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

Vulnerability identifier: #VU55039

CSH Severity: Low

CVSS v4: 4.8 [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]

CVE-ID: CVE-2021-1094

CWE-ID: CWE-125

Exploitation vector: Local access

Exploit availability: No public exploit available

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.

NVIDIA vGPU Software
NVIDIA Linux GPU Display Driver
NVIDIA Windows GPU Display Driver
Arch Linux
Ubuntu
xserver-xorg-video-nvidia-390 (Ubuntu package)
xserver-xorg-video-nvidia-418-server (Ubuntu package)
xserver-xorg-video-nvidia-450-server (Ubuntu package)
xserver-xorg-video-nvidia-440-server (Ubuntu package)
xserver-xorg-video-nvidia-460-server (Ubuntu package)
xserver-xorg-video-nvidia-455 (Ubuntu package)
xserver-xorg-video-nvidia-460 (Ubuntu package)
xserver-xorg-video-nvidia-450 (Ubuntu package)
xserver-xorg-video-nvidia-465 (Ubuntu package)
xserver-xorg-video-nvidia-470 (Ubuntu package)

Install updates from vendor's website.

NVIDIA vGPU Software - addressed in versions 8.8, 11.5, 12.3
NVIDIA Linux GPU Display Driver - addressed in versions 390.144, 418.211.00, 450.142.00, 460.91.03, 470.57.02
NVIDIA Windows GPU Display Driver - addressed in versions 392.67, 427.48, 453.10, 462.96, 471.41
xserver-xorg-video-nvidia-390 (Ubuntu package) - addressed in versions 390.144-0ubuntu0.18.04.1, 390.144-0ubuntu0.20.04.1, 390.144-0ubuntu0.20.10.1, 390.144-0ubuntu0.21.04.1
xserver-xorg-video-nvidia-418-server (Ubuntu package) - addressed in versions 418.211.00-0ubuntu0.18.04.1, 418.211.00-0ubuntu0.20.04.1, 418.211.00-0ubuntu0.20.10.1, 418.211.00-0ubunt0.21.04.1
xserver-xorg-video-nvidia-450-server (Ubuntu package) - addressed in versions 450.142.00-0ubuntu0.18.04.1, 450.142.00-0ubuntu0.20.04.1, 450.142.00-0ubuntu0.20.10.1, 450.142.00-0ubuntu0.21.04.1
xserver-xorg-video-nvidia-440-server (Ubuntu package) - addressed in versions 450.142.00-0ubuntu0.18.04.1, 450.142.00-0ubuntu0.20.04.1, 450.142.00-0ubuntu0.20.10.1, 450.142.00-0ubuntu0.21.04.1
xserver-xorg-video-nvidia-460-server (Ubuntu package) - addressed in versions 460.91.03-0ubuntu0.18.04.1, 460.91.03-0ubuntu0.20.04.1, 460.91.03-0ubuntu0.20.10.1, 460.91.03-0ubuntu0.21.04.1
xserver-xorg-video-nvidia-455 (Ubuntu package) - addressed in versions 460.91.03-0ubuntu0.18.04.1, 460.91.03-0ubuntu0.20.04.1, 460.91.03-0ubuntu0.20.10.1, 460.91.03-0ubuntu0.21.04.1
xserver-xorg-video-nvidia-460 (Ubuntu package) - addressed in versions 460.91.03-0ubuntu0.18.04.1, 460.91.03-0ubuntu0.20.04.1, 460.91.03-0ubuntu0.20.10.1, 460.91.03-0ubuntu0.21.04.1
xserver-xorg-video-nvidia-450 (Ubuntu package) - addressed in versions 460.91.03-0ubuntu0.18.04.1, 460.91.03-0ubuntu0.20.04.1, 460.91.03-0ubuntu0.20.10.1, 460.91.03-0ubuntu0.21.04.1
xserver-xorg-video-nvidia-465 (Ubuntu package) - addressed in versions 470.57.02-0ubuntu0.18.04.1, 470.57.02-0ubuntu0.20.04.1, 470.57.02-0ubuntu0.20.10.1, 470.57.02-0ubuntu0.21.04.1
xserver-xorg-video-nvidia-470 (Ubuntu package) - addressed in versions 470.57.02-0ubuntu0.18.04.1, 470.57.02-0ubuntu0.20.04.1, 470.57.02-0ubuntu0.20.10.1, 470.57.02-0ubuntu0.21.04.1

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

• Multiple vulnerabilities in NVIDIA GPU Display Driver
• Arch Linux update for nvidia-utils
• Ubuntu update for nvidia-graphics-drivers-390