Denial of Service Vulnerability in Ruby Rack Package: CVE-2022-44570
Summary
UBUNTU-CVE-2022-44570: A denial of service vulnerability in the Range header parsing component of Rack >= 1.5.0. Affects ruby-rack versions < 1.5.2-3+deb8u3ubuntu1~esm6. Fixed in 1.5.2-3+deb8u3ubuntu1~esm6. How to fix ↓
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Background
Ruby Rack is a modular Ruby web server interface that provides a minimal, modular, and adaptable interface for web applications. It is widely used in Ruby web frameworks and applications to handle HTTP requests and responses. The package is designed to facilitate the development of web applications by providing essential middleware components. However, it has been identified to have a vulnerability that could lead to denial of service under specific conditions.
Vulnerability Detail
The vulnerability, identified as CVE-2022-44570, arises from a flaw in the Range header parsing component of Rack versions 1.5.0 and above. An attacker can exploit this vulnerability by sending carefully crafted input that causes the Range header parsing to take an excessive amount of time. This can lead to a denial of service, particularly affecting applications that handle Range requests, such as streaming services or file-serving applications. The CVSS score for this vulnerability is 7.5, indicating a high severity level.
How To Fix
Minimum fixed version
1.5.2-3+deb8u3ubuntu1~esm6
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 updating is not feasible, consider implementing rate limiting on your application to mitigate the impact of potential denial of service attacks. Additionally, review and sanitize incoming requests to ensure they do not contain malicious Range headers.
Conclusion
CVE-2022-44570 represents a significant denial of service vulnerability in the Ruby Rack package, affecting various versions. It is crucial for users and developers to update their installations to the patched versions to ensure the security and reliability of their applications.
See every vulnerability recorded for ruby-rack →
FAQ
CVE-2022-44570 is a denial of service vulnerability in the Ruby Rack package that affects versions 1.5.0 and above, allowing attackers to exploit the Range header parsing.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Simply upload your manifest file like package-lock.json to check for vulnerabilities.
Exploitation of this vulnerability can lead to denial of service, causing applications to become unresponsive or slow, particularly those that handle Range requests.
Yes, patched versions of the Ruby Rack package are available for various Ubuntu distributions. It is recommended to update to these versions to mitigate the vulnerability.
The CVSS score for CVE-2022-44570 is 7.5, indicating a high severity level.
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