CVE-2018-19640 : What You Need to Know

In versions earlier than 3.1-5.7.1 of supportutils, a vulnerability exists that allows an attacker to terminate processes on the local device by manipulating log file directories.

Understanding CVE-2018-19640

This CVE involves a code execution vulnerability in supportutils versions prior to 3.1-5.7.1, enabling unauthorized termination of processes on the affected system.

What is CVE-2018-19640?

The vulnerability in supportutils versions before 3.1-5.7.1 permits an attacker to create files in the log file collection directory, leading to the ability to terminate desired processes on the local device.

The Impact of CVE-2018-19640

The impact of this vulnerability is rated as MEDIUM with a CVSS base score of 4.4. The attack complexity is high, requiring low privileges and user interaction, with a significant availability impact.

Technical Details of CVE-2018-19640

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows an attacker to manipulate log file directories, granting them the capability to terminate processes on the local device.

Affected Systems and Versions

Product: supportutils
Vendor: SUSE
Versions Affected: < 3.1-5.7.1 (unspecified/custom version)

Exploitation Mechanism

The attacker needs to successfully generate files in the designated log file collection directory to exploit this vulnerability.

Mitigation and Prevention

To address CVE-2018-19640, follow these mitigation strategies:

Immediate Steps to Take

Update supportutils to version 3.1-5.7.1 or later to eliminate the vulnerability.
Monitor log file directories for unauthorized file creation.

Long-Term Security Practices

Implement strict file system permissions to restrict unauthorized access.
Conduct regular security audits to detect and prevent similar vulnerabilities.

Patching and Updates

Apply security patches and updates provided by SUSE to ensure system security.