USN-8908-2 (UBUNTU-CVE-2026-19774)

Vulnerability from osv_ubuntu – Published: 2026-10-13 19:28 – Updated: 2026-10-13 19:28 – Source website
VLAI
Summary
bluez regression
Details

USN-8908-1 fixed vulnerabilities in BlueZ. Unfortunately, that update introduced a regression in the A2DP profile: cached remote stream endpoints were no longer loaded at startup, which could cause Bluetooth audio devices to fail to reconnect automatically or to fall back to low-quality audio profiles. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Michael Bommarito discovered that BlueZ incorrectly handled codec capability storage in the A2DP profile. An attacker could possibly use this issue to cause a stack buffer overflow, resulting in a denial of service or arbitrary code execution. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-19774)

It was discovered that BlueZ incorrectly handled packet length validation. An attacker could possibly use this issue to read out of bounds memory, causing a crash or exposing sensitive information. (CVE-2026-75032)

It was discovered that BlueZ incorrectly handled crafted XML input. An attacker could possibly use this issue to crash BlueZ, resulting in a denial of service. (CVE-2026-80185)

It was discovered that BlueZ incorrectly parsed remote names from Extended Inquiry Response data. An attacker could possibly use this issue to cause a stack buffer overflow, resulting in a denial of service or arbitrary code execution. (CVE-2026-80186)

Alexandro Calo discovered that BlueZ incorrectly parsed certain responses in the AVRCP profile. An attacker could possibly use this issue to access out of bounds memory, causing a crash or exposing sensitive information. (CVE-2026-85218)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-19774",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "bluetooth",
            "binary_version": "5.53-0ubuntu3.9+esm2"
          },
          {
            "binary_name": "bluez",
            "binary_version": "5.53-0ubuntu3.9+esm2"
          },
          {
            "binary_name": "bluez-cups",
            "binary_version": "5.53-0ubuntu3.9+esm2"
          },
          {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.53-0ubuntu3.9+esm2"
          },
          {
            "binary_name": "bluez-obexd",
            "binary_version": "5.53-0ubuntu3.9+esm2"
          },
          {
            "binary_name": "bluez-tests",
            "binary_version": "5.53-0ubuntu3.9+esm2"
          },
          {
            "binary_name": "libbluetooth3",
            "binary_version": "5.53-0ubuntu3.9+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "bluez",
        "purl": "pkg:deb/ubuntu/bluez@5.53-0ubuntu3.9+esm2?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
            {
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            },
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
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        "5.51-0ubuntu1",
        "5.51-0ubuntu2",
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        "5.53-0ubuntu2",
        "5.53-0ubuntu3",
        "5.53-0ubuntu3.1",
        "5.53-0ubuntu3.2",
        "5.53-0ubuntu3.3",
        "5.53-0ubuntu3.4",
        "5.53-0ubuntu3.5",
        "5.53-0ubuntu3.6",
        "5.53-0ubuntu3.7",
        "5.53-0ubuntu3.8",
        "5.53-0ubuntu3.9",
        "5.53-0ubuntu3.9+esm1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-19774",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "bluetooth",
            "binary_version": "5.64-0ubuntu1.6"
          },
          {
            "binary_name": "bluez",
            "binary_version": "5.64-0ubuntu1.6"
          },
          {
            "binary_name": "bluez-cups",
            "binary_version": "5.64-0ubuntu1.6"
          },
          {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.64-0ubuntu1.6"
          },
          {
            "binary_name": "bluez-meshd",
            "binary_version": "5.64-0ubuntu1.6"
          },
          {
            "binary_name": "bluez-obexd",
            "binary_version": "5.64-0ubuntu1.6"
          },
          {
            "binary_name": "bluez-tests",
            "binary_version": "5.64-0ubuntu1.6"
          },
          {
            "binary_name": "libbluetooth3",
            "binary_version": "5.64-0ubuntu1.6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "bluez",
        "purl": "pkg:deb/ubuntu/bluez@5.64-0ubuntu1.6?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.64-0ubuntu1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.60-0ubuntu2",
        "5.62-0ubuntu1",
        "5.62-0ubuntu2",
        "5.63-0ubuntu1",
        "5.63-0ubuntu2",
        "5.64-0ubuntu1",
        "5.64-0ubuntu1.1",
        "5.64-0ubuntu1.3",
        "5.64-0ubuntu1.4",
        "5.64-0ubuntu1.5"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-19774",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "bluetooth",
            "binary_version": "5.72-0ubuntu5.8"
          },
          {
            "binary_name": "bluez",
            "binary_version": "5.72-0ubuntu5.8"
          },
          {
            "binary_name": "bluez-cups",
            "binary_version": "5.72-0ubuntu5.8"
          },
          {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.72-0ubuntu5.8"
          },
          {
            "binary_name": "bluez-meshd",
            "binary_version": "5.72-0ubuntu5.8"
          },
          {
            "binary_name": "bluez-obexd",
            "binary_version": "5.72-0ubuntu5.8"
          },
          {
            "binary_name": "bluez-source",
            "binary_version": "5.72-0ubuntu5.8"
          },
          {
            "binary_name": "bluez-test-scripts",
            "binary_version": "5.72-0ubuntu5.8"
          },
          {
            "binary_name": "bluez-test-tools",
            "binary_version": "5.72-0ubuntu5.8"
          },
          {
            "binary_name": "libbluetooth3",
            "binary_version": "5.72-0ubuntu5.8"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "bluez",
        "purl": "pkg:deb/ubuntu/bluez@5.72-0ubuntu5.8?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.72-0ubuntu5.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.68-0ubuntu1",
        "5.70-0ubuntu1",
        "5.70-0ubuntu2",
        "5.70-0ubuntu3",
        "5.71-0ubuntu3",
        "5.71-1ubuntu2",
        "5.71-1ubuntu3",
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        "5.72-0ubuntu3",
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        "5.72-0ubuntu5.4",
        "5.72-0ubuntu5.5",
        "5.72-0ubuntu5.6",
        "5.72-0ubuntu5.7"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-19774",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:26.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "bluetooth",
            "binary_version": "5.85-4ubuntu0.4"
          },
          {
            "binary_name": "bluez",
            "binary_version": "5.85-4ubuntu0.4"
          },
          {
            "binary_name": "bluez-cups",
            "binary_version": "5.85-4ubuntu0.4"
          },
          {
            "binary_name": "bluez-hcidump",
            "binary_version": "5.85-4ubuntu0.4"
          },
          {
            "binary_name": "bluez-meshd",
            "binary_version": "5.85-4ubuntu0.4"
          },
          {
            "binary_name": "bluez-obexd",
            "binary_version": "5.85-4ubuntu0.4"
          },
          {
            "binary_name": "bluez-source",
            "binary_version": "5.85-4ubuntu0.4"
          },
          {
            "binary_name": "bluez-test-scripts",
            "binary_version": "5.85-4ubuntu0.4"
          },
          {
            "binary_name": "bluez-test-tools",
            "binary_version": "5.85-4ubuntu0.4"
          },
          {
            "binary_name": "libbluetooth3",
            "binary_version": "5.85-4ubuntu0.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "bluez",
        "purl": "pkg:deb/ubuntu/bluez@5.85-4ubuntu0.4?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.85-4ubuntu0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.83-1~exp1",
        "5.84-1",
        "5.85-1",
        "5.85-2",
        "5.85-3",
        "5.85-4",
        "5.85-4ubuntu0.1",
        "5.85-4ubuntu0.2",
        "5.85-4ubuntu0.3"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-8908-1 fixed vulnerabilities in BlueZ. Unfortunately, that update introduced a\nregression in the A2DP profile: cached remote stream endpoints were no\nlonger loaded at startup, which could cause Bluetooth audio devices to\nfail to reconnect automatically or to fall back to low-quality audio\nprofiles. This update fixes the problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n Michael Bommarito discovered that BlueZ incorrectly handled codec\n capability storage in the A2DP profile. An attacker could possibly\n use this issue to cause a stack buffer overflow, resulting in a denial\n of service or arbitrary code execution. This issue only affected Ubuntu\n 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS and Ubuntu 26.04 LTS.\n (CVE-2026-19774)\n\n It was discovered that BlueZ incorrectly handled packet length validation.\n An attacker could possibly use this issue to read out of bounds memory,\n causing a crash or exposing sensitive information. (CVE-2026-75032)\n\n It was discovered that BlueZ incorrectly handled crafted XML input. An\n attacker could possibly use this issue to crash BlueZ, resulting in a\n denial of service. (CVE-2026-80185)\n\n It was discovered that BlueZ incorrectly parsed remote names from Extended\n Inquiry Response data. An attacker could possibly use this issue to cause a\n stack buffer overflow, resulting in a denial of service or arbitrary code\n execution. (CVE-2026-80186)\n\n Alexandro Calo discovered that BlueZ incorrectly parsed certain responses\n in the AVRCP profile. An attacker could possibly use this issue to access\n out of bounds memory, causing a crash or exposing sensitive information.\n (CVE-2026-85218)",
  "id": "USN-8908-2",
  "modified": "2026-10-13T19:28:30Z",
  "published": "2026-10-13T19:28:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8908-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-19774"
    },
    {
      "type": "REPORT",
      "url": "https://launchpad.net/bugs/2170509"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "bluez regression",
  "upstream": [
    "UBUNTU-CVE-2026-19774"
  ]
}



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