CVE-2021-47612
"NXP NFC null-ptr-deref vulnerability"
Description
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
INFO
Published Date :
June 19, 2024, 3:15 p.m.
Last Modified :
Aug. 27, 2024, 4:14 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47612.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47612 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47612 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Aug. 27, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://git.kernel.org/stable/c/214af18abbe39db05beb305b2d11e87d09a6529c No Types Assigned https://git.kernel.org/stable/c/214af18abbe39db05beb305b2d11e87d09a6529c Patch Changed Reference Type https://git.kernel.org/stable/c/2a8845b9603c545fddd17862282dc4c4ce0971e3 No Types Assigned https://git.kernel.org/stable/c/2a8845b9603c545fddd17862282dc4c4ce0971e3 Patch Changed Reference Type https://git.kernel.org/stable/c/6644989642844de830f9b072cd65c553cb55946c No Types Assigned https://git.kernel.org/stable/c/6644989642844de830f9b072cd65c553cb55946c Patch Changed Reference Type https://git.kernel.org/stable/c/c602863ad28ec86794cb4ab4edea5324f555f181 No Types Assigned https://git.kernel.org/stable/c/c602863ad28ec86794cb4ab4edea5324f555f181 Patch Changed Reference Type https://git.kernel.org/stable/c/d731ecc6f2eaec68f4ad1542283bbc7d07bd0112 No Types Assigned https://git.kernel.org/stable/c/d731ecc6f2eaec68f4ad1542283bbc7d07bd0112 Patch Changed Reference Type https://git.kernel.org/stable/c/d89e4211b51752daf063d638af50abed2fd5f96d No Types Assigned https://git.kernel.org/stable/c/d89e4211b51752daf063d638af50abed2fd5f96d Patch Changed Reference Type https://git.kernel.org/stable/c/ea55b3797878752aa076b118afb727dcf79cac34 No Types Assigned https://git.kernel.org/stable/c/ea55b3797878752aa076b118afb727dcf79cac34 Patch Changed Reference Type https://git.kernel.org/stable/c/fd79a0cbf0b2e34bcc45b13acf962e2032a82203 No Types Assigned https://git.kernel.org/stable/c/fd79a0cbf0b2e34bcc45b13acf962e2032a82203 Patch Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.4.296 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.294 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.259 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.222 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.167 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.87 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.10 -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 19, 2024
Action Type Old Value New Value Added Description 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 Added Reference kernel.org https://git.kernel.org/stable/c/ea55b3797878752aa076b118afb727dcf79cac34 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/214af18abbe39db05beb305b2d11e87d09a6529c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/6644989642844de830f9b072cd65c553cb55946c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/2a8845b9603c545fddd17862282dc4c4ce0971e3 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d731ecc6f2eaec68f4ad1542283bbc7d07bd0112 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c602863ad28ec86794cb4ab4edea5324f555f181 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d89e4211b51752daf063d638af50abed2fd5f96d [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/fd79a0cbf0b2e34bcc45b13acf962e2032a82203 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47612 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47612
weaknesses.