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                                   CERT-Renater

                        Note d'Information No. 2009/VULN320
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DATE                      : 07/08/2009

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Solaris, OpenSolaris running Solaris XScreenSaver.

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http://sunsolve.sun.com/search/document.do?assetkey=1-66-258928-1
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Solution Type Sun Alert

Solution  258928 :   A Security Vulnerability May Allow Popup Windows to Appear
Through the Solaris XScreenSaver Program on Xorg(1) Servers

Bug ID
6825374

Product
Solaris 8 Operating System
Solaris 9 Operating System
Solaris 10 Operating System
OpenSolaris

Date of Resolved Release
05-Aug-2009

SA Document Body

A Security Vulnerability May Allow Popup Windows to Appear Through the Solaris
XScreenSaver Program on Xorg(1) Servers

1. Impact

A security vulnerability in the Solaris XScreenSaver (see xscreensaver(1))
program may allow popup windows to appear through the lock screen and expose
sensitive data on Xorg(1) servers (or Xnewt(1M) servers in the case of Sun Ray
setups).

2. Contributing Factors

This issue can occur in the following releases:

SPARC Platform

    * X11 6.4.1 (for Solaris 8) without patch 115298-02
    * Solaris 9 without patch 115158-11
    * Solaris 10 without patch 120094-23
    * OpenSolaris based upon builds snv_01 through snv_119

x86 Platform

    * X11 6.4.1 (for Solaris 8) without patch 115299-02
    * Solaris 9 without patch 115159-11
    * Solaris 10 without patch 120095-23
    * OpenSolaris based upon builds snv_01 through snv_119

OpenSolaris distributions may include additional bug fixes above and beyond the
build from which it was derived. The base build can be derived as follows:

$ uname -v
snv_119

Notes:

   1. This issue only occurs when the XScreenSaver program is used with the
   Xorg server (or derivatives such as Xnewt(1M) from the Sun Ray software),
   however, this includes the scenario where the Xorg server is used remotely,
   therefore releases such as Solaris 8 and 9 which do not include the Xorg
   server may still be impacted if they are used remotely to connect to another
   host that does contain the Xorg server.

   To determine if the system is running Xorg, the following command can be
   run:

   $ ps -ef  |  grep  Xorg

   2. Systems are only impacted by this issue if they have the package
   SUNWxwsvr installed. To determine if SUNWxwsvr is installed, the following
   command can be run:

   $ pkginfo SUNWxwsvr
   system    SUNWxwsvr XScreenSaver

3. Symptoms

There are no predictable symptoms that would indicate the described
vulnerability has been exploited to reveal sensitive information.

4. Workaround

There is no workaround for this issue. Please see the Resolution section below.

5. Resolution

This issue is addressed in the following releases:

SPARC Platform

    * X11 6.4.1 (for Solaris 8) with patch 115298-02 or later
    * Solaris 9 with patch 115158-11 or later
    * Solaris 10 with patch 120094-23 or later
    * OpenSolaris based upon builds snv_120 or later

x86 Platform

    * X11 6.4.1 (for Solaris 8) with patch 115299-02 or later
    * Solaris 9 with patch 115159-11 or later
    * Solaris 10 with patch 120095-23 or later
    * OpenSolaris based upon builds snv_120 or later

For more information on Security Sun Alerts, see Technical Instruction ID
213557.

This Sun Alert notification is being provided to you on an "AS IS" basis. This
Sun Alert notification may contain information provided by third parties. The
issues described in this Sun Alert notification may or may not impact your
system(s). Sun makes no representations, warranties, or guarantees as to the
information contained herein. ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING
THIS DOCUMENT YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE OUT
OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN. This Sun Alert
notification contains Sun proprietary and confidential information. It is being
provided to you pursuant to the provisions of your agreement to purchase
services from Sun, or, if you do not have such an agreement, the Sun.com Terms
of Use. This Sun Alert notification may only be used for the purposes
contemplated by these agreements.

Copyright 2000-2009 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
CA 95054 U.S.A. All rights reserved.



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