[USN-4593-2] FreeType vulnerability

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-4593-2
October 22, 2020

freetype vulnerability
==========================================================================

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

- Ubuntu 14.04 ESM

Summary:

FreeType could be made to crash or run programs as your login if it
opened a specially crafted file.

Software Description:
- freetype: FreeType 2 is a font engine library

Details:

USN-4593-1 fixed a vulnerability in FreeType. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

 Sergei Glazunov discovered that FreeType did not correctly handle certain
 malformed font files. If a user were tricked into using a specially crafted
 font file, a remote attacker could cause FreeType to crash or possibly
 execute arbitrary code with user privileges.

Update instructions:

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

Ubuntu 14.04 ESM:
  libfreetype6                    2.5.2-1ubuntu2.8+esm2

After a standard system update you need to restart your session to make
all the necessary changes.

References:
  https://usn.ubuntu.com/4593-2
  https://usn.ubuntu.com/4593-1
  CVE-2020-15999
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