Vulnerability identifier: #VU88212

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-46924

CWE-ID: CWE-401

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak in drivers/nfc/st21nfca/i2c.c. A local user can perform a denial of service attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel:

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External links
http://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d
http://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349
http://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b
http://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4
http://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe
http://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.