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==========================================================================
Ubuntu Security Notice USN-1176-1
July 26, 2011

dbus vulnerability
==========================================================================

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

- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

DBus could be made to crash if it processed a specially crafted message.

Software Description:
- dbus: simple interprocess messaging system

Details:

It was discovered that DBus did not properly validate the byte order of
messages under certain circumstances. An attacker could exploit this to
cause a denial of service via application crash or potentially obtain
access to sensitive information.

Update instructions:

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

Ubuntu 11.04:
  dbus                            1.4.6-1ubuntu6.1

Ubuntu 10.10:
  dbus                            1.4.0-0ubuntu1.3

Ubuntu 10.04 LTS:
  dbus                            1.2.16-2ubuntu4.3

Ubuntu 8.04 LTS:
  dbus                            1.1.20-1ubuntu3.5

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-1176-1
  CVE-2011-2200

Package Information:
  https://launchpad.net/ubuntu/+source/dbus/1.4.6-1ubuntu6.1
  https://launchpad.net/ubuntu/+source/dbus/1.4.0-0ubuntu1.3
  https://launchpad.net/ubuntu/+source/dbus/1.2.16-2ubuntu4.3
  https://launchpad.net/ubuntu/+source/dbus/1.1.20-1ubuntu3.5



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