Denial of Service Vulnerability in Python-Django: USN-6674-2
Summary
USN-6674-2: python-django vulnerability. Affects python-django versions < 1:1.11.11-1ubuntu1.21+esm4. Fixed in 1:1.11.11-1ubuntu1.21+esm4. How to fix ↓
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Background
Python-Django is a high-level Python web framework that encourages rapid development and clean, pragmatic design. It is widely used for building web applications and provides features such as an ORM, URL routing, and templating. The vulnerability in question affects Django's Truncator function, which is responsible for handling HTML input. This issue can lead to resource consumption, potentially resulting in a denial of service for applications using this framework.
Vulnerability Detail
The vulnerability arises from the Django Truncator function's improper handling of very long HTML input. Discovered by Seokchan Yoon, this flaw allows a remote attacker to exploit the function, causing excessive resource consumption. If successfully exploited, this could lead to a denial of service, making the application unresponsive to legitimate users. The vulnerability is tracked under CVE-2024-27351.
How To Fix
Minimum fixed version
1:1.11.11-1ubuntu1.21+esm4
This is the first release that contains the fix.
sudo apt-get install --only-upgrade python-djangoTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, you can limit the input size for the Truncator function to prevent excessive resource consumption. This can be done by implementing input validation in your application to restrict the length of HTML input processed by Django.
Conclusion
The vulnerability in Python-Django's Truncator function poses a significant risk of denial of service due to improper handling of long HTML inputs. It is crucial for users to update to the patched version to mitigate this risk and ensure the stability of their applications.
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FAQ
The vulnerability allows for denial of service due to improper handling of long HTML input by the Django Truncator function.
The vulnerability was discovered by Seokchan Yoon.
If exploited, this vulnerability can lead to resource exhaustion, causing the application to become unresponsive.
You can use Vulert's playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
Yes, the patched version is 1:1.11.11-1ubuntu1.21+esm4, and it is recommended to update to this version.
References
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