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USN-7607-3 (UBUNTU-CVE-2021-47260)

Vulnerability from osv_ubuntu – Published: 2025-07-08 22:32 – Updated: 2026-08-05 23:36 – Source website
VLAI
Summary
linux-kvm vulnerabilities
Details

It was discovered that a use-after-free vulnerability existed in the Bluetooth stack in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3640)

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - SCSI subsystem; - Network file system (NFS) client; - NILFS2 file system; - File systems infrastructure; - Memory management; - Bluetooth subsystem; - Network traffic control; - USB sound devices; (CVE-2024-50116, CVE-2021-47576, CVE-2024-53197, CVE-2024-46787, CVE-2025-37798, CVE-2024-49958, CVE-2021-47260, CVE-2025-37932, CVE-2022-49909)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-47260",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-47576",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-3640",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-49909",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-46787",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-49958",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-50116",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-53197",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-37798",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-37932",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "linux-buildinfo-4.4.0-1146-kvm",
            "binary_version": "4.4.0-1146.157"
          },
          {
            "binary_name": "linux-cloud-tools-4.4.0-1146-kvm",
            "binary_version": "4.4.0-1146.157"
          },
          {
            "binary_name": "linux-headers-4.4.0-1146-kvm",
            "binary_version": "4.4.0-1146.157"
          },
          {
            "binary_name": "linux-image-4.4.0-1146-kvm",
            "binary_version": "4.4.0-1146.157"
          },
          {
            "binary_name": "linux-kvm-cloud-tools-4.4.0-1146",
            "binary_version": "4.4.0-1146.157"
          },
          {
            "binary_name": "linux-kvm-headers-4.4.0-1146",
            "binary_version": "4.4.0-1146.157"
          },
          {
            "binary_name": "linux-kvm-tools-4.4.0-1146",
            "binary_version": "4.4.0-1146.157"
          },
          {
            "binary_name": "linux-modules-4.4.0-1146-kvm",
            "binary_version": "4.4.0-1146.157"
          },
          {
            "binary_name": "linux-tools-4.4.0-1146-kvm",
            "binary_version": "4.4.0-1146.157"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "linux-kvm",
        "purl": "pkg:deb/ubuntu/linux-kvm@4.4.0-1146.157?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.4.0-1146.157"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.4.0-1004.9",
        "4.4.0-1007.12",
        "4.4.0-1008.13",
        "4.4.0-1009.14",
        "4.4.0-1010.15",
        "4.4.0-1012.17",
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        "4.4.0-1015.20",
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        "4.4.0-1020.25",
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        "4.4.0-1135.145",
        "4.4.0-1136.146",
        "4.4.0-1137.147",
        "4.4.0-1138.148",
        "4.4.0-1139.149",
        "4.4.0-1140.151",
        "4.4.0-1141.152",
        "4.4.0-1142.153",
        "4.4.0-1143.154",
        "4.4.0-1144.155",
        "4.4.0-1145.156"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that a use-after-free vulnerability existed in the\nBluetooth stack in the Linux kernel. A local attacker could use this to\ncause a denial of service (system crash) or possibly execute arbitrary\ncode. (CVE-2022-3640)\n\nSeveral security issues were discovered in the Linux kernel.\nAn attacker could possibly use these to compromise the system.\nThis update corrects flaws in the following subsystems:\n  - SCSI subsystem;\n  - Network file system (NFS) client;\n  - NILFS2 file system;\n  - File systems infrastructure;\n  - Memory management;\n  - Bluetooth subsystem;\n  - Network traffic control;\n  - USB sound devices;\n(CVE-2024-50116, CVE-2021-47576, CVE-2024-53197, CVE-2024-46787,\nCVE-2025-37798, CVE-2024-49958, CVE-2021-47260, CVE-2025-37932,\nCVE-2022-49909)\n",
  "id": "USN-7607-3",
  "modified": "2026-08-05T23:36:04Z",
  "published": "2025-07-08T22:32:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7607-3"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-47260"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-47576"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-3640"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-49909"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-46787"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-49958"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-50116"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-53197"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-37798"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-37932"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-kvm vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-47260",
    "UBUNTU-CVE-2021-47576",
    "UBUNTU-CVE-2022-3640",
    "UBUNTU-CVE-2022-49909",
    "UBUNTU-CVE-2024-46787",
    "UBUNTU-CVE-2024-49958",
    "UBUNTU-CVE-2024-50116",
    "UBUNTU-CVE-2024-53197",
    "UBUNTU-CVE-2025-37798",
    "UBUNTU-CVE-2025-37932"
  ]
}



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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.
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  • 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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