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Sicherheit: Mehrere Probleme in gd
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in gd
ID: USN-3030-1
Distribution: Ubuntu
Plattformen: Ubuntu 12.04 LTS, Ubuntu 14.04 LTS, Ubuntu 15.10, Ubuntu 16.04 LTS
Datum: Mo, 11. Juli 2016, 22:30
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5116
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6161
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-7456
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6128
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5766
Applikationen: gd

Originalnachricht

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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: <5783DFC5.2080505@canonical.com>
Subject: [USN-3030-1] GD library vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-3030-1
July 11, 2016

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

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

- Ubuntu 16.04 LTS
- Ubuntu 15.10
- 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:

It was discovered that the GD library incorrectly handled memory when using
gdImageScaleTwoPass(). A remote attacker could possibly use this issue to
cause a denial of service. This issue only affected Ubuntu 14.04 LTS.
(CVE-2013-7456)

It was discovered that the GD library incorrectly handled certain malformed
XBM images. If a user or automated system were tricked into processing a
specially crafted XBM image, an attacker could cause a denial of service.
This issue only affected Ubuntu 14.04 LTS, Ubuntu 15.10 and Ubuntu 16.04
LTS. (CVE-2016-5116)

It was discovered that the GD library incorrectly handled memory when using
_gd2GetHeader(). A remote attacker could possibly use this issue to cause a
denial of service or possibly execute arbitrary code. (CVE-2016-5766)

It was discovered that the GD library incorrectly handled certain color
indexes. A remote attacker could possibly use this issue to cause a denial
of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 15.10 and
Ubuntu 16.04 LTS. (CVE-2016-6128)

It was discovered that the GD library incorrectly handled memory when
encoding a GIF image. A remote attacker could possibly use this issue to
cause a denial of service. (CVE-2016-6161)

Update instructions:

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

Ubuntu 16.04 LTS:
libgd3 2.1.1-4ubuntu0.16.04.2

Ubuntu 15.10:
libgd3 2.1.1-4ubuntu0.15.10.2

Ubuntu 14.04 LTS:
libgd3 2.1.0-3ubuntu0.2

Ubuntu 12.04 LTS:
libgd2-noxpm 2.0.36~rc1~dfsg-6ubuntu2.2
libgd2-xpm 2.0.36~rc1~dfsg-6ubuntu2.2

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

References:
http://www.ubuntu.com/usn/usn-3030-1
CVE-2013-7456, CVE-2016-5116, CVE-2016-5766, CVE-2016-6128,
CVE-2016-6161

Package Information:
https://launchpad.net/ubuntu/+source/libgd2/2.1.1-4ubuntu0.16.04.2
https://launchpad.net/ubuntu/+source/libgd2/2.1.1-4ubuntu0.15.10.2
https://launchpad.net/ubuntu/+source/libgd2/2.1.0-3ubuntu0.2
https://launchpad.net/ubuntu/+source/libgd2/2.0.36~rc1~dfsg-6ubuntu2.2



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