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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
Message-ID: <88c10751-5d9f-be28-019a-cad956b72ad8@canonical.com>
Subject: [USN-3213-1] GD library vulnerabilities
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==========================================================================
Ubuntu Security Notice USN-3213-1
February 28, 2017
libgd2 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
- Ubuntu 12.04 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:
Stefan Esser discovered that the GD library incorrectly handled memory when
processing certain images. If a user or automated system were tricked into
processing a specially crafted image, an attacker could cause a denial of
service, or possibly execute arbitrary code. This issue only affected
Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-10166)
It was discovered that the GD library incorrectly handled certain malformed
images. If a user or automated system were tricked into processing a
specially crafted image, an attacker could cause a denial of service.
(CVE-2016-10167)
It was discovered that the GD library incorrectly handled certain malformed
images. If a user or automated system were tricked into processing a
specially crafted image, an attacker could cause a denial of service, or
possibly execute arbitrary code. (CVE-2016-10168)
Ibrahim El-Sayed 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. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and
Ubuntu 16.10. (CVE-2016-6906)
Ibrahim El-Sayed discovered that the GD library incorrectly handled certain
malformed WebP images. If a user or automated system were tricked into
processing a specially crafted WebP image, an attacker could cause a denial
of service, or possibly execute arbitrary code. This issue only affected
Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-6912)
It was discovered that the GD library incorrectly handled creating
oversized images. If a user or automated system were tricked into creating
a specially crafted image, an attacker could cause a denial of service.
(CVE-2016-9317)
It was discovered that the GD library incorrectly handled filling certain
images. If a user or automated system were tricked into filling an image,
an attacker could cause a denial of service. (CVE-2016-9933)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.10:
libgd3 2.2.1-1ubuntu3.3
Ubuntu 16.04 LTS:
libgd3 2.1.1-4ubuntu0.16.04.6
Ubuntu 14.04 LTS:
libgd3 2.1.0-3ubuntu0.6
Ubuntu 12.04 LTS:
libgd2-noxpm 2.0.36~rc1~dfsg-6ubuntu2.4
libgd2-xpm 2.0.36~rc1~dfsg-6ubuntu2.4
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-3213-1
CVE-2016-10166, CVE-2016-10167, CVE-2016-10168, CVE-2016-6906,
CVE-2016-6912, CVE-2016-9317, CVE-2016-9933
Package Information:
https://launchpad.net/ubuntu/+source/libgd2/2.2.1-1ubuntu3.3
https://launchpad.net/ubuntu/+source/libgd2/2.1.1-4ubuntu0.16.04.6
https://launchpad.net/ubuntu/+source/libgd2/2.1.0-3ubuntu0.6
https://launchpad.net/ubuntu/+source/libgd2/2.0.36~rc1~dfsg-6ubuntu2.4
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