#VU90456 NULL pointer dereference in Linux kernel - CVE-2023-52861

Vulnerability identifier: #VU90456

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-2023-52861

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 it66121_audio_get_eld() function in drivers/gpu/drm/bridge/ite-it66121.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
http://git.kernel.org/stable/c/2c80c4f0d2845645f41cbb7c9304c8efbdbd4331
http://git.kernel.org/stable/c/1669d7b21a664aa531856ce85b01359a376baebc
http://git.kernel.org/stable/c/1374561a7cbc9a000b77bb0473bb2c19daf18d86
http://git.kernel.org/stable/c/d0375f6858c4ff7244b62b02eb5e93428e1916cd

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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.