ghsa-79x7-rvwv-cm9m
Vulnerability from github
Published
2025-09-23 18:30
Modified
2025-09-23 18:30
Severity ?
5.7 (Medium) - CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_event: Ignore multiple conn complete events

When one of the three connection complete events is received multiple times for the same handle, the device is registered multiple times which leads to memory corruptions. Therefore, consequent events for a single connection are ignored.

The conn->state can hold different values, therefore HCI_CONN_HANDLE_UNSET is introduced to identify new connections. To make sure the events do not contain this or another invalid handle HCI_CONN_HANDLE_MAX and checks are introduced.

Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=215497

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-49138"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:00:51Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_event: Ignore multiple conn complete events\n\nWhen one of the three connection complete events is received multiple\ntimes for the same handle, the device is registered multiple times which\nleads to memory corruptions. Therefore, consequent events for a single\nconnection are ignored.\n\nThe conn-\u003estate can hold different values, therefore HCI_CONN_HANDLE_UNSET\nis introduced to identify new connections. To make sure the events do not\ncontain this or another invalid handle HCI_CONN_HANDLE_MAX and checks\nare introduced.\n\nBuglink: https://bugzilla.kernel.org/show_bug.cgi?id=215497",
  "id": "GHSA-79x7-rvwv-cm9m",
  "modified": "2025-09-23T18:30:20Z",
  "published": "2025-09-23T18:30:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49138"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aa1ca580e3ffe62a2c5ea1c095b609b2943c5269"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d5ebaa7c5f6f688959e8d40840b2249ede63b8ed"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.