Critical Denial of Service Vulnerabilities in ruby-rack
Summary
USN-6837-2: ruby-rack vulnerabilities. Affects ruby-rack versions < 1.5.2-3+deb8u3ubuntu1~esm8. Fixed in 1.5.2-3+deb8u3ubuntu1~esm8. How to fix ↓
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Background
ruby-rack is a widely used web application server interface for Ruby applications, providing a modular and adaptable framework for handling HTTP requests. It is integral to many Ruby-based web applications, allowing developers to build and manage web services efficiently. However, recent vulnerabilities have been discovered that could lead to denial of service attacks, affecting the performance and availability of applications relying on this package.
Vulnerability Detail
The vulnerabilities identified in ruby-rack stem from improper handling of media types, Range headers, and crafted headers. Specifically, CVE-2024-25126 allows attackers to exploit media type parsing, potentially leading to resource exhaustion. CVE-2024-26141 involves mishandling of Range headers, which can result in large response generation, while CVE-2024-26146 pertains to crafted headers that can also cause resource consumption. These vulnerabilities primarily affect Ubuntu 20.04 LTS and Ubuntu 22.04 LTS, posing significant risks to applications using these versions.
How To Fix
Minimum fixed version
1.5.2-3+deb8u3ubuntu1~esm8
This is the first release that contains the fix.
sudo apt-get install --only-upgrade ruby-rackTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If immediate patching is not feasible, consider implementing rate limiting on your web server to mitigate potential denial of service attacks. Additionally, monitor your application for unusual traffic patterns that may indicate an ongoing attack.
Conclusion
The vulnerabilities in ruby-rack pose significant risks to applications running on affected versions of Ubuntu. It is crucial to update to the patched versions to safeguard against potential denial of service attacks. Additionally, utilizing tools like Vulert can help monitor and alert for vulnerabilities in real-time.
See every vulnerability recorded for ruby-rack →
FAQ
ruby-rack is a framework for building web applications in Ruby, providing a standardized interface for handling HTTP requests.
The vulnerabilities can lead to denial of service attacks, causing applications to become unresponsive or consume excessive resources.
The vulnerabilities primarily affect Ubuntu 20.04 LTS and Ubuntu 22.04 LTS.
You can use Vulert, which monitors open-source vulnerabilities in your software. Visit Vulert Scanner to check your application without needing to sign up.
Implement rate limiting and monitor for unusual traffic patterns as a temporary measure to mitigate potential attacks.
Related vulnerabilities
Recent vulnerabilities recorded for ruby-rack.
