#VU87772 Input validation error in Linux kernel - CVE-2022-48619

Vulnerability identifier: #VU87772

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-48619

CWE-ID: CWE-20

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 insufficient validation of user-supplied input within the input_set_capability() function in drivers/input/input.c. A local user can crash the OS kernel.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel: before 5.17, 5.17

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External links
https://github.com/torvalds/linux/commit/409353cbe9fe48f6bc196114c442b1cff05a39bc
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.10

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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.