CVE-2019-14865 : What You Need to Know

The grub2 software vulnerability in the grub2-set-bootflag utility can lead to system unbootability.

Understanding CVE-2019-14865

This CVE involves a vulnerability in the grub2 software that can render a system unbootable.

What is CVE-2019-14865?

The vulnerability in the grub2-set-bootflag utility can truncate configuration files, causing the system to be unbootable during restarts.

The Impact of CVE-2019-14865

The vulnerability has a CVSS base score of 5.9, with a medium severity rating. It requires local access and user interaction, potentially leading to high availability impact.

Technical Details of CVE-2019-14865

The technical aspects of the CVE.

Vulnerability Description

Running the grub2-set-bootflag utility with limited system resources can truncate grub2 configuration files, rendering the system unbootable.

Affected Systems and Versions

Product: grub2
Vendor: [UNKNOWN]
Versions: n/a

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Local
Privileges Required: Low
User Interaction: Required
Scope: Changed

Mitigation and Prevention

Steps to address the CVE.

Immediate Steps to Take

Apply patches provided by the vendor.
Monitor vendor advisories for updates.

Long-Term Security Practices

Regularly update and patch software.
Implement least privilege access controls.
Conduct security training for users.

Patching and Updates

Patch information available at the Red Hat Security Advisory RHSA-2020:0335.