#VU90429 NULL pointer dereference in Linux kernel - CVE-2023-52815

Vulnerability identifier: #VU90429

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-2023-52815

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_vkms_conn_get_modes() function in drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.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/eaa03ea366c85ae3cb69c8d4bbc67c8bc2167a27
http://git.kernel.org/stable/c/33fb1a555354bd593f785935ddcb5d9dd4d3847f
http://git.kernel.org/stable/c/8c6c85a073768df68c1a3fea143d013a38c66d34
http://git.kernel.org/stable/c/70f831f21155c692bb336c434936fd6f24f3f81a
http://git.kernel.org/stable/c/cd90511557fdfb394bb4ac4c3b539b007383914c

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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.