CVE-2022-48873

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-48873
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Don't remove map on creater_process and device_release Do not remove the map from the list on error path in fastrpc_init_create_process, instead call fastrpc_map_put, to avoid use-after-free. Do not remove it on fastrpc_device_release either, call fastrpc_map_put instead. The fastrpc_free_map is the only proper place to remove the map. This is called only after the reference count is 0.

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/193cd853145b63e670bd73740250983af1475330 Patch
https://git.kernel.org/stable/c/1b7b7bb400dd13dcb03fc6e591bb7ca4664bbec8 Patch
https://git.kernel.org/stable/c/35ddd482345c43d9eec1f3406c0f20a95ed4054b Patch
https://git.kernel.org/stable/c/4b5c44e924a571d0ad07054de549624fbc04e4d7 Patch
https://git.kernel.org/stable/c/5bb96c8f9268e2fdb0e5321cbc358ee5941efc15 Patch
Configurations

Configuration 1 (hide)

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

06 Sep 2024, 14:44

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/193cd853145b63e670bd73740250983af1475330 - () https://git.kernel.org/stable/c/193cd853145b63e670bd73740250983af1475330 - Patch
References () https://git.kernel.org/stable/c/1b7b7bb400dd13dcb03fc6e591bb7ca4664bbec8 - () https://git.kernel.org/stable/c/1b7b7bb400dd13dcb03fc6e591bb7ca4664bbec8 - Patch
References () https://git.kernel.org/stable/c/35ddd482345c43d9eec1f3406c0f20a95ed4054b - () https://git.kernel.org/stable/c/35ddd482345c43d9eec1f3406c0f20a95ed4054b - Patch
References () https://git.kernel.org/stable/c/4b5c44e924a571d0ad07054de549624fbc04e4d7 - () https://git.kernel.org/stable/c/4b5c44e924a571d0ad07054de549624fbc04e4d7 - Patch
References () https://git.kernel.org/stable/c/5bb96c8f9268e2fdb0e5321cbc358ee5941efc15 - () https://git.kernel.org/stable/c/5bb96c8f9268e2fdb0e5321cbc358ee5941efc15 - Patch
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: misc: fastrpc: no elimine el mapa en creater_process y device_release. No elimine el mapa de la lista en la ruta de error en fastrpc_init_create_process; en su lugar, llame a fastrpc_map_put para evitar el use-after-free. Tampoco lo elimine en fastrpc_device_release; en su lugar, llame a fastrpc_map_put. fastrpc_free_map es el único lugar adecuado para eliminar el mapa. Esto se llama solo después de que el recuento de referencias sea 0.
First Time Linux linux Kernel
Linux
CWE CWE-416
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
CPE cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*

21 Aug 2024, 07:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-08-21 07:15

Updated : 2024-09-06 14:44

NVD link : CVE-2022-48873

Mitre link : CVE-2022-48873

CVE.ORG link : CVE-2022-48873

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free