Articles / Ubuntu: New DBus-GLib packa…

Ubuntu: New DBus-GLib packages fix security vulnerabilities

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. Updated packages are available from security.ubuntu.com.

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