#VU90418 NULL pointer dereference in Linux kernel - CVE-2023-52773

Vulnerability identifier: #VU90418

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-2023-52773

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 amdgpu_dm_i2c_xfer() function in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.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/fb5c134ca589fe670430acc9e7ebf2691ca2476d
https://git.kernel.org/stable/c/5b14cf37b9f01de0b28c6f8960019d4c7883ce42
https://git.kernel.org/stable/c/1d07b7e84276777dad3c8cfebdf8e739606f90c9
https://git.kernel.org/stable/c/b71f4ade1b8900d30c661d6c27f87c35214c398c

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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.