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Ubuntu Security Notice USN-1138-2
May 27, 2011

network-manager, modemmanger update

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

• Ubuntu 10.04 LTS
• Ubuntu 8.04 LTS

Summary:

An attacker could send crafted input to NetworkManager and ModemManager
and cause them to crash.

Software Description:

• modemmanager: Modem connection manager
• network-manager: Network connection manager

Details:

USN-1138-1 fixed a vulnerability in DBus-GLib. NetworkManager and
ModemManager required rebuilding against the updated DBus-GLib to
incorporate the changes.

Original advisory details:

It was discovered that DBus-GLib did not properly verify the access flag of
exported GObject properties under certain circumstances. A local attacker
could exploit this to bypass intended access restrictions or possibly
cause a denial of service.

Update instructions:

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

Ubuntu 10.04 LTS:
libnm-glib2 0.8-0ubuntu3.2
modemmanager 0.3-0ubuntu2.2

Ubuntu 8.04 LTS:
libnm-glib0 0.6.6-0ubuntu5.8.04.3

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

References:
https://launchpad.net/bugs/616517

Package Information:
https://launchpad.net/ubuntu/+source/modemmanager/0.3-0ubuntu2.2
https://launchpad.net/ubuntu/+source/network-manager/0.8-0ubuntu3.2
https://launchpad.net/ubuntu/+source/network-manager/0.6.6-0ubuntu5.8.04.3