CVE-2018-5995 : What You Need to Know

CVE-2018-5995 was published on August 7, 2018, and affects the Linux kernel up to version 4.14.14. The vulnerability allows local users to obtain sensitive address information through a specific function in the kernel.

Understanding CVE-2018-5995

This section provides insights into the nature and impact of the CVE-2018-5995 vulnerability.

What is CVE-2018-5995?

The vulnerability in the Linux kernel, up to version 4.14.14, enables local users to access sensitive address information by reading specific kernel data.

The Impact of CVE-2018-5995

The exploitation of this vulnerability can lead to unauthorized access to critical system information, posing a security risk to affected systems.

Technical Details of CVE-2018-5995

Explore the technical aspects of CVE-2018-5995 to understand its implications and mechanisms.

Vulnerability Description

The flaw resides in the pcpu_embed_first_chunk function in mm/percpu.c, allowing local users to extract sensitive address details by reading kernel data.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: Up to Linux kernel version 4.14.14

Exploitation Mechanism

By leveraging the pcpu_embed_first_chunk function in the Linux kernel, attackers can read dmesg data from a specific printk call to obtain sensitive address information.

Mitigation and Prevention

Discover the steps to mitigate the risks associated with CVE-2018-5995 and prevent potential exploitation.

Immediate Steps to Take

Monitor system logs for any suspicious activities related to sensitive address information access.
Implement strict access controls to limit unauthorized access to kernel data.
Apply security patches and updates provided by the Linux kernel maintainers.

Long-Term Security Practices

Conduct regular security audits to identify and address vulnerabilities in the system.
Educate users on best practices for handling sensitive system information to prevent unauthorized access.

Patching and Updates

Stay informed about security advisories and updates released by the Linux kernel community.
Promptly apply patches and updates to ensure the system is protected against known vulnerabilities.