Ubuntu 23.10: USN-6473-1 Moderate: Urllib3 Information Disclosure Threat

ubuntu

November 7, 2023

Several security issues were fixed in urllib3.

Summary

Several security issues were fixed in urllib3.

Software Description:

- python-urllib3: HTTP library with thread-safe connection pooling

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)

Topics Covered

security advisory Ubuntu moderate severity information disclosure urllib3 HTTP header

Update Instructions

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

Ubuntu 23.10:
   python3-urllib3                 1.26.16-1ubuntu0.1

Ubuntu 23.04:
   python3-urllib3                 1.26.12-1ubuntu0.1

Ubuntu 22.04 LTS:
   python3-urllib3                 1.26.5-1~exp1ubuntu0.1

Ubuntu 20.04 LTS:
   python3-urllib3                 1.25.8-2ubuntu0.3

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   python-urllib3                  1.22-1ubuntu0.18.04.2+esm1
   python3-urllib3                 1.22-1ubuntu0.18.04.2+esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   python-urllib3                  1.13.1-2ubuntu0.16.04.4+esm1
   python3-urllib3                 1.13.1-2ubuntu0.16.04.4+esm1

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