SB2021050431 - Ubuntu update for nvidia-graphics-drivers-390
Published: May 4, 2021
Breakdown by Severity
- 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.