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             AUSCERT External Security Bulletin Redistribution

            USN-4935-1: NVIDIA graphics drivers vulnerabilities
                                5 May 2021


        AusCERT Security Bulletin Summary

Product:           NVIDIA graphics drivers
Publisher:         Ubuntu
Operating System:  Ubuntu
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Increased Privileges     -- Existing Account
                   Denial of Service        -- Existing Account
                   Access Confidential Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-1077 CVE-2021-1076 

Original Bulletin: 

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Ubuntu. It is recommended that administrators 
         running NVIDIA graphics drivers check for an updated version of the
         software for their operating system.

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USN-4935-1: NVIDIA graphics drivers vulnerabilities
04 May 2021

Several security issues were fixed in NVIDIA graphics drivers.

  o Ubuntu 21.04
  o Ubuntu 20.10
  o Ubuntu 20.04 LTS
  o Ubuntu 18.04 LTS


  o nvidia-graphics-drivers-390 - NVIDIA binary X.Org driver
  o nvidia-graphics-drivers-418-server - NVIDIA Server Driver
  o nvidia-graphics-drivers-450 - NVIDIA binary X.Org driver
  o nvidia-graphics-drivers-450-server - NVIDIA Server Driver
  o nvidia-graphics-drivers-460 - NVIDIA binary X.Org driver
  o nvidia-graphics-drivers-460-server - NVIDIA Server Driver


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 )

Update instructions

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

Ubuntu 21.04

  o xserver-xorg-video-nvidia-460-server - 460.73.01-0ubuntu1
  o xserver-xorg-video-nvidia-418-server - 418.197.02-0ubuntu1
  o xserver-xorg-video-nvidia-460 - 460.73.01-0ubuntu1
  o xserver-xorg-video-nvidia-450-server - 450.119.03-0ubuntu1
  o xserver-xorg-video-nvidia-450 - 450.119.03-0ubuntu1

Ubuntu 20.10

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

Ubuntu 20.04

  o xserver-xorg-video-nvidia-450 - 450.119.03-0ubuntu0.20.04.1
  o xserver-xorg-video-nvidia-460 - 460.73.01-0ubuntu0.20.04.1
  o xserver-xorg-video-nvidia-450-server - 450.119.03-0ubuntu0.20.04.1
  o xserver-xorg-video-nvidia-390 - 390.143-0ubuntu0.20.04.1
  o xserver-xorg-video-nvidia-460-server - 460.73.01-0ubuntu0.20.04.1
  o xserver-xorg-video-nvidia-418-server - 418.197.02-0ubuntu0.20.04.1

Ubuntu 18.04

  o xserver-xorg-video-nvidia-450 - 450.119.03-0ubuntu0.18.04.1
  o xserver-xorg-video-nvidia-460 - 460.73.01-0ubuntu0.18.04.1
  o xserver-xorg-video-nvidia-450-server - 450.119.03-0ubuntu0.18.04.1
  o xserver-xorg-video-nvidia-390 - 390.143-0ubuntu0.18.04.1
  o xserver-xorg-video-nvidia-460-server - 460.73.01-0ubuntu0.18.04.1
  o xserver-xorg-video-nvidia-418-server - 418.197.02-0ubuntu0.18.04.1

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.


  o CVE-2021-1076
  o CVE-2021-1077

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