This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--===============7877553447131950880==
Content-Type: multipart/signed; micalg=pgp-sha512;
protocol="application/pgp-signature";
boundary="xsKfeVcPDV9DSgbAPX7GaV076FhclaBhB"
This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--xsKfeVcPDV9DSgbAPX7GaV076FhclaBhB
Content-Type: multipart/mixed; boundary="vjWiRIU0xTX5GxHjJmvAJnBo6IUCO5TtS"
From: Marc Deslauriers
Reply-To: Ubuntu Security
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <3178efb7-4f64-89da-7961-a3da1cf7a908@canonical.com>
Subject: [USN-3117-1] GD library vulnerabilities
--vjWiRIU0xTX5GxHjJmvAJnBo6IUCO5TtS
Content-Type: text/plain; charset=utf-
Content-Transfer-Encoding: quoted-printable
==========================================================================
Ubuntu Security Notice USN-3117-1
November 01, 2016
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:
Ibrahim El-Sayed discovered that the GD library incorrectly handled certain
malformed Tiff images. If a user or automated system were tricked into
processing a specially crafted Tiff image, an attacker could cause a denial
of service. (CVE-2016-6911)
Ke Liu discovered that the GD library incorrectly handled certain integers
when processing 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
applied to Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10.
(CVE-2016-7568)
Emmanuel Law discovered that the GD library incorrectly handled certain
strings when creating 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-2016-8670)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.10:
libgd3 2.2.1-1ubuntu3.2
Ubuntu 16.04 LTS:
libgd3 2.1.1-4ubuntu0.16.04.5
Ubuntu 14.04 LTS:
libgd3 2.1.0-3ubuntu0.5
Ubuntu 12.04 LTS:
libgd2-noxpm 2.0.36~rc1~dfsg-6ubuntu2.3
libgd2-xpm 2.0.36~rc1~dfsg-6ubuntu2.3
In general, a standard system update will make all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-3117-1
CVE-2016-6911, CVE-2016-7568, CVE-2016-8670
Package Information:
https://launchpad.net/ubuntu/+source/libgd2/2.2.1-1ubuntu3.2
https://launchpad.net/ubuntu/+source/libgd2/2.1.1-4ubuntu0.16.04.5
https://launchpad.net/ubuntu/+source/libgd2/2.1.0-3ubuntu0.5
https://launchpad.net/ubuntu/+source/libgd2/2.0.36~rc1~dfsg-6ubuntu2.3
--vjWiRIU0xTX5GxHjJmvAJnBo6IUCO5TtS--
--xsKfeVcPDV9DSgbAPX7GaV076FhclaBhB
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=ciPe
-----END PGP SIGNATURE-----
--xsKfeVcPDV9DSgbAPX7GaV076FhclaBhB--
--===============7877553447131950880==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
--
ubuntu-security-announce mailing list
ubuntu-security-announce@lists.ubuntu.com
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce
--===============7877553447131950880==--
|