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Ubuntu Security Notice USN-4049-3
August 05, 2019

glib2.0 regression
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS

Summary:

USN-4049-1 introduced a regression in GLib.

Software Description:
- glib2.0: GLib Input, Output and Streaming Library (fam module)

Details:

USN-4049-1 fixed a vulnerability in GLib. The update introduced a regression
in Ubuntu 16.04 LTS causing a possibly memory leak. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

 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 16.04 LTS:
  libglib2.0-0                    2.48.2-0ubuntu4.4
  libglib2.0-bin                  2.48.2-0ubuntu4.4

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

References:
  https://usn.ubuntu.com/4049-3
  https://usn.ubuntu.com/4049-1
  https://launchpad.net/bugs/1838890

Package Information:
  https://launchpad.net/ubuntu/+source/glib2.0/2.48.2-0ubuntu4.4