USN-4405-1: GLib Networking vulnerability

USN-4405-1: GLib Networking vulnerability

glib-networking vulnerability

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

  • Ubuntu 20.04 LTS
  • Ubuntu 19.10
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS


Fraudulent security certificates could allow sensitive
information to be exposed when accessing the Internet.

Software Description

  • glib-networking – Network extensions for GLib


It was discovered that glib-networking skipped hostname certificate
verification if the application failed to specify the server
identity. A remote attacker could use this to perform a
person-in-the-middle attack and expose sensitive information.

Update instructions

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

Ubuntu 20.04 LTS
Ubuntu 19.10
Ubuntu 18.04 LTS
Ubuntu 16.04 LTS

To update your system, please follow these instructions:

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


Source: USN-4405-1: GLib Networking vulnerability

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