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Ubuntu Security Notice USN-1874-1
June 13, 2013

dbus vulnerability

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

• Ubuntu 13.04
• Ubuntu 12.10
• Ubuntu 12.04 LTS

Summary:

DBus could be made to crash if it received specially crafted input.

Software Description:

• dbus: simple interprocess messaging system

Details:

Alexandru Cornea discovered that DBus incorrectly handled certain messages.
A local attacker could use this issue to cause system services to crash,
resulting in a denial of service.

Update instructions:

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

Ubuntu 13.04:
libdbus-1-3 1.6.8-1ubuntu6.1

Ubuntu 12.10:
libdbus-1-3 1.6.4-1ubuntu4.1

Ubuntu 12.04 LTS:
libdbus-1-3 1.4.18-1ubuntu1.4

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

References:
http://www.ubuntu.com/usn/usn-1874-1
CVE-2013-2168

Package Information:
https://launchpad.net/ubuntu/+source/dbus/1.6.8-1ubuntu6.1
https://launchpad.net/ubuntu/+source/dbus/1.6.4-1ubuntu4.1
https://launchpad.net/ubuntu/+source/dbus/1.4.18-1ubuntu1.4

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