1. Ubuntu Security Notices
  2. USN-6780-1

USN-6780-1: idna vulnerability

Publication date

21 May 2024

Overview

idna could be made to consume significant resources if it receives a specially crafted input.

Releases

Packages

Details

Guido Vranken discovered that idna did not properly manage certain inputs,
which could lead to significant resource consumption. An attacker could
possibly use this issue to cause a denial of service.

Guido Vranken discovered that idna did not properly manage certain inputs,
which could lead to significant resource consumption. An attacker could
possibly use this issue to cause a denial of service.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
24.04 noble python3-idna –  3.6-2ubuntu0.1
23.10 mantic python3-idna –  3.3-2ubuntu0.1
22.04 jammy python3-idna –  3.3-1ubuntu0.1
20.04 focal python-idna –  2.8-1ubuntu0.1
python3-idna –  2.8-1ubuntu0.1
18.04 bionic pypy-idna –  2.6-1ubuntu0.1~esm1  
python-idna –  2.6-1ubuntu0.1~esm1  
python3-idna –  2.6-1ubuntu0.1~esm1  
16.04 xenial pypy-idna –  2.0-3ubuntu0.1~esm1  
python-idna –  2.0-3ubuntu0.1~esm1  
python3-idna –  2.0-3ubuntu0.1~esm1  

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References

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