A pip security update has been released for Ubuntu Linux 16.04 LTS, 18.04 LTS, 20.04 LTS, 22.04 LTS, 23.04, and 23.10.

[USN-6473-2] pip vulnerabilities

==========================================================================
Ubuntu Security Notice USN-6473-2
November 15, 2023

python-pip vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.10
- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)

Summary:

Several security issues were fixed in pip.

Software Description:
- python-pip: Python package installer

Details:

USN-6473-1 fixed vulnerabilities in urllib3. This update provides the
corresponding updates for the urllib3 module bundled into pip.

Original advisory details:

 It was discovered that urllib3 didn't strip HTTP Authorization header
 on cross-origin redirects. A remote attacker could possibly use this
 issue to obtain sensitive information. This issue only affected
 Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-25091)

 It was discovered that urllib3 didn't strip HTTP Cookie header on
 cross-origin redirects. A remote attacker could possibly use this
 issue to obtain sensitive information. (CVE-2023-43804)

 It was discovered that urllib3 didn't strip HTTP body on status code
 303 redirects under certain circumstances. A remote attacker could
 possibly use this issue to obtain sensitive information. (CVE-2023-45803)

Update instructions:

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

Ubuntu 23.10:
  python3-pip                     23.2+dfsg-1ubuntu0.1
  python3-pip-whl                 23.2+dfsg-1ubuntu0.1

Ubuntu 23.04:
  python3-pip                     23.0.1+dfsg-1ubuntu0.2
  python3-pip-whl                 23.0.1+dfsg-1ubuntu0.2

Ubuntu 22.04 LTS:
  python3-pip                     22.0.2+dfsg-1ubuntu0.4
  python3-pip-whl                 22.0.2+dfsg-1ubuntu0.4

Ubuntu 20.04 LTS:
  python-pip-whl                  20.0.2-5ubuntu1.10
  python3-pip                     20.0.2-5ubuntu1.10

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
  python-pip                      9.0.1-2.3~ubuntu1.18.04.8+esm2
  python-pip-whl                  9.0.1-2.3~ubuntu1.18.04.8+esm2
  python3-pip                     9.0.1-2.3~ubuntu1.18.04.8+esm2

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
  python-pip                      8.1.1-2ubuntu0.6+esm6
  python-pip-whl                  8.1.1-2ubuntu0.6+esm6
  python3-pip                     8.1.1-2ubuntu0.6+esm6

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

References:
  https://ubuntu.com/security/notices/USN-6473-2
  https://ubuntu.com/security/notices/USN-6473-1
  CVE-2018-25091, CVE-2023-43804, CVE-2023-45803

Package Information:
https://launchpad.net/ubuntu/+source/python-pip/23.2+dfsg-1ubuntu0.1
https://launchpad.net/ubuntu/+source/python-pip/23.0.1+dfsg-1ubuntu0.2
https://launchpad.net/ubuntu/+source/python-pip/22.0.2+dfsg-1ubuntu0.4
https://launchpad.net/ubuntu/+source/python-pip/20.0.2-5ubuntu1.10