=========================================================================Ubuntu Security Notice USN-5821-3
February 28, 2023

python-pip regression
=========================================================================
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
- Ubuntu 14.04 ESM

Summary:

USN-5821-1 caused a regression in pip.

Software Description:
- python-pip: Python package installer

Details:

USN-5821-1 fixed a vulnerability in wheel and pip. Unfortunately,
it was missing a commit to fix it properly in pip.

We apologize for the inconvenience.

Original advisory details:

  Sebastian Chnelik discovered that wheel incorrectly handled
  certain file names when validated against a regex expression.
  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-pip                     22.2+dfsg-1ubuntu0.2
   python3-pip-whl                 22.2+dfsg-1ubuntu0.2

Ubuntu 22.04 LTS:
   python3-pip                     22.0.2+dfsg-1ubuntu0.2
   python3-pip-whl                 22.0.2+dfsg-1ubuntu0.2

Ubuntu 20.04 LTS:
   python-pip-whl                  20.0.2-5ubuntu1.8
   python3-pip                     20.0.2-5ubuntu1.8

Ubuntu 18.04 LTS:
   python-pip                      9.0.1-2.3~ubuntu1.18.04.7
   python-pip-whl                  9.0.1-2.3~ubuntu1.18.04.7
   python3-pip                     9.0.1-2.3~ubuntu1.18.04.7

Ubuntu 16.04 ESM:
   python-pip                      8.1.1-2ubuntu0.6+esm4
   python-pip-whl                  8.1.1-2ubuntu0.6+esm4
   python3-pip                     8.1.1-2ubuntu0.6+esm4

Ubuntu 14.04 ESM:
   python-pip                      1.5.4-1ubuntu4+esm3
   python-pip-whl                  1.5.4-1ubuntu4+esm3
   python3-pip                     1.5.4-1ubuntu4+esm3

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

References:
   https://ubuntu.com/security/notices/USN-5821-3
   https://ubuntu.com/security/notices/USN-5821-1
   CVE-2022-40898

Package Information:
https://launchpad.net/ubuntu/+source/python-pip/22.2+dfsg-1ubuntu0.2
https://launchpad.net/ubuntu/+source/python-pip/22.0.2+dfsg-1ubuntu0.2
https://launchpad.net/ubuntu/+source/python-pip/20.0.2-5ubuntu1.8
https://launchpad.net/ubuntu/+source/python-pip/9.0.1-2.3~ubuntu1.18.04.7