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CVE-2021-1056

Publication date 7 January 2021

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.1 · High

Score breakdown

NVIDIA GPU Display Driver for Linux, all versions, contains a vulnerability in the kernel mode layer (nvidia.ko) in which it does not completely honor operating system file system permissions to provide GPU device-level isolation, which may lead to denial of service or information disclosure.

From the Ubuntu Security Team

Xinyuan Lyu discovered that the NVIDIA GPU display driver for the Linux kernel did not properly restrict device-level GPU isolation. A local attacker could use this to cause a denial of service or possibly expose sensitive information.

Read the notes from the security team

Status

Package Ubuntu Release Status
nvidia-graphics-drivers-390 20.10 groovy
Fixed 390.141-0ubuntu0.20.10.1
20.04 LTS focal
Fixed 390.141-0ubuntu0.20.04.1
18.04 LTS bionic
Fixed 390.141-0ubuntu0.18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
nvidia-graphics-drivers-418-server 20.10 groovy
Fixed 418.181.07-0ubuntu0.20.10.1
20.04 LTS focal
Fixed 418.181.07-0ubuntu0.20.04.1
18.04 LTS bionic
Fixed 418.181.07-0ubuntu0.18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
nvidia-graphics-drivers-440-server 20.10 groovy Ignored
20.04 LTS focal Ignored
18.04 LTS bionic Ignored
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
nvidia-graphics-drivers-450 20.10 groovy
Fixed 450.102.04-0ubuntu0.20.10.1
20.04 LTS focal
Fixed 450.102.04-0ubuntu0.20.04.1
18.04 LTS bionic
Fixed 450.102.04-0ubuntu0.18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
nvidia-graphics-drivers-450-server 20.10 groovy
Fixed 450.102.04-0ubuntu0.20.10.1
20.04 LTS focal
Fixed 450.102.04-0ubuntu0.20.04.1
18.04 LTS bionic
Fixed 450.102.04-0ubuntu0.18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
nvidia-graphics-drivers-455 20.10 groovy Ignored
20.04 LTS focal Ignored
18.04 LTS bionic Ignored
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
nvidia-graphics-drivers-460 20.10 groovy
Fixed 460.32.03-0ubuntu0.20.10.1
20.04 LTS focal
Fixed 460.32.03-0ubuntu0.20.04.1
18.04 LTS bionic
Fixed 460.32.03-0ubuntu0.18.04.1
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release

Notes

alexmurray

CVE-2021-1052, CVE-2021-1053, and CVE-2021-1056 affect the following NVIDIA driver series: 450, 455, 418-server, 440-server, 450-server

sbeattie

NVIDIA series 455 are superseded by the 460 series. NVIDIA series 440-server are superseded by 450-server.

Severity score breakdown

Parameter Value
Base score 7.1 · High
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-4689-1
    • NVIDIA graphics drivers vulnerabilities
    • 11 January 2021
    • USN-4689-2
    • Linux kernel vulnerabilities
    • 11 January 2021

Other references