CVE-2018-1000135 : What You Need to Know

A vulnerability related to information exposure has been identified in versions 1.10.2 and earlier of GNOME NetworkManager, potentially leading to the disclosure of private DNS queries to DNS servers on the local network while connected to a VPN.

Understanding CVE-2018-1000135

This CVE involves an information exposure vulnerability in GNOME NetworkManager versions 1.10.2 and earlier, affecting the DNS resolver functionality.

What is CVE-2018-1000135?

The vulnerability in GNOME NetworkManager versions 1.10.2 and earlier allows private DNS queries to be exposed to local network DNS servers when connected to a VPN.

The Impact of CVE-2018-1000135

The vulnerability could result in the leakage of private DNS queries, compromising user privacy and potentially exposing sensitive information to unauthorized parties.

Technical Details of CVE-2018-1000135

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in GNOME NetworkManager versions 1.10.2 and earlier is related to information exposure, specifically in the DNS resolver component.

Affected Systems and Versions

Versions 1.10.2 and earlier of GNOME NetworkManager

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to intercept and view private DNS queries transmitted over a VPN connection.

Mitigation and Prevention

Protecting systems from CVE-2018-1000135 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable automatic DNS resolution in NetworkManager settings
Monitor network traffic for any suspicious DNS queries
Use a trusted VPN service with secure DNS resolution

Long-Term Security Practices

Regularly update NetworkManager to the latest version
Implement network segmentation to isolate sensitive traffic
Conduct regular security audits and penetration testing

Patching and Updates

Apply patches provided by the vendor to address the vulnerability