Ubuntu 21.04 USN-4935-1 Moderate: NVIDIA Access Control DoS Risk

ubuntu

May 4, 2021

Several security issues were fixed in NVIDIA graphics drivers.

Summary

Several security issues were fixed in NVIDIA graphics drivers.

Software Description:

- nvidia-graphics-drivers-390: NVIDIA binary X.Org driver

- nvidia-graphics-drivers-418-server: NVIDIA Server Driver

- nvidia-graphics-drivers-450: NVIDIA binary X.Org driver

- nvidia-graphics-drivers-450-server: NVIDIA Server Driver

- nvidia-graphics-drivers-460: NVIDIA binary X.Org driver

- nvidia-graphics-drivers-460-server: NVIDIA Server Driver

Details:

It was discovered that the NVIDIA GPU display driver for the Linux kernel

incorrectly performed access control. A local attacker could use this issue

to cause a denial of service, expose sensitive information, or escalate

privileges. (CVE-2021-1076)

It was discovered that the NVIDIA GPU display driver for the Linux kernel

incorrectly performed reference counting. A local attacker could use this

issue to cause a denial of service. (CVE-2021-1077)

Topics Covered

security advisory moderate denial of service software update access control ubuntu driver update nvidia nvidia graphics

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 21.04:
  xserver-xorg-video-nvidia-418-server  418.197.02-0ubuntu1
  xserver-xorg-video-nvidia-450   450.119.03-0ubuntu1
  xserver-xorg-video-nvidia-450-server  450.119.03-0ubuntu1
  xserver-xorg-video-nvidia-460   460.73.01-0ubuntu1
  xserver-xorg-video-nvidia-460-server  460.73.01-0ubuntu1

Ubuntu 20.10:
  xserver-xorg-video-nvidia-390   390.143-0ubuntu0.20.10.1
  xserver-xorg-video-nvidia-418-server  418.197.02-0ubuntu0.20.10.1
  xserver-xorg-video-nvidia-450   450.119.03-0ubuntu0.20.10.1
  xserver-xorg-video-nvidia-450-server  450.119.03-0ubuntu0.20.10.1
  xserver-xorg-video-nvidia-460   460.73.01-0ubuntu0.20.10.1
  xserver-xorg-video-nvidia-460-server  460.73.01-0ubuntu0.20.10.1

Ubuntu 20.04 LTS:
  xserver-xorg-video-nvidia-390   390.143-0ubuntu0.20.04.1
  xserver-xorg-video-nvidia-418-server  418.197.02-0ubuntu0.20.04.1
  xserver-xorg-video-nvidia-450   450.119.03-0ubuntu0.20.04.1
  xserver-xorg-video-nvidia-450-server  450.119.03-0ubuntu0.20.04.1
  xserver-xorg-video-nvidia-460   460.73.01-0ubuntu0.20.04.1
  xserver-xorg-video-nvidia-460-server  460.73.01-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
  xserver-xorg-video-nvidia-390   390.143-0ubuntu0.18.04.1
  xserver-xorg-video-nvidia-418-server  418.197.02-0ubuntu0.18.04.1
  xserver-xorg-video-nvidia-450   450.119.03-0ubuntu0.18.04.1
  xserver-xorg-video-nvidia-450-server  450.119.03-0ubuntu0.18.04.1
  xserver-xorg-video-nvidia-460   460.73.01-0ubuntu0.18.04.1
  xserver-xorg-video-nvidia-460-server  460.73.01-0ubuntu0.18.04.1

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to reboot your computer to
make all the necessary changes.