A python-future security update has been released for Ubuntu Linux 16.04 ESM, 18.04 LTS, 20.04 LTS, 22.04 LTS, and 22.10.

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Ubuntu Security Notice USN-5833-1
January 31, 2023

python-future vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM

Summary:

python-future could be made to crash if it received specially crafted
input.

Software Description:
- 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:

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

Ubuntu 22.10:
python3-future 0.18.2-6ubuntu0.1

Ubuntu 22.04 LTS:
python3-future 0.18.2-5ubuntu0.1

Ubuntu 20.04 LTS:
python3-future 0.18.2-2ubuntu0.1

Ubuntu 18.04 LTS:
python-future 0.15.2-4ubuntu2.1
python3-future 0.15.2-4ubuntu2.1

Ubuntu 16.04 ESM:
python-future 0.15.2-1ubuntu0.1~esm1
python3-future 0.15.2-1ubuntu0.1~esm1

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

References:
https://ubuntu.com/security/notices/USN-5833-1
CVE-2022-40899

Package Information:
https://launchpad.net/ubuntu/+source/python-future/0.18.2-6ubuntu0.1
https://launchpad.net/ubuntu/+source/python-future/0.18.2-5ubuntu0.1
https://launchpad.net/ubuntu/+source/python-future/0.18.2-2ubuntu0.1
https://launchpad.net/ubuntu/+source/python-future/0.15.2-4ubuntu2.1