#VU104609 NULL pointer dereference in Linux kernel - CVE-2022-49618

Vulnerability identifier: #VU104609

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-2022-49618

CWE-ID: CWE-476

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 NULL pointer dereference within the aspeed_pinmux_set_mux() function in drivers/pinctrl/aspeed/pinctrl-aspeed.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/3cb392b64304a05bf647e2e44efacd9a1f3c3c6a
https://git.kernel.org/stable/c/84a85d3fef2e75b1fe9fc2af6f5267122555a1ed
https://git.kernel.org/stable/c/e162a24f1dd06c0dcae71f2565c9f3da2827b98e
https://git.kernel.org/stable/c/ef1e38532f4b2f0f3b460e938a2e7076c3bed5ee

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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.