#VU55043 NULL pointer dereference in NVIDIA Windows GPU Display Driver and NVIDIA vGPU Software - CVE-2021-1096

Vulnerability identifier: #VU55043

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-2021-1096

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
NVIDIA Windows GPU Display Driver
Client/Desktop applications / Virtualization software
NVIDIA vGPU Software
Client/Desktop applications / Other client software

Vendor: nVidia

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in the NVIDIA kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape. A local user can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

NVIDIA Windows GPU Display Driver: before 392.67

NVIDIA vGPU Software: before 8.8

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External links
https://nvidia.custhelp.com/app/answers/detail/a_id/5211

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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.