SB2021050431 - Ubuntu update for nvidia-graphics-drivers-390 



SB2021050431 - Ubuntu update for nvidia-graphics-drivers-390

Published: May 4, 2021

Security Bulletin ID SB2021050431
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Improper access control (CVE-ID: CVE-2021-1076)

The vulnerability allows a local user to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions in the kernel mode layer (nvlddmkm.sys or nvidia.ko). A local user can bypass implemented security restrictions, leading to denial of service, information disclosure or data corruption.


2) Release of invalid pointer or reference (CVE-ID: CVE-2021-1077)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to the affected software uses a reference count to manage a resource that is incorrectly updated. A local user can cause a denial of service condition in th target system.


Remediation

Install update from vendor's website.