CVE-2017-12130 : What You Need to Know

Tinysvcmdns library version 2017-11-05 contains a vulnerability that can lead to a denial of service attack due to a NULL pointer dereference issue.

Understanding CVE-2017-12130

This CVE entry describes a vulnerability in the Tinysvcmdns library that can be exploited to crash the server by triggering a NULL pointer dereference.

What is CVE-2017-12130?

The vulnerability in Tinysvcmdns version 2017-11-05 allows attackers to crash the server by sending a specially crafted DNS query that triggers a NULL pointer dereference.

The Impact of CVE-2017-12130

The impact of this vulnerability is rated as HIGH with a CVSS base score of 7.5. It can result in a denial of service by causing the server to crash.

Technical Details of CVE-2017-12130

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in Tinysvcmdns version 2017-11-05 arises from a NULL pointer dereference issue that can be exploited by sending a malicious DNS query.

Affected Systems and Versions

Product: Tinysvcmdns
Vendor: Talos
Version: tinysvcmdns 2017-11-05

Exploitation Mechanism

Attack Complexity: LOW
Attack Vector: NETWORK
Privileges Required: NONE
User Interaction: NONE
Scope: UNCHANGED
Availability Impact: HIGH

Mitigation and Prevention

To address and prevent the exploitation of CVE-2017-12130, consider the following steps:

Immediate Steps to Take

Update to a patched version of Tinysvcmdns to mitigate the vulnerability.
Implement network-level protections to filter out potentially malicious DNS queries.

Long-Term Security Practices

Regularly monitor and update software libraries and dependencies to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate weaknesses.

Patching and Updates

Stay informed about security advisories and patches released by the vendor to apply timely updates and fixes.