020-10-15T03:15:12.12Z","modified":"2026-10-26T11:17:55.160245992Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:27:48.11886Z"},{"id":"CVE-2020-27153","description":"In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event.","status":"published","published":"2020-10-15T03:15:12.12Z","modified":"2026-10-20T14:05:19.944623434Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:16.248747Z"},{"id":"DEBIAN-CVE-2020-27153","description":"In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event.","status":"published","published":"2020-10-15T03:15:12.12Z","modified":"2026-10-26T12:02:41.643720548Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:33.729655Z"},{"id":"OESA-2021-1307","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\nIn BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event.(CVE-2020-27153)","status":"published","published":"2021-08-14T11:04:32Z","modified":"2026-08-18T01:15:52.603730316Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"updated_at":"2026-11-02T15:52:38.987987Z"},{"id":"RHSA-2021:1598","title":"Red Hat Security Advisory: bluez security update","status":"published","published":"2024-09-16T04:56:49Z","modified":"2026-06-26T12:21:16.177891854Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:08.071325Z"},{"id":"RLSA-2021:1598","title":"Moderate: bluez security update","description":"The bluez packages contain the following utilities for use in Bluetooth applications: hcitool, hciattach, hciconfig, bluetoothd, l2ping, start scripts (Rocky Enterprise Software Foundation), and pcmcia configuration files. \n\nSecurity Fix(es):\n\n* bluez: double free in gatttool client disconnect callback handler in src/shared/att.c could lead to DoS or RCE (CVE-2020-27153)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Rocky Linux 8.4 Release Notes linked from the References section.","status":"published","published":"2021-05-18T05:37:07Z","modified":"2026-02-04T20:00:07.562231Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:23.969672Z"},{"id":"UBUNTU-CVE-2020-27153","description":"In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event.","status":"published","published":"2020-10-15T03:15:00Z","modified":"2026-04-27T09:10:19.718297Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"},{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:24.541803Z"},{"id":"ALSA-2021:1598","title":"Moderate: bluez security update","description":"The bluez packages contain the following utilities for use in Bluetooth applications: hcitool, hciattach, hciconfig, bluetoothd, l2ping, start scripts (AlmaLinux), and pcmcia configuration files. \n\nSecurity Fix(es):\n\n* bluez: double free in gatttool client disconnect callback handler in src/shared/att.c could lead to DoS or RCE (CVE-2020-27153)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.","status":"published","published":"2021-05-18T05:37:07Z","modified":"2026-10-29T11:00:16.11926401Z","updated_at":"2026-11-02T15:27:51.196609Z"},{"id":"DLA-2410-1","title":"bluez - security update","status":"published","published":"2020-10-21T00:00:00Z","modified":"2026-03-09T01:23:19.74956Z","updated_at":"2026-11-02T15:46:10.712745Z"},{"id":"DSA-4951-1","title":"bluez - security update","status":"published","published":"2021-08-07T00:00:00Z","modified":"2026-03-09T02:10:31.232568Z","updated_at":"2026-11-02T15:46:17.19998Z"},{"id":"MGASA-2020-0419","title":"Updated bluez packages fix a security vulnerability","description":"In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb()\nroutine from shared/att.c. A remote attacker could potentially cause a denial\nof service or code execution, during service discovery, due to a redundant\ndisconnect MGMT event. (CVE-2020-27153)\n","status":"published","published":"2020-11-13T21:20:36Z","modified":"2026-04-16T04:40:41.518158996Z","updated_at":"2026-11-02T15:49:41.509337Z"},{"id":"openSUSE-SU-2020:1876-1","title":"Security update for bluez","description":"This update for bluez fixes the following issues:\n\n- CVE-2020-27153: Fixed possible crash on disconnect (bsc#1177895).\n\nThis update was imported from the SUSE:SLE-15:Update update project.","status":"published","published":"2020-11-08T15:24:51Z","modified":"2026-02-04T02:22:05.130262Z","updated_at":"2026-11-02T16:58:31.517538Z"},{"id":"openSUSE-SU-2020:1880-1","title":"Security update for bluez","description":"This update for bluez fixes the following issues:\n\n- CVE-2020-27153: Fixed possible crash on disconnect (bsc#1177895).\n\nThis update was imported from the SUSE:SLE-15:Update update project.","status":"published","published":"2020-11-09T11:26:25Z","modified":"2026-02-04T03:38:47.226346Z","updated_at":"2026-11-02T16:58:31.517538Z"},{"id":"SUSE-SU-2020:3034-1","title":"Security update for bluez","description":"This update for bluez fixes the following issues:\n\n- CVE-2020-27153: Fixed crash on disconnect (bsc#1177895).\n- CVE-2020-0556: Fixed potential escalation of privilege and denial of service via adjacent access, caused by improper access control (bsc#1166751).\n","status":"published","published":"2020-10-26T10:38:45Z","modified":"2026-02-04T04:04:28.018509Z","updated_at":"2026-11-02T15:53:48.11786Z"},{"id":"SUSE-SU-2020:3165-1","title":"Security update for bluez","description":"This update for bluez fixes the following issues:\n\n- CVE-2020-27153: Fixed possible crash on disconnect (bsc#1177895).\n","status":"published","published":"2020-11-05T09:36:59Z","modified":"2026-02-04T03:48:21.502618Z","updated_at":"2026-11-02T15:53:48.11786Z"},{"id":"USN-4989-1","title":"bluez vulnerabilities","description":"It was discovered that BlueZ incorrectly checked certain permissions when\npairing. A local attacker could possibly use this issue to impersonate\ndevices. (CVE-2020-26558)\n\nJay LV discovered that BlueZ incorrectly handled redundant disconnect MGMT\nevents. A local attacker could use this issue to cause BlueZ to crash,\nresulting in a denial of service, or possibly execute arbitrary code. This\nissue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-27153)\n\nZiming Zhang discovered that BlueZ incorrectly handled certain array\nindexes. A local attacker could use this issue to cause BlueZ to crash,\nresulting in a denial of service, or possibly obtain sensitive information.\nThis issue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. (CVE-2021-3588)\n","status":"published","published":"2021-06-16T12:18:32Z","modified":"2026-06-03T14:04:09.316134897Z","updated_at":"2026-11-02T16:58:15.159055Z"},{"id":"USN-4989-2","title":"bluez vulnerabilities","description":"USN-4989-1 fixed several vulnerabilities in BlueZ. This update provides\nthe corresponding update for Ubuntu 16.04 ESM.\n\nOriginal advisory details:\n\n It was discovered that BlueZ incorrectly checked certain permissions when\n pairing. A local attacker could possibly use this issue to impersonate\n devices. (CVE-2020-26558)\n\n Jay LV discovered that BlueZ incorrectly handled redundant disconnect MGMT\n events. A local attacker could use this issue to cause BlueZ to crash,\n resulting in a denial of service, or possibly execute arbitrary code. This\n issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-27153)\n","status":"published","published":"2021-06-16T14:17:40Z","modified":"2026-06-25T13:30:13.948214903Z","updated_at":"2026-11-02T16:58:15.159055Z"}]}}