[USN-4049-4] GLib regression

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[USN-4049-4] GLib regression

Leonidas S. Barbosa
==========================================================================
Ubuntu Security Notice USN-4049-4
August 06, 2019

glib2.0 regression
==========================================================================

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

- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

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.
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 14.04 ESM:
  libglib2.0-0                    2.40.2-0ubuntu1.1+esm3
  libglib2.0-bin                  2.40.2-0ubuntu1.1+esm3

Ubuntu 12.04 ESM:
  libglib2.0-0                    2.32.4-0ubuntu1.4
  libglib2.0-bin                  2.32.4-0ubuntu1.4

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

References:
  https://usn.ubuntu.com/4049-4
  https://usn.ubuntu.com/4049-1
  https://launchpad.net/bugs/1838890

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