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From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: "ubuntu-security-announce@lists.ubuntu.com"
 <ubuntu-security-announce@lists.ubuntu.com>
Message-ID: <363452fb-73b2-60d8-0d66-e9c3eccde115@canonical.com>
Subject: [USN-3060-1] GD library vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-3060-1
August 10, 2016

libgd2 vulnerabilities
==========================================================================

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

- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

The GD library could be made to crash or run programs if it processed a
specially crafted image file.

Software Description:
- libgd2: GD Graphics Library

Details:

It was discovered that the GD library incorrectly handled certain malformed
TGA images. If a user or automated system were tricked into processing a
specially crafted TGA image, an attacker could cause a denial of service.
(CVE-2016-6132, CVE-2016-6214)

It was discovered that the GD library incorrectly handled memory when using
gdImageScale(). A remote attacker could possibly use this issue to cause a
denial of service or possibly execute arbitrary code. (CVE-2016-6207)

Update instructions:

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

Ubuntu 16.04 LTS:
  libgd3                          2.1.1-4ubuntu0.16.04.3

Ubuntu 14.04 LTS:
  libgd3                          2.1.0-3ubuntu0.3

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

References:
  http://www.ubuntu.com/usn/usn-3060-1
  CVE-2016-6132, CVE-2016-6207, CVE-2016-6214

Package Information:
  https://launchpad.net/ubuntu/+source/libgd2/2.1.1-4ubuntu0.16.04.3
  https://launchpad.net/ubuntu/+source/libgd2/2.1.0-3ubuntu0.3



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