ubuntu-security-announce Digest, Vol 111, Issue 11

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Today's Topics:

1. [USN-2057-1] Qt vulnerability (Marc Deslauriers)


----------------------------------------------------------------------

Message: 1
Date: Tue, 17 Dec 2013 18:13:37 -0500
From: Marc Deslauriers <marc.deslauriers@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-2057-1] Qt vulnerability
Message-ID: <52B0DAA1.6080908@canonical.com>
Content-Type: text/plain; charset="utf-8"

==========================================================================
Ubuntu Security Notice USN-2057-1
December 17, 2013

qt4-x11, qtbase-opensource-src vulnerability
==========================================================================

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

- Ubuntu 13.10
- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS

Summary:

Qt could be made to consume resources and hang if it processed XML data.

Software Description:
- qt4-x11: Qt 4 libraries
- qtbase-opensource-src: Qt 5 libraries

Details:

It was discovered that QXmlSimpleReader in Qt incorrectly handled XML
entity expansion. An attacker could use this flaw to cause Qt applications
to consume large amounts of resources, resulting in a denial of service.

Update instructions:

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

Ubuntu 13.10:
libqt4-xml 4:4.8.4+dfsg-0ubuntu18.1
libqt5xml5 5.0.2+dfsg1-7ubuntu11.1

Ubuntu 13.04:
libqt4-xml 4:4.8.4+dfsg-0ubuntu9.5
libqt5xml5 5.0.1+dfsg-0ubuntu4.1

Ubuntu 12.10:
libqt4-xml 4:4.8.3+dfsg-0ubuntu3.2

Ubuntu 12.04 LTS:
libqt4-xml 4:4.8.1-0ubuntu4.5

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

References:
http://www.ubuntu.com/usn/usn-2057-1
CVE-2013-4549

Package Information:
https://launchpad.net/ubuntu/+source/qt4-x11/4:4.8.4+dfsg-0ubuntu18.1
https://launchpad.net/ubuntu/+source/qtbase-opensource-src/5.0.2+dfsg1-7ubuntu11.1
https://launchpad.net/ubuntu/+source/qt4-x11/4:4.8.4+dfsg-0ubuntu9.5
https://launchpad.net/ubuntu/+source/qtbase-opensource-src/5.0.1+dfsg-0ubuntu4.1
https://launchpad.net/ubuntu/+source/qt4-x11/4:4.8.3+dfsg-0ubuntu3.2
https://launchpad.net/ubuntu/+source/qt4-x11/4:4.8.1-0ubuntu4.5




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