Ubuntu 22.04: USN-5551-1 Addresses Moderate Mod-Wsgi Access Vulnerability

ubuntu

August 4, 2022

mod-wsgi could allow unintended access to network services.

Summary

mod-wsgi could allow unintended access to network services.

Software Description:

- mod-wsgi: Python WSGI adapter module for Apache

Details:

It was discovered that mod-wsgi did not correctly remove the X-Client-IP

header when processing requests from untrusted proxies. A remote attacker

could use this issue to pass the header to WSGI applications, contrary

to expectations.

Topics Covered

security advisory moderate Ubuntu network access mod-wsgi

Update Instructions

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

Ubuntu 22.04 LTS:
  libapache2-mod-wsgi-py3         4.9.0-1ubuntu0.1

Ubuntu 20.04 LTS:
  libapache2-mod-wsgi             4.6.8-1ubuntu3.1
  libapache2-mod-wsgi-py3         4.6.8-1ubuntu3.1

Ubuntu 18.04 LTS:
  libapache2-mod-wsgi             4.5.17-1ubuntu1.1
  libapache2-mod-wsgi-py3         4.5.17-1ubuntu1.1

After a standard system update you need to restart your web service to make
all the necessary changes.