CVE-2022-49754

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-49754
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() 'mesh_tx->param' too small (48 vs 50) Analysis: 'mesh_tx->param' 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 'mesh_send' we reject only when len > 50. len > (MGMT_MESH_SEND_SIZE + 31) // 19 + 31 = 50.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/2185e0fdbb2137f22a9dd9fcbf6481400d56299b Patch
https://git.kernel.org/stable/c/ed818fd8c531abf561b379995ee7cc4c68029464 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*
History

14 Apr 2025, 20:16

Type Values Removed Values Added
First Time Linux linux Kernel
Linux
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
References () https://git.kernel.org/stable/c/2185e0fdbb2137f22a9dd9fcbf6481400d56299b - () https://git.kernel.org/stable/c/2185e0fdbb2137f22a9dd9fcbf6481400d56299b - Patch
References () https://git.kernel.org/stable/c/ed818fd8c531abf561b379995ee7cc4c68029464 - () https://git.kernel.org/stable/c/ed818fd8c531abf561b379995ee7cc4c68029464 - Patch
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: se corrige un desbordamiento de búfer en mgmt_mesh_add() Smatch Advertencia: net/bluetooth/mgmt_util.c:375 error de mgmt_mesh_add(): __memcpy() 'mesh_tx->param' demasiado pequeño (48 frente a 50) Análisis: 'mesh_tx->param' es una matriz de tamaño 48. Este es el destino. u8 param[sizeof(struct mgmt_cp_mesh_send) + 29]; // 19 + 29 = 48. Pero en el llamador 'mesh_send' rechazamos solo cuando len > 50. len > (MGMT_MESH_SEND_SIZE + 31) // 19 + 31 = 50.
CPE cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-120

27 Mar 2025, 17:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-03-27 17:15

Updated : 2025-04-14 20:16

NVD link : CVE-2022-49754

Mitre link : CVE-2022-49754

CVE.ORG link : CVE-2022-49754

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-120

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