USN-4049-1: GLib vulnerability

8 July 2019

glib2.0 vulnerability

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

  • Ubuntu 18.10
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS


GLib did not properly restrict directory and file permissions.

Software Description

  • glib2.0 - GLib Input, Output and Streaming Library (fam module)


It was discovered that GLib created directories and files without properly restricting permissions. An attacker could possibly use this issue to access sensitive information.

Update instructions

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

Ubuntu 18.10
libglib2.0-0 - 2.58.1-2ubuntu0.2
libglib2.0-bin - 2.58.1-2ubuntu0.2
Ubuntu 18.04 LTS
libglib2.0-0 - 2.56.4-0ubuntu0.18.04.4
libglib2.0-bin - 2.56.4-0ubuntu0.18.04.4
Ubuntu 16.04 LTS
libglib2.0-0 - 2.48.2-0ubuntu4.3
libglib2.0-bin - 2.48.2-0ubuntu4.3

To update your system, please follow these instructions:

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