CVE-2021-47612

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47612
In the Linux kernel, the following vulnerability has been resolved: nfc: fix segfault in nfc_genl_dump_devices_done When kmalloc in nfc_genl_dump_devices() fails then nfc_genl_dump_devices_done() segfaults as below KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 PID: 25 Comm: kworker/0:1 Not tainted 5.16.0-rc4-01180-g2a987e65025e-dirty #5 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-6.fc35 04/01/2014 Workqueue: events netlink_sock_destruct_work RIP: 0010:klist_iter_exit+0x26/0x80 Call Trace: <TASK> class_dev_iter_exit+0x15/0x20 nfc_genl_dump_devices_done+0x3b/0x50 genl_lock_done+0x84/0xd0 netlink_sock_destruct+0x8f/0x270 __sk_destruct+0x64/0x3b0 sk_destruct+0xa8/0xd0 __sk_free+0x2e8/0x3d0 sk_free+0x51/0x90 netlink_sock_destruct_work+0x1c/0x20 process_one_work+0x411/0x710 worker_thread+0x6fd/0xa80

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/214af18abbe39db05beb305b2d11e87d09a6529c Patch
https://git.kernel.org/stable/c/2a8845b9603c545fddd17862282dc4c4ce0971e3 Patch
https://git.kernel.org/stable/c/6644989642844de830f9b072cd65c553cb55946c Patch
https://git.kernel.org/stable/c/c602863ad28ec86794cb4ab4edea5324f555f181 Patch
https://git.kernel.org/stable/c/d731ecc6f2eaec68f4ad1542283bbc7d07bd0112 Patch
https://git.kernel.org/stable/c/d89e4211b51752daf063d638af50abed2fd5f96d Patch
https://git.kernel.org/stable/c/ea55b3797878752aa076b118afb727dcf79cac34 Patch
https://git.kernel.org/stable/c/fd79a0cbf0b2e34bcc45b13acf962e2032a82203 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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

27 Aug 2024, 16:14

Type Values Removed Values Added
First Time Linux
Linux linux Kernel
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE CWE-476
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/214af18abbe39db05beb305b2d11e87d09a6529c - () https://git.kernel.org/stable/c/214af18abbe39db05beb305b2d11e87d09a6529c - Patch
References () https://git.kernel.org/stable/c/2a8845b9603c545fddd17862282dc4c4ce0971e3 - () https://git.kernel.org/stable/c/2a8845b9603c545fddd17862282dc4c4ce0971e3 - Patch
References () https://git.kernel.org/stable/c/6644989642844de830f9b072cd65c553cb55946c - () https://git.kernel.org/stable/c/6644989642844de830f9b072cd65c553cb55946c - Patch
References () https://git.kernel.org/stable/c/c602863ad28ec86794cb4ab4edea5324f555f181 - () https://git.kernel.org/stable/c/c602863ad28ec86794cb4ab4edea5324f555f181 - Patch
References () https://git.kernel.org/stable/c/d731ecc6f2eaec68f4ad1542283bbc7d07bd0112 - () https://git.kernel.org/stable/c/d731ecc6f2eaec68f4ad1542283bbc7d07bd0112 - Patch
References () https://git.kernel.org/stable/c/d89e4211b51752daf063d638af50abed2fd5f96d - () https://git.kernel.org/stable/c/d89e4211b51752daf063d638af50abed2fd5f96d - Patch
References () https://git.kernel.org/stable/c/ea55b3797878752aa076b118afb727dcf79cac34 - () https://git.kernel.org/stable/c/ea55b3797878752aa076b118afb727dcf79cac34 - Patch
References () https://git.kernel.org/stable/c/fd79a0cbf0b2e34bcc45b13acf962e2032a82203 - () https://git.kernel.org/stable/c/fd79a0cbf0b2e34bcc45b13acf962e2032a82203 - Patch

20 Jun 2024, 12:43

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nfc: corrige el error de segmentación en nfc_genl_dump_devices_done Cuando falla kmalloc en nfc_genl_dump_devices(), entonces el error de segmentación de nfc_genl_dump_devices_done() se muestra a continuación KASAN: null-ptr-deref en el rango [0x0000000000000008-0x00 0000000000000f] CPU: 0 PID : 25 Comm: kworker/0:1 Not tainted 5.16.0-rc4-01180-g2a987e65025e-dirty #5 Nombre del hardware: PC estándar QEMU (i440FX + PIIX, 1996), BIOS 1.14.0-6.fc35 04/01/ 2014 Cola de trabajo: eventos netlink_sock_destruct_work RIP: 0010:klist_iter_exit+0x26/0x80 Seguimiento de llamadas: class_dev_iter_exit+0x15/0x20 nfc_genl_dump_devices_done+0x3b/0x50 genl_lock_done+0x84/0xd0 estructura+0x8f/0x270 __sk_destruct+0x64/0x3b0 sk_destruct+0xa8/0xd0 __sk_free+0x2e8/0x3d0 sk_free+0x51/0x90 netlink_sock_destruct_work+0x1c/0x20 Process_one_work+0x411/0x710 trabajador_thread+0x6fd/0xa80

19 Jun 2024, 15:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-06-19 15:15

Updated : 2024-08-27 16:14

NVD link : CVE-2021-47612

Mitre link : CVE-2021-47612

CVE.ORG link : CVE-2021-47612

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference