usn-4989-1
Vulnerability from osv_ubuntu
Published
2021-06-16 12:18
Modified
2026-06-03 10:45
Summary
bluez vulnerabilities
Details

It was discovered that BlueZ incorrectly checked certain permissions when pairing. A local attacker could possibly use this issue to impersonate devices. (CVE-2020-26558)

Jay LV discovered that BlueZ incorrectly handled redundant disconnect MGMT events. A local attacker could use this issue to cause BlueZ to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-27153)

Ziming Zhang discovered that BlueZ incorrectly handled certain array indexes. A local attacker could use this issue to cause BlueZ to crash, resulting in a denial of service, or possibly obtain sensitive information. This issue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. (CVE-2021-3588)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-26558",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-27153",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "bluetooth",
            "binary_version": "5.48-0ubuntu3.5"
          },
          {
            "binary_name": "bluez",
            "binary_version": "5.48-0ubuntu3.5"
          },
          {
            "binary_name": "bluez-cups",
            "binary_version": "5.48-0ubuntu3.5"
          },
          {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.48-0ubuntu3.5"
          },
          {
            "binary_name": "bluez-obexd",
            "binary_version": "5.48-0ubuntu3.5"
          },
          {
            "binary_name": "bluez-tests",
            "binary_version": "5.48-0ubuntu3.5"
          },
          {
            "binary_name": "libbluetooth3",
            "binary_version": "5.48-0ubuntu3.5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "bluez",
        "purl": "pkg:deb/ubuntu/bluez@5.48-0ubuntu3.5?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.48-0ubuntu3.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "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"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-26558",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-27153",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-3588",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "bluetooth",
            "binary_version": "5.53-0ubuntu3.2"
          },
          {
            "binary_name": "bluez",
            "binary_version": "5.53-0ubuntu3.2"
          },
          {
            "binary_name": "bluez-cups",
            "binary_version": "5.53-0ubuntu3.2"
          },
          {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.53-0ubuntu3.2"
          },
          {
            "binary_name": "bluez-obexd",
            "binary_version": "5.53-0ubuntu3.2"
          },
          {
            "binary_name": "bluez-tests",
            "binary_version": "5.53-0ubuntu3.2"
          },
          {
            "binary_name": "libbluetooth3",
            "binary_version": "5.53-0ubuntu3.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "bluez",
        "purl": "pkg:deb/ubuntu/bluez@5.53-0ubuntu3.2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.53-0ubuntu3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "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"
      ]
    }
  ],
  "aliases": [],
  "details": "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",
  "id": "USN-4989-1",
  "modified": "2026-06-03T10:45:26Z",
  "published": "2021-06-16T12:18:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4989-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-26558"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-27153"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3588"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "bluez vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-26558",
    "UBUNTU-CVE-2020-27153",
    "UBUNTU-CVE-2021-3588"
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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