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AUSCERT External Security Bulletin Redistribution
Moderate: NetworkManager security update
17 February 2010
AusCERT Security Bulletin Summary
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 5
Red Hat Enterprise Linux WS/Desktop 5
Impact/Access: Unauthorised Access -- Remote with User Interaction
CVE Names: CVE-2009-4145 CVE-2009-4144
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Red Hat Security Advisory
Synopsis: Moderate: NetworkManager security update
Advisory ID: RHSA-2010:0108-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2010-0108.html
Issue date: 2010-02-16
CVE Names: CVE-2009-4144 CVE-2009-4145
Updated NetworkManager packages that fix two security issues are now
available for Red Hat Enterprise Linux 5.
This update has been rated as having moderate security impact by the Red
Hat Security Response Team.
2. Relevant releases/architectures:
RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
NetworkManager is a network link manager that attempts to keep a wired or
wireless network connection active at all times.
A missing network certificate verification flaw was found in
NetworkManager. If a user created a WPA Enterprise or 802.1x wireless
network connection that was verified using a Certificate Authority (CA)
certificate, and then later removed that CA certificate file,
NetworkManager failed to verify the identity of the network on the
following connection attempts. In these situations, a malicious wireless
network spoofing the original network could trick a user into disclosing
authentication credentials or communicating over an untrusted network.
An information disclosure flaw was found in NetworkManager's
nm-connection-editor D-Bus interface. If a user edited network connection
options using nm-connection-editor, a summary of those changes was
broadcasted over the D-Bus message bus, possibly disclosing sensitive
information (such as wireless network authentication credentials) to other
local users. (CVE-2009-4145)
Users of NetworkManager should upgrade to these updated packages, which
contain backported patches to correct these issues.
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.
This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
5. Bugs fixed (http://bugzilla.redhat.com/):
546117 - CVE-2009-4145 NetworkManager: information disclosure by nm-connection-editor
546795 - CVE-2009-4144 NetworkManager: WPA enterprise network not verified when certificate is removed
6. Package List:
Red Hat Enterprise Linux Desktop (v. 5 client):
RHEL Desktop Workstation (v. 5 client):
Red Hat Enterprise Linux (v. 5 server):
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
The Red Hat security contact is <firstname.lastname@example.org>. More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2010 Red Hat, Inc.
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