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

Summary

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

Software Description

* glib-networking - Network extensions for GLib

Details

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
glib-networking - 2.64.2-1ubuntu0.1

Ubuntu 19.10
glib-networking - 2.62.1-1ubuntu0.1

Ubuntu 18.04 LTS
glib-networking - 2.56.0-1ubuntu0.1

Ubuntu 16.04 LTS
glib-networking - 2.48.2-1~ubuntu16.04.2

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

* CVE-2020-13645

--- Mystic BBS v1.12 A45 (Linux/64)
* Origin: BZ&BZ BBS (21:4/110)