CVE-2022-49138

MEDIUM EPSS 29.2%
Published Feb 26, 20251y ago · Modified Jun 17, 20262w ago
5.7 CVSS 3.1
Medium
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

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

CVSS Details

Base Score
5.7
Exploitability
2.1
Impact
3.6
Vector string
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Adjacent
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
29.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 1

VendorProductVersionRange
linuxlinux_kernel* <5.17.3

References 2

  • git.kernel.org https://git.kernel.org/stable/c/aa1ca580e3ffe62a2c5ea1c095b609b2943c5269
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d5ebaa7c5f6f688959e8d40840b2249ede63b8ed
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/aa1ca580e3ffe62a2c5ea1c095b609b2943c5269
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d5ebaa7c5f6f688959e8d40840b2249ede63b8ed
    Patch