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==========================================================================
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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