CVE-2020-14390 : What You Need to Know

A flaw in the Linux kernel versions before 5.9-rc6 can lead to memory corruption or denial of service due to an out-of-bounds memory write during screen size changes.

Understanding CVE-2020-14390

This CVE involves a vulnerability in the Linux kernel that can result in memory corruption or denial of service.

What is CVE-2020-14390?

This CVE pertains to a flaw in Linux kernel versions before 5.9-rc6, where an out-of-bounds memory write can occur during screen size changes, potentially leading to memory corruption or denial of service. Privilege escalation cannot be ruled out entirely due to the nature of the flaw.

The Impact of CVE-2020-14390

The vulnerability can result in memory corruption or denial of service, posing a risk to the affected systems' stability and security. Privilege escalation may also be possible.

Technical Details of CVE-2020-14390

This section provides technical details about the CVE.

Vulnerability Description

The flaw in Linux kernel versions before 5.9-rc6 allows for an out-of-bounds memory write during screen size changes, which can lead to memory corruption or denial of service.

Affected Systems and Versions

Product: Kernel
Vendor: N/A
Versions affected: Linux kernel versions before 5.9-rc6

Exploitation Mechanism

The vulnerability is triggered when changing screen size, causing an out-of-bounds memory write that can result in memory corruption or denial of service.

Mitigation and Prevention

Protect your systems from CVE-2020-14390 with these mitigation strategies.

Immediate Steps to Take

Apply patches provided by the Linux kernel maintainers promptly.
Monitor official sources for security advisories and updates.

Long-Term Security Practices

Regularly update your system to the latest stable kernel version.
Implement least privilege access controls to limit the impact of potential privilege escalation.

Patching and Updates

Stay informed about security updates and patches released by the Linux kernel maintainers.