Security Vulnerability in Solaris Trusted Extensions may Prevent XScreenSaver (xscreensaver(1)) From Running

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A security vulnerability in Solaris Trusted Extensions may result in a condition that prevents XScreenSaver (xscreensaver(1)) from running:

1. Impact

A security vulnerability in Solaris Trusted Extensions may result in a condition that prevents XScreenSaver (xscreensaver(1)) from running. The screen may not lock if a user chooses to lock the screen from the JDS menu or if the screen is left unattended. This condition occurs when trying to restart XScreenSaver using "xscreensaver-demo".

2. Contributing Factors

This issue can occur in the following releases:

SPARC Platform

• Solaris 10 with patch 125533-14 or later and without patch 120094-28
  

x86 Platform

• Solaris 10 with patch 125534-14 or later and without patch 120095-28

Note 1:  Solaris 8, Solaris 9, and OpenSolaris are not impacted by this issue.

Note 2:  This issue only impacts Solaris 10 systems that have installed and configured Solaris Trusted Extensions.

To determine if a system is configured with Trusted Extensions, the following command can be run:

    $ svcs /system/labeld
    STATE          STIME      FMRI
    online  07:08:09   svc:/system/labeld:default

If the state is disabled or if "/system/labeld" service is not listed, then the system is not configured to use Trusted Extensions.

Note 3:  This issue only occurs when a user is logged into JDS.

3. Symptoms

If the described issue occurs, the XScreenSaver (xscreensaver(1)) process will not be running. This can be determined by running the following command:

   $ /usr/openwin/bin/xscreensaver-command -version

If the above command reports:

    no screensaver is running on display <hostname>:NN.N

then the XScreenSaver (xscreensaver(1)) process is not running.

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

• Solaris 10 with patch 120094-28 or later
  

x86 Platform

• Solaris 10 with patch 120095-28 or later

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

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