#VU55040 Untrusted Pointer Dereference in nVidia products - CVE-2021-1095

Vulnerability identifier: #VU55040

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-2021-1095

CWE-ID: CWE-822

Exploitation vector: Local

Exploit availability: No

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

Vendor: nVidia

Description

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

The vulnerability exists due to untrusted pointer dereference in the kernel mode layer (nvlddmkm.sys) handlers for all control calls with embedded parameters. A local user can run a specially crafted program to 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 Linux GPU Display Driver: before 390.144

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.