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Ubuntu Security Notice USN-1138-1
May 26, 2011

dbus-glib vulnerability

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 applications using DBus-GLib and
cause them to crash.

Software Description:

• dbus-glib: GLib bindings for DBus

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:
libdbus-glib-1-2 0.84-1ubuntu0.2

Ubuntu 8.04 LTS:
libdbus-glib-1-2 0.74-2ubuntu0.1

In general, a standard system update will make all the necessary changes.

References:
CVE-2010-1172

Package Information:
https://launchpad.net/ubuntu/+source/dbus-glib/0.84-1ubuntu0.2
https://launchpad.net/ubuntu/+source/dbus-glib/0.74-2ubuntu0.1