Ubuntu 20.10: USN-4689-4 Critical: NVIDIA Kernel Issues Fixed

ubuntu

January 20, 2021

Several security issues were fixed in NVIDIA graphics drivers.

Summary

Several security issues were fixed in NVIDIA graphics drivers.

Software Description:

- linux: Linux kernel

- linux-aws: Linux kernel for Amazon Web Services (AWS) systems

- linux-azure: Linux kernel for Microsoft Azure Cloud systems

- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems

- linux-oracle: Linux kernel for Oracle Cloud systems

- linux-hwe-5.8: Linux hardware enablement (HWE) kernel

- linux-hwe-5.4: Linux hardware enablement (HWE) kernel

Details:

USN-4689-3 fixed vulnerabilities in the NVIDIA server graphics drivers.

This update provides the corresponding updates for the NVIDIA Linux

DKMS kernel modules.

Original advisory details:

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

contained a vulnerability that allowed user-mode clients to access legacy

privileged APIs. A local attacker could use this to cause a denial of

service or escalate privileges. (CVE-2021-1052)

It was discovered that the NVIDIA GPU display driver for ...

Read the Full Advisory

Topics Covered

security advisory denial of service critical issue kernel update critical ubuntu nvidia driver NVIDIA driver graphics drivers hardware drivers Ubuntu 20.10

Update Instructions

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

Ubuntu 20.10:
  linux-image-5.8.0-1017-oracle   5.8.0-1017.18
  linux-image-5.8.0-1019-azure    5.8.0-1019.21
  linux-image-5.8.0-1019-gcp      5.8.0-1019.20
  linux-image-5.8.0-1020-aws      5.8.0-1020.22
  linux-image-5.8.0-40-generic    5.8.0-40.45
  linux-image-5.8.0-40-lowlatency  5.8.0-40.45
  linux-image-aws                 5.8.0.1020.22
  linux-image-azure               5.8.0.1019.19
  linux-image-gcp                 5.8.0.1019.19
  linux-image-generic             5.8.0.40.44
  linux-image-gke                 5.8.0.1019.19
  linux-image-lowlatency          5.8.0.40.44
  linux-image-oem-20.04           5.8.0.40.44
  linux-image-oracle              5.8.0.1017.17
  linux-image-virtual             5.8.0.40.44

Ubuntu 20.04 LTS:
  linux-image-5.4.0-64-generic    5.4.0-64.72
  linux-image-5.4.0-64-lowlatency  5.4.0-64.72
  linux-image-5.8.0-40-generic    5.8.0-40.45~20.04.1
  linux-image-5.8.0-40-lowlatency  5.8.0-40.45~20.04.1
  linux-image-generic             5.4.0.64.67
  linux-image-generic-hwe-20.04   5.8.0.40.45~20.04.25
  linux-image-generic-lpae-hwe-20.04  5.8.0.40.45~20.04.25
  linux-image-lowlatency          5.4.0.64.67
  linux-image-lowlatency-hwe-20.04  5.8.0.40.45~20.04.25
  linux-image-oem                 5.4.0.64.67
  linux-image-oem-osp1            5.4.0.64.67
  linux-image-virtual             5.4.0.64.67
  linux-image-virtual-hwe-20.04   5.8.0.40.45~20.04.25

Ubuntu 18.04 LTS:
  linux-image-4.15.0-134-generic  4.15.0-134.138
  linux-image-4.15.0-134-lowlatency  4.15.0-134.138
  linux-image-5.4.0-64-generic    5.4.0-64.72~18.04.1
  linux-image-5.4.0-64-lowlatency  5.4.0-64.72~18.04.1
  linux-image-generic             4.15.0.134.121
  linux-image-generic-hwe-18.04   5.4.0.64.72~18.04.59
  linux-image-lowlatency          4.15.0.134.121
  linux-image-lowlatency-hwe-18.04  5.4.0.64.72~18.04.59
  linux-image-oem                 5.4.0.64.72~18.04.59
  linux-image-oem-osp1            5.4.0.64.72~18.04.59
  linux-image-virtual             4.15.0.134.121
  linux-image-virtual-hwe-18.04   5.4.0.64.72~18.04.59

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.