K-001: Four Vulnerabilities in the Common Desktop Environment

PROBLEM:       Multiple vulnerabilities exist in some distributions of the
               Common Desktop Environment (CDE).
PLATFORM:      Any system running the Common Desktop Environment (CDE).
DAMAGE:        Each vulnerability may allow arbitrary code on a vulnerable
               system to be run as root by a local user. The ToolTalk
               ttsession vulnerability may also allow arbitrary code to be run
               as root by a remote user.
SOLUTION:      Apply available vendor patches.
VULNERABILITY  Risk is high. These vulnerabilities have been published on the
ASSESSMENT:    internet. Each vulnerability, independent of the others, can
               lead to a total system compromise.

Appended on December 29, 1999 with additional patch updates from Sun
Microsystems. 

[Start CERT Advisory]

CERT Advisory CA-99-11 Four Vulnerabilities in the Common Desktop Environment

   Original release date: September 13, 1999
   Last revised: October 04, 1999 Updated vendor information for Sun
     Microsystems, Inc.
   Source: CERT/CC

   A complete revision history is at the end of this file.

Systems Affected

   *  Systems running the Common Desktop Environment (CDE)

I. Description

   Multiple vulnerabilities have been identified in some distributions of the
   Common Desktop Environment (CDE). These vulnerabilities are different from
   those discussed in CA-98.02. We recommend that you install appropriate
   vendor patches as soon as possible (see Section III below). Until you can
   do so, we encourage you to disable or uninstall vulnerable copies of the
   CDE package. Note that disabling these programs will severely affect the
   utility of the CDE environment.

   At this time, the CERT/CC has not received any reports of these
   vulnerabilities being exploited by intruders.

Vulnerability #1: ToolTalk ttsession uses weak RPC authentication mechanism

   The ToolTalk messaging server ttsession allows independent applications to
   communicate without having direct knowledge of each other. Applications can
   communicate through an associated ttsession which delivers messages via RPC
   calls between interested agents.

   On many systems, ttsession uses AUTH_UNIX authentication (a client-based
   security option) by default. When messages are received, ttsession uses
   certain environment variables supplied by the client to determine how the
   message is handled. Because of this, the ttsession process can be
   manipulated to execute unauthorized arbitrary programs with the privileges
   of the running ttsession.

Vulnerability #2: CDE dtspcd relies on file-system based authentication

   The network daemon dtspcd (a CDE desktop subprocess control program)
   accepts CDE requests from clients to execute commands and launch
   applications remotely.

   When a client makes a request, the dtspcd daemon asks the client to create
   a file that has a predictable name so that the daemon can authenticate the
   request. If a local user can manipulate the files used for authentication,
   then that user can craft arbitrary commands that may run as root.

Vulnerability #3: CDE dtaction buffer overflow

   The dtaction utility allows applications or shell scripts that otherwise
   are not connected into the CDE development environment, to request that CDE
   actions be performed.

   A buffer overflow can occur in some implementations of dtaction when a
   username argument greater than 1024 bytes is used.

Vulnerability #4: CDE ToolTalk shared library buffer overflow in TT_SESSION

   There is a vulnerability in some implementations of the ToolTalk shared
   library which allows the TT_SESSION environment variable buffer to
   overflow. A setuid root program using a vulnerable ToolTalk library, such
   as dtsession, can be exploited to run arbitrary code as root.


II. Impact

Vulnerability #1: ToolTalk ttsession uses weak RPC authentication mechanism

   A local or remote user may be able to use this vulnerability to run
   commands on a vulnerable system with the same privileges of the attacked
   ttsession. For this attack to work, a ttsession must be actively running on
   the system attacked. The ttsession daemon is started whenever a user logs
   in using the CDE desktop, or upon interaction with CDE at some future
   point.

Vulnerability #2: CDE dtspcd relies on file-system based authentication

   A vulnerable dtspcd may allow a local user to run arbitrary commands as
   root.

Vulnerability #3: CDE dtaction buffer overflow

   A local user may be able to exploit this vulnerability to execute arbitrary
   code with root privileges.

Vulnerability #4: CDE ToolTalk shared library buffer overflow in TT_SESSION

   A local user may be able to exploit this vulnerability to execute arbitrary
   code with root privileges.


III. Solution

Install appropriate patches from your vendor

We recommend installing vendor patches as soon as possible and disabling the
vulnerable programs until you can do so (or uninstalling the entire CDE
package if not needed). Note that disabling these programs will severely
affect the utility of the CDE environment.

Appendix A contains information provided by vendors for this advisory. We will
update the appendix as we receive more information. If you do not see your
vendor's name, the CERT/CC did not hear from that vendor. Please contact your
vendor directly.

Appendix A. Vendor Information

Compaq Computer Corporation

Problem #1

CDE ToolTalk session daemon & ToolTalk shared library overflow

This potential security problem has been resolved and a patch for this
problem has been made available for Tru64 UNIX V4.0D, V4.0E, V4.0F and
V5.0.

This patch can be installed on:

 V4.0D-F, all patch kits
 V5.0, all patch kits

*This solution will be included in a future distributed release of Compaq's
Tru64/ DIGITAL UNIX.

This patch may be obtained from the World Wide Web at the following FTP
address:

http://www.service.digital.com/patches
The patch file name is SSRT0617_ttsession.tar.Z

Problem #2

Compaq's Tru64/DIGITAL UNIX is not vulnerable.

Problem #3

CDE dtaction buffer overflow

This potential security problem has been resolved and a patch for this
problem has been made available for Tru64 UNIX V4.0D, V4.0E and V4.0F.

This patch can be installed on:

V4.0D Patch kit BL11 or BL12
V4.0E Patch kit BL1 or BL12
V4.0F Patch kit BL1

*This solution will be included in a future distributed release of Compaq's
Tru64/ DIGITAL UNIX.

This patch may be obtained from the World Wide Web at the following FTP
address:

http://www.service.digital.com/patches

The patch file name is SSRT0615U_dtaction.tar.Z

Problem #4

CDE ToolTalk shared library overflow

See solution fix described in Problem #1.

Data General

DG/UX is not subject to any of these vulnerabilities.

Fujitsu

Fujitsu's UXP/V operating system is not vulnerable to any of these
vulnerabilities.

Hewlett-Packard Company

HP-9000 Series 700/800 HP-UX releases 10.X and 11.0 systems with CDE
patches previously recommended in HP Security Bulletins are not vulnerable
to vulnerabilities #2, #3, and #4.

All HP-UX 10.X and 11.0 systems running CDE are vulnerable to vulnerability
#1.

[Start Hewlett-Packard Company Update]

HP Support Information Digests

==============================================================================
o  HP Electronic Support Center World Wide Web Service
   ---------------------------------------------------

   If you subscribed through the HP Electronic Support Center and would
   like to be REMOVED from this mailing list, access the
   HP Electronic Support Center on the World Wide Web at:

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   Login using your HP Electronic Support Center User ID and Password.
   Then select Support Information Digests.  You may then unsubscribe from the
   appropriate digest.
==============================================================================

Digest Name:  Daily Security Bulletins Digest
    Created:  Mon Sep 20  3:00:03 PDT 1999

Table of Contents:

Document ID      Title
---------------  -----------
HPSBUX9909-103   Security Vulnerability in CDE ttsession (Rev.01)

The documents are listed below.
------------------------------------------------------------------------------

Document ID:  HPSBUX9909-103
Date Loaded:  19990919
      Title:  Security Vulnerability in CDE ttsession (Rev.01)

-------------------------------------------------------------------------
**REVISED 01** HEWLETT-PACKARD COMPANY SECURITY BULLETIN: #00103, 14 Sep. 99
Last Revised: 20 Sep. 99
-------------------------------------------------------------------------

The information in the following Security Bulletin should be acted upon
as soon as possible.  Hewlett-Packard Company will not be liable for any
consequences to any customer resulting from customer's failure to fully
implement instructions in this Security Bulletin as soon as possible.

-------------------------------------------------------------------------
PROBLEM:  ttsession uses weak RPC authentication mechanism

PLATFORM: HP-9000 Series 700/800 HP-UX releases 10.X & 11.00 running CDE.

DAMAGE:   Allows remote and local users to execute programs with the
          privileges of the running ttsession.

SOLUTION: **REVISED 01**
          Install the applicable patch.

AVAILABILITY: The patches for 10.2X and 11.00 are available now.
          NOTE: This bulletin will be revised when other patches
                are available.
CHANGE SUMMARY: This revision affects only HP-UX release 10.24.
-------------------------------------------------------------------------
I.
   A. Background
      This problem has been reported in CERT Advisory CA-99-11.

      The advisory reports four vulnerabilities:

        #1: ToolTalk ttsession uses weak RPC authentication mechanism
        #2: CDE dtspcd relies on file-system based authentication
        #3: CDE dtaction buffer overflow
        #4: CDE ToolTalk shared library buffer overflow in TT_SESSION

      With the patches recommended in previous security bulletins
      HP-UX releases 10.X and 11.00 are not vulnerable to #2, #3, nor #4.

      To avoid vulnerability #1 install the applicable patch below.

   B. Fixing the problem - Install the applicable patch:
              HP-UX release 10.10      In progress;
              HP-UX release 10.20      PHSS_19747;
------->>>>   HP-UX release 10.24      PHSS_19819;
              HP-UX release 11.00      PHSS_19748.

      Note:  HP-UX release 10.30 was a development release prior to
             the availability of HP-UX release 11.00.  HP-UX release
             10.30 will not be patched.

   C. To subscribe to automatically receive future NEW HP Security
      Bulletins from the HP Electronic Support Center via electronic
      mail, do the following:

      Use your browser to get to the HP Electronic Support Center page
      at:

        http://us-support.external.hp.com
               (for US, Canada, Asia-Pacific, & Latin-America)
        http://europe-support.external.hp.com
(for Europe)

      Login with your user ID and password (or register for one).
      Remember to save the User ID assigned to you, and your password.
      Once you are in the Main Menu:
      To -subscribe- to future HP Security Bulletins,
        click on "Support Information Digests".
      To -review- bulletins already released from the main Menu,
        click on the "Search Technical Knowledge Database."

      Near the bottom of the next page, click on "Browse the HP
      Security Bulletin Archive".
      Once in the archive there is another link to our current Security
      Patch Matrix.  Updated daily, this matrix categorizes security
      patches by platform/OS release, and by bulletin topic.

      The security patch matrix is also available via anonymous ftp:

      us-ffs.external.hp.com
      ~ftp/export/patches/hp-ux_patch_matrix

   D. To report new security vulnerabilities, send email to

       security-alert@hp.com

      Please encrypt any exploit information using the security-alert
      PGP key, available from your local key server, or by sending a
      message with a -subject- (not body) of 'get key' (no quotes) to
      security-alert@hp.com.

     Permission is granted for copying and circulating this Bulletin to
     Hewlett-Packard (HP) customers (or the Internet community) for the
     purpose of alerting them to problems, if and only if, the Bulletin
     is not edited or changed in any way, is attributed to HP, and
     provided such reproduction and/or distribution is performed for
     non-commercial purposes.

     Any other use of this information is prohibited. HP is not liable
     for any misuse of this information by any third party.
________________________________________________________________________

-----End of Document ID:  HPSBUX9909-103--------------------------------------

[End Hewlett-Packard Company Update]

 IBM Corporation

All releases of AIX version 4 are vulnerable to vulnerabilities #1, #3, and
#4. AIX is not vulnerable to #2. The following APARs will be available
soon:

      AIX 4.1.x:  IY03125  IY03847
      AIX 4.2.x:  IY03105  IY03848
      AIX 4.3.x:  IY02944  IY03849

Customers that do not require the CDE desktop functionality can disable CDE
by restricting access to the CDE daemons and removing the dt entry from
/etc/inittab. Run the following commands as root to disable CDE:

      # /usr/dt/bin/dtconfig -d
      # chsubserver -d -v dtspc
      # chsubserver -d -v ttdbserver
      # chsubserver -d -v cmsd
      # chown root.system /usr/dt/bin/*
      # chmod 0 /usr/dt/bin/*

For customers that require the CDE desktop functionality, a temporary fix
is available via anonymous ftp from:

ftp://aix.software.ib
m.com/aix/efixes/security/cdecert.tar.Z

   Filename        sum             md5
   =================================================================
   dtaction_4.1    32885    18     82af470bbbd334b240e874ff6745d8ca
   dtaction_4.2    52162    18     b10f21abf55afc461882183fbd30e602
   dtaction_4.3    56550    19     6bde84b975db2506ab0cbf9906c275ed
   libtt.a_4.1     29234  2132     f5d5a59956deb8b1e8b3a14e94507152
   libtt.a_4.2     21934  2132     73f32a73873caff06057db17552b8560
   libtt.a_4.3     12154  2118     b0d14b9fe4a483333d64d7fd695f084d
   ttauth          56348    31     495828ea74ec4c8f012efc2a9e6fa731
   ttsession_4.1   19528   337     bfac4a06b90cbccc0cd494a44bd0ebc9
   ttsession_4.2   46431   338     05949a483c4e390403055ff6961b0816
   ttsession_4.3   54031   339     e1338b3167c7edf899a33520a3adb060

NOTE - This temporary fix has not been fully regression tested. Use the
following steps (as root) to install the temporary fix.

   1. Uncompress and extract the fix.

      # uncompress < cdecert.tar.Z | tar xf -
      # cd cdecert

   2. Replace the vulnerable executables with the temporary fix for
      your version of AIX.

      # (cd /usr/dt/lib && mv libtt.a libtt.a.before_security_fix)
      # (cd /usr/dt/bin && mv ttsession ttsession.before_security_fix)
      # (cd /usr/dt/bin && mv dtaction dtaction.before_security_fix)
      # chown root.system /usr/dt/lib/libtt.a.before_security_fix
      # chown root.system /usr/dt/bin/ttsession.before_security_fix
      # chown root.system /usr/dt/bin/dtaction.before_security_fix
      # chmod 0 /usr/dt/lib/libtt.a.before_security_fix
      # chmod 0 /usr/dt/bin/ttsession.before_security_fix
      # chmod 0 /usr/dt/bin/dtaction.before_security_fix
      # cp ./libtt.a_ /usr/dt/lib/libtt.a
      # cp ./ttsession_ /usr/dt/bin/ttsession
      # cp ./dtaction_ /usr/dt/bin/dtaction
      # cp ./ttauth /usr/dt/bin/ttauth
      # chmod 555 /usr/dt/lib/libtt.a
      # chmod 555 /usr/dt/bin/ttsession
      # chmod 555 /usr/dt/bin/dtaction
      # chmod 555 /usr/dt/bin/ttauth

IBM AIX APARs may be ordered using Electronic Fix Distribution (via the
FixDist program), or from the IBM Support Center. For more information on
FixDist, and to obtain fixes via the Internet, please reference

http://techsu
pport.services.ibm.com/support/rs6000.support/downloads

or send electronic mail to "aixserv@austin.ibm.com" with the word "FixDist"
in the "Subject:" line. To facilitate ease of ordering all security related
APARs for each AIX release, security fixes are periodically bundled into a
cumulative APAR. For more information on these cumulative APARs including
last update and list of individual fixes, send electronic mail to
"aixserv@austin.ibm.com" with the word
"subscribe Security_APARs" in the
"Subject:" line.


Santa Cruz Operation, Inc.

SCO is investigating these vulnerabilities on SCO UnixWare 7. Other SCO
products (OpenServer 5.0.x, UnixWare 2.1.x, Open Server / Open Desktop 3.0
and CMW+) are not vulnerable as CDE is not a component of these releases.

SCO will make patches and status information available at

http://www.sco.com/security.


Silicon Graphics, Inc.

SGI acknowledges the CDE vulnerabilities reported and is currently
investigating. No further information is available at this time. As further
information becomes available, additional advisories will be issued via the
normal SGI security information distribution methods including the wiretap
mailing list.

Until SGI has more definitive information to provide, customers are
encouraged to assume all security vulnerabilities as exploitable and take
appropriate steps according to local site security policies and
requirements.

The SGI Security Headquarters Web page is accessible at the URL

http://www.sgi.com/Support/secur
ity/security.html


Sun Microsystems, Inc.

Vulnerability #1:

Systems running Solaris 7, 2.6, and systems running Solaris 2.5.1, 2.5, and
2.4 installed with CDE are vulnerable if the UNIX authentication mechanism
(default) is used. Sun recommends that sites using CDE use DES as the
authentication mechanism. To set the authentication mechanism to DES, use
the ttsession command with the '-a' option and specify 'des' as the
argument (see ttsession(1) for more information). The use of DES
authentication also requires that the system uses Secure NFS, NIS+, or
keylogin. For more information about Secure NFS, NIS+, or keylogin, please
see the System Administration Guide, Volume II. Information is also
available at:

http://docs.sun.com:80/ab2/coll.47.8/SYSADV2/@Ab2PageView/34908?DwebQuery=s
ecure+rpc

Sun is producing patches for this vulnerability that will not require the
use of the DES authentication mechanism.

Vulnerability #2:

The following patches are available:

    CDE version         SunOS version                   Patch ID
    ___________         _____________                   _________

    1.3                 5.7                             108221-01
    1.3_x86             5.7_x86                         108222-01
    1.2                 5.6                             108199-01
    1.2_x86             5.6_x86                         108200-01
    1.0.2                       5.5.1, 5.5, 5.4                 108205-01
    1.0.2_x86           5.5.1_x86, 5.5_x86, 5.4_x86             108206-01
    1.0.1                       5.5, 5.4                                108252-01
    1.0.1_x86           5.5_x86, 5.4_x86                        108253-01

Vulnerability #3:

The following patches are available:

    CDE version         SunOS version                   Patch ID
    ___________         _____________                   _________

    1.3                 5.7                             108219-01
    1.3_x86             5.7_x86                         108220-01
    1.2                 5.6                             108201-01
    1.2_x86             5.6_x86                         108202-01

Patches for CDE versions 1.0.2 and 1.0.1 are in progress.

Vulnerability #4:

The following patches are available:
SunOS version   Patch ID
_____________   _________

5.7             107893-02
5.7_x86         107894-02

Patches for other supported versions are in progress.
_____________________________________________________________________________

The CERT Coordination Center would like to thank Job de Haas for reporting
these vulnerabilities and working with the vendors to effect fixes.  We would
also like to thank Solutions Atlantic for their efforts in coordinating
vendor solutions.
______________________________________________________________________________

This document is available from: http://www.cert.org/advisories/CA-99-11-
CDE.html
_____________________________________________________________________________

2Revision History
Oct 04, 1999:  Updated vendor information for Sun Microsystems, Inc.
Oct 01, 1999:  Added vendor information for Data General
Sep 13, 1999:  Initial release

[End CERT Advisory]


[  Start Sun Microsystems Advisory  ]
________________________________________________________________________________
                   Sun Microsystems, Inc. Security Bulletin

Bulletin Number:        #00192
Date:                   December 29, 1999
Cross-Ref:              CERT CA-99-11
Title:                  CDE and OpenWindows
________________________________________________________________________________


The information contained in this Security Bulletin is provided "AS IS."
Sun makes no warranties of any kind whatsoever with respect to the information
contained in this Security Bulletin. ALL EXPRESS OR IMPLIED CONDITIONS,
REPRESENTATIONS AND WARRANTIES, INCLUDING ANY WARRANTY OF NON-INFRINGEMENT OR
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE
HEREBY DISCLAIMED AND EXCLUDED TO THE EXTENT ALLOWED BY APPLICABLE LAW.


IN NO EVENT WILL SUN MICROSYSTEMS, INC. BE LIABLE FOR ANY LOST REVENUE,
PROFIT OR DATA, OR FOR DIRECT, SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL
OR PUNITIVE DAMAGES HOWEVER CAUSED AND REGARDLESS OF ANY THEORY OF LIABILITY
ARISING OUT OF THE USE OF OR INABILITY TO USE THE INFORMATION CONTAINED IN
THIS SECURITY BULLETIN, EVEN IF SUN MICROSYSTEMS, INC. HAS BEEN ADVISED OF
THE POSSIBILITY OF SUCH DAMAGES.


If any of the above provisions are held to be in violation of applicable law,
void, or unenforceable in any jurisdiction, then such provisions are waived
to the extent necessary for this disclaimer to be otherwise enforceable in
such jurisdiction.
________________________________________________________________________________


1.  Bulletin Topics


    Sun announces the release of patches for Solaris(tm) 7, 2.6, 2.5.1, 2.5,
    2.4, 2.3 (SunOS(tm) 5.7, 5.6, 5.5.1, 5.5, 5.4, 5.3), and SunOS 4.1.4,
    and 4.1.3_U1 which relate to various vulnerabilities in CDE and
    OpenWindows.

    Sun recommends that you install the patches listed in section 4
    immediately on systems running SunOS 5.7, 5.6, 5.5.1, 5.5, 5.4, 5.3,
    4.1.4, and 4.1.3_U1.

2.  Who is Affected

    Vulnerable:     SunOS 5.7, 5.7_x86, 5.6, 5.6_x86, 5.5.1, 5.5, 5.4, 5.3,
                          4.1.4, and 4.1.3_U1.

    Not vulnerable: All other supported versions of SunOS.

3.  Understanding the Vulnerabilities

    The following vulnerabilities have been identified.


3.1 ToolTalk ttsession default authentication mechanism insecure


    The ToolTalk messaging utility, ttsession, allows independent
    applications to communicate without having direct knowledge of
    each other. The ttsession daemon is started automatically by
    any program that needs to send or receive a ToolTalk message. It uses
    AUTH_UNIX authentication by default. A local or remote attacker may
    manipulate certain environment variables (which are used by ttsession
    to determine how client messages are handled) to execute arbitrary
    commands with the privileges of the running ttsession.

3.2 CDE dtspcd relies on file-system based authentication


    The CDE desktop subprocess control program (dtspcd) is a network
    daemon that accepts requests from clients to execute commands and
    launch applications remotely. By manipulating predictable files used
    for authentication, a local attacker may exploit this vulnerability
    to execute arbitrary commands and gain root access.


3.3 CDE dtaction buffer overflow


    The dtaction utility allows applications or shell scripts, which are
    otherwise not connected into the CDE user environment, to request
    CDE actions be performed. A buffer overflow vulnerability has been
    discovered which may be exploited by a local attacker to execute
    arbitrary instructions and gain root access.


3.4 CDE ToolTalk shared library buffer overflow in TT_SESSION


    A buffer overflow vulnerability has been discovered in the ToolTalk
    shared library which may be exploited by a local attacker to execute
    arbitrary instructions and gain root access.


4.  List of Patches


    Patches for vulnerability described in section 3.1


      SunOS version     Patch ID
      _____________     _________

      5.7               107893-04
      5.7_x86           107894-04
      5.6               105802-11
      5.6_x86           105803-13
      5.5.1             104489-10
      5.5.1_x86         105496-08
      5.5               104428-08
      5.5_x86           105495-06
      5.4               102734-05
                        108636-01 (see Note 1)
      5.4_x86           108641-01
                        108637-01 (see Note 1)
      5.3               Patch will be available in 2 weeks
      4.1.4, 4.1.3_U1   Patch will be available in 2 weeks

      Note 1: Install patch if CDE 1.0.2 or 1.0.1 is installed.


    Patches for vulnerability described in section 3.2

      CDE version       SunOS version                   Patch ID
      ___________       _____________                   _________


      1.3               5.7                             108221-01
      1.3_x86           5.7_x86                         108222-01
      1.2               5.6                             108199-01
      1.2_x86           5.6_x86                         108200-01
      1.0.2             5.5.1, 5.5, 5.4                 108205-01
      1.0.2_x86         5.5.1_x86, 5.5_x86, 5.4_x86     108206-01
      1.0.1             5.5, 5.4                        108252-01
      1.0.1_x86         5.5_x86, 5.4_x86                108253-01


    Patches for vulnerability described in section 3.3

      CDE version       SunOS version                   Patch ID
      ___________       _____________                   _________

      1.3               5.7                             108219-01
      1.3_x86           5.7_x86                         108220-01
      1.2               5.6                             108201-01
      1.2_x86           5.6_x86                         108202-01
      1.0.2             5.5.1, 5.5, 5.4                 108289-02
      1.0.2_x86         5.5.1_x86, 5.5_x86, 5.4_x86     108290-03
      1.0.1             5.5, 5.4                        108254-01
      1.0.1_x86         5.5_x86, 5.4_x86                108255-01

    Patches for vulnerability described in section 3.4

      SunOS version     Patch ID
      _____________     _________

      5.7               107893-04
      5.7_x86           107894-04
      5.6               105802-11
      5.6_x86           105803-13
      5.5.1             104489-10
      5.5.1_x86         105496-08
      5.5               104428-08
      5.5_x86           105495-06
      5.4               102734-05
                        108636-01 (see Note 2)
      5.4_x86           108641-01
                        108637-01 (see Note 2)
      5.3               101495-04
      4.1.4, 4.1.3_U1   100626-10


      Note 2: Install patch if CDE 1.0.2 or 1.0.1 is installed.


_______________________________________________________________________________
APPENDICES


A.  Patches listed in this bulletin are available to all Sun customers at:

    http://sunsolve.sun.com/pub-cgi/show.pl?target=patches/patch-license&nav=pub-patches


B.  Checksums for the patches listed in this bulletin are available at:


    ftp://sunsolve.sun.com/pub/patches/CH
ECKSUMS


C.  Sun security bulletins are available at:


    http://sunsolve.sun.com/pub-cgi/sec
Bulletin.pl

D.  Sun Security Coordination Team's PGP key is available at:


    http://sunsolve.sun.com/pgpkey.txt

E.  To report or inquire about a security problem with Sun software, contact
    one or more of the following:

        - Your local Sun Solution Center
        - Your representative computer security response team, such as CERT
        - Sun Security Coordination Team. Send email to:

                security-alert@sun.com


F.  To receive information or subscribe to our CWS (Customer Warning System)
    mailing list, send email to:

                security-alert@sun.com

    with a subject line (not body) containing one of the following commands:


        Command         Information Returned/Action Taken
        _______         _________________________________


        help            An explanation of how to get information

        key             Sun Security Coordination Team's PGP key

        list            A list of current security topics


        query [topic]   The email is treated as an inquiry and is forwarded to
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        report [topic]  The email is treated as a security report and is
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Copyright 1999 Sun Microsystems, Inc. All rights reserved. Sun,
Sun Microsystems, Solaris and SunOS are trademarks or registered trademarks
of Sun Microsystems, Inc. in the United States and other countries. This
Security Bulletin may be reproduced and distributed, provided that this
Security Bulletin is not modified in any way and is attributed to
Sun Microsystems, Inc. and provided that such reproduction and distribution
is performed for non-commercial purposes.

[  End Sun Microsystems Advisory  ]

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