--- title: 'USN-5833-1: python-future vulnerability | Ubuntu security notices' description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/notices/USN-5833-1 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-5833-1 --- # USN-5833-1: python-future vulnerability Publication date 31 January 2023 Overview python-future could be made to crash if it received specially crafted input. Releases [22.10](https://ubuntu.com/security/notices?release=kinetic) [22.04 LTS](https://ubuntu.com/security/notices?release=jammy) [20.04 LTS](https://ubuntu.com/security/notices?release=focal) [18.04 LTS](https://ubuntu.com/security/notices?release=bionic) [16.04 LTS](https://ubuntu.com/security/notices?release=xenial) --- Open side navigation ## Packages * [python-future](https://ubuntu.com/security/cves?package=python-future) - Clean single-source support for Python 3 and 2 ## Details Sebastian Chnelik discovered that python-future incorrectly handled certain HTTP header field. 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.](https://ubuntu.com/security/cves/about#security) The problem can be corrected by updating your system to the following package versions: | Ubuntu Release | Package Version | | --- | --- | | 22.10 kinetic | [python3-future](https://launchpad.net/ubuntu/+source/python-future) –  [0.18.2-6ubuntu0.1](https://launchpad.net/ubuntu/+source/python-future/0.18.2-6ubuntu0.1) | | | | 22.04 LTS jammy | [python3-future](https://launchpad.net/ubuntu/+source/python-future) –  [0.18.2-5ubuntu0.1](https://launchpad.net/ubuntu/+source/python-future/0.18.2-5ubuntu0.1) | | | | 20.04 LTS focal | [python3-future](https://launchpad.net/ubuntu/+source/python-future) –  [0.18.2-2ubuntu0.1](https://launchpad.net/ubuntu/+source/python-future/0.18.2-2ubuntu0.1) | | | | 18.04 LTS bionic | [python3-future](https://launchpad.net/ubuntu/+source/python-future) –  [0.15.2-4ubuntu2.1](https://launchpad.net/ubuntu/+source/python-future/0.15.2-4ubuntu2.1) | | | | [python-future](https://launchpad.net/ubuntu/+source/python-future) –  [0.15.2-4ubuntu2.1](https://launchpad.net/ubuntu/+source/python-future/0.15.2-4ubuntu2.1) | | | | 16.04 LTS xenial | [python3-future](https://launchpad.net/ubuntu/+source/python-future) –  0.15.2-1ubuntu0.1~esm1   Ubuntu Pro | | | | [python-future](https://launchpad.net/ubuntu/+source/python-future) –  0.15.2-1ubuntu0.1~esm1   Ubuntu Pro | | | --- ### Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines. [Get Ubuntu Pro](https://ubuntu.com/pro) ## References * [CVE-2022-40899](https://ubuntu.com/security/CVE-2022-40899)