-----BEGIN PGP SIGNED MESSAGE-----
AUSCERT External Security Bulletin Redistribution
Moderate: vino security update
22 January 2013
AusCERT Security Bulletin Summary
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 6
Red Hat Enterprise Linux WS/Desktop 6
Impact/Access: Modify Arbitrary Files -- Remote/Unauthenticated
Denial of Service -- Existing Account
Access Confidential Data -- Remote/Unauthenticated
Provide Misleading Information -- Existing Account
CVE Names: CVE-2012-4429 CVE-2011-1165 CVE-2011-1164
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Red Hat Security Advisory
Synopsis: Moderate: vino security update
Advisory ID: RHSA-2013:0169-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0169.html
Issue date: 2013-01-21
CVE Names: CVE-2011-0904 CVE-2011-0905 CVE-2011-1164
An updated vino package that fixes several security issues is now
available for Red Hat Enterprise Linux 6.
The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Vino is a Virtual Network Computing (VNC) server for GNOME. It allows
remote users to connect to a running GNOME session using VNC.
It was found that Vino transmitted all clipboard activity on the system
running Vino to all clients connected to port 5900, even those who had not
authenticated. A remote attacker who is able to access port 5900 on a
system running Vino could use this flaw to read clipboard data without
Two out-of-bounds memory read flaws were found in the way Vino processed
client framebuffer requests in certain encodings. An authenticated client
could use these flaws to send a specially-crafted request to Vino, causing
it to crash. (CVE-2011-0904, CVE-2011-0905)
In certain circumstances, the vino-preferences dialog box incorrectly
indicated that Vino was only accessible from the local network. This could
confuse a user into believing connections from external networks are not
allowed (even when they are allowed). With this update, vino-preferences no
longer displays connectivity and reachable information. (CVE-2011-1164)
There was no warning that Universal Plug and Play (UPnP) was used to open
ports on a user's network router when the "Configure network automatically
to accept connections" option was enabled (it is disabled by default) in
the Vino preferences. This update changes the option's description to avoid
the risk of a UPnP router configuration change without the user's consent.
All Vino users should upgrade to this updated package, which contains
backported patches to resolve these issues. The GNOME session must be
restarted (log out, then log back in) for this update to take effect.
Before applying this update, make sure all previously-released errata
relevant to your system have been applied.
This update is available via the 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/):
553477 - CVE-2011-1164 vino: vino-preferences incorrectly indicates that computer is only reachable over local network
678846 - CVE-2011-1165 vino-preferences does not warn about UPnP especially with no password and no confirmation.
694455 - CVE-2011-0904 vino: Out of bounds read flaw by processing certain client raw encoding framebuffer update requests
694456 - CVE-2011-0905 vino: Out of bounds read flaw by processing certain client tight encoding framebuffer update requests
857250 - CVE-2012-4429 vino: information leak and authentication bypass
6. Package List:
Red Hat Enterprise Linux Desktop (v. 6):
Red Hat Enterprise Linux Server (v. 6):
Red Hat Enterprise Linux Workstation (v. 6):
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 <email@example.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2013 Red Hat, Inc.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.4 (GNU/Linux)
- -----END PGP SIGNATURE-----
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to firstname.lastname@example.org
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
Australian Computer Emergency Response Team
The University of Queensland
Internet Email: email@example.com
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
-----BEGIN PGP SIGNATURE-----
-----END PGP SIGNATURE-----