CVE-2018-1000518 : Security Advisory and Response

In the fourth version of aaugustin websockets, a vulnerability identified as CWE-409 allows for data amplification leading to denial of service due to memory exhaustion. Learn about the impact, technical details, and mitigation steps.

Understanding CVE-2018-1000518

This CVE involves a vulnerability in aaugustin websockets version 4 that can result in a denial of service attack.

What is CVE-2018-1000518?

The vulnerability in aaugustin websockets version 4, identified as CWE-409, involves improper handling of highly compressed data, potentially leading to data amplification and denial of service due to memory exhaustion.

The Impact of CVE-2018-1000518

Servers and clients are affected unless compression is set to None
Exploitable by sending a specially crafted frame on an established connection
Fixed in the fifth version of aaugustin websockets

Technical Details of CVE-2018-1000518

This section provides more technical insights into the vulnerability.

Vulnerability Description

Improper handling of highly compressed data
Can lead to data amplification and denial of service

Affected Systems and Versions

Servers and clients unless compression is set to None

Exploitation Mechanism

Attack can be exploited by sending a specially crafted frame on an established connection

Mitigation and Prevention

Here are the steps to mitigate and prevent exploitation of this vulnerability.

Immediate Steps to Take

Ensure compression is set to None if possible
Monitor for any unusual data amplification activities

Long-Term Security Practices

Regularly update to the latest version of aaugustin websockets
Implement network-level protections against denial of service attacks

Patching and Updates

Update to the fixed version (fifth version) of aaugustin websockets