#VU104260 Memory leak in Linux kernel - CVE-2022-49370

Vulnerability identifier: #VU104260

Vulnerability risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-49370

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 within the dmi_sysfs_register_handle() function in drivers/firmware/dmi-sysfs.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/3ba359ebe914ac3f8c6c832b28007c14c39d3766
https://git.kernel.org/stable/c/660ba678f9998aca6db74f2dd912fa5124f0fa31
https://git.kernel.org/stable/c/985706bd3bbeffc8737bc05965ca8d24837bc7db
https://git.kernel.org/stable/c/a724634b2a49f6ff0177a9e19a5a92fc1545e1b7
https://git.kernel.org/stable/c/a9bfb37d6ba7c376b0d53337a4c5f5ff324bd725
https://git.kernel.org/stable/c/c66cc3c62870a27ea8f060a7e4c1ad8d26dd3f0d
https://git.kernel.org/stable/c/ec752973aa721ee281d5441e497364637c626c7b
https://git.kernel.org/stable/c/ed38d04342dfbe9e5aca745c8b5eb4188a74f0ef
https://git.kernel.org/stable/c/fdffa4ad8f6bf1ece877edfb807f2b2c729d8578

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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.