SB2021030451 - Fedora 32 update for kernel, kernel-headers, kernel-tools
Published: March 4, 2021
Security Bulletin ID
SB2021030451
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Null pointer dereference (CVE-ID: CVE-2020-25639)
The vulnerability allows a local privileged user to perform a denial of service (DoS) attack.
A NULL pointer dereference flaw was found in the Linux kernel's GPU Nouveau driver functionality in versions prior to 5.12-rc1 in the way the user calls ioctl DRM_IOCTL_NOUVEAU_CHANNEL_ALLOC. This flaw allows a local user to crash the system.
Remediation
Install update from vendor's website.