[USN-4126-2] FreeType vulnerabilities

[Leonidas S. Barbosa]

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Ubuntu Security Notice USN-4126-2
September 09, 2019

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

- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

Summary:

FreeType could be made to expose sensitive information if it opened a
specially crafted font file.

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

Details:

USN-4126-1 fixed a vulnerability in FreeType. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

It was discovered that FreeType incorrectly handled certain font files.
An attacker could possibly use this issue to access sensitive information.
(CVE-2015-9381, CVE-2015-9382)

Original advisory details:

 It was discovered that FreeType incorrectly handled certain font files.
 An attacker could possibly use this issue to access sensitive information.
 (CVE-2015-9383)

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+esm1

Ubuntu 12.04 ESM:
  libfreetype6                    2.4.8-1ubuntu2.7

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

References:
  https://usn.ubuntu.com/4126-2
  https://usn.ubuntu.com/4126-1
  CVE-2015-9381, CVE-2015-9382, CVE-2015-9383
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