#VU55039 Out-of-bounds read in nVidia products - CVE-2021-1094

Vulnerability identifier: #VU55039

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-1094

CWE-ID: CWE-125

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 gain access to potentially sensitive information or perform a denial of service attack.

The vulnerability exists due to a boundary condition in the kernel mode layer (nvlddmkm.sys) handler for DxgkDdiEscape. A local user can run a specially crafted program to trigger an out-of-bounds read and gain access to sensitive information or crash perform a 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.