CVE-2022-49754

Severity CVSS v4.0:

Pending analysis

Type:

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Publication date:

27/03/2025

Last modified:

01/10/2025

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix a buffer overflow in mgmt_mesh_add() Smatch Warning: net/bluetooth/mgmt_util.c:375 mgmt_mesh_add() error: __memcpy() &#39;mesh_tx->param&#39; too small (48 vs 50) Analysis: &#39;mesh_tx->param&#39; is array of size 48. This is the destination. u8 param[sizeof(struct mgmt_cp_mesh_send) + 29]; // 19 + 29 = 48. But in the caller &#39;mesh_send&#39; we reject only when len > 50. len > (MGMT_MESH_SEND_SIZE + 31) // 19 + 31 = 50.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	6.1 (including)	6.1.9 (excluding)
cpe:2.3:o:linux:linux_kernel:6.2:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc3::::::
cpe:2.3:o:linux:linux_kernel:6.2:rc4::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-49754

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools