Hewlett-Packard Company Information for VU#312313

Solaris X Window Font Service (XFS) daemon contains buffer overflow in Dispatch() function

Status

Affected

Vendor Statement

HEWLETT-PACKARD COMPANY SECURITY BULLETIN: HPSBUX0212-228

Originally issued: 4 Dec 2002

reference id: CERT CA-2002-34, SSRT2429

HP Published Security Bulletin HPSBUX0212-228 with solutions for HP 9000 Series 700 and 800 running HP-UX 10.10, 10.20, 10.24, 11.00, 11.04, 11.11, and 11.22

This bulletin is available from the HP IT Resource Center page at: http://itrc.hp.com "Maintenance and Support" then "Support Information Digests" and then "hp security bulletins archive" search for bulletin HPSBUX0212-228.

NOT IMPACTED:

HP Tru64 UNIX, HP NonStop Servers, HP openMVS

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Vendor References

None

Addendum

HP Support Information Digests

===============================================================================
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  ------------------------------

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===============================================================================


Digest Name:  daily HP-UX security bulletins digest
   Created:  Wed Dec  4  8:30:02 EST 2002

Table of Contents:

Document ID      Title
---------------  -----------
HPSBUX0212-227   Sec. Vulnerability in ied(1)
HPSBUX0212-228   SSRT2429 Security Vulnerability in xfs

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


Document ID:  HPSBUX0212-227
Date Loaded:  20021125
     Title:  Sec. Vulnerability in ied(1)

TEXT





 -----------------------------------------------------------------
Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0212-227
Originally issued: 03 Dec 2002
SSRT2421 ied(1) functional defect
-----------------------------------------------------------------

NOTICE: There are no restrictions for distribution of this
Bulletin provided that it remains complete and intact.

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:  the ied(1) command reveals data improperly.

IMPACT:   Potential unauthorized data access.

PLATFORM: All HP 9000 servers running only HP-UX releases 10.10,
         10.20 and 11.00.

SOLUTION: Apply the appropriate patch for the HP-UX release:

                 PHCO_24446   11.00
                PHCO_27560   10.20, 10.10

MANUAL ACTIONS: No - install patch.

AVAILABILITY:  All patches are available now on itrc.hp.com.
----------------------------------------------------------------
A. Background
   HP has learned of a problem in its ied(1) command  which
   allows viewing normally invisible data.

 B. Fixing the problem
   Retrieve and install the patch listed below from
   itrc.hp.com:
                PHCO_24446   11.00
                PHCO_27560   10.20, 10.10

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

    Use your browser to get to the HP IT Resource Center page
   at:

       http://itrc.hp.com

    Use the 'Login' tab at the left side of the screen to login
   using your ID and password.  Use your existing login or the
   "Register" button at the left to create a login, in order to
   gain access to many areas of the ITRC.  Remember to save the
   User ID assigned to you, and your password.

    In the left most frame select "Maintenance and Support".

    Under the "Notifications" section (near the bottom of
   the page), select "Support Information Digests".

    To -subscribe- to future HP Security Bulletins or other
   Technical Digests, click the check box (in the left column)
   for the appropriate digest and then click the "Update
   Subscriptions" button at the bottom of the page.

    or

    To -review- bulletins already released, select the link
   (in the middle column) for the appropriate digest.

    To -gain access- to the Security Patch Matrix, select
   the link for "The Security Bulletins Archive".  (near the
   bottom of the page)  Once in the archive the third link is
   to the current Security Patch Matrix. Updated daily, this
   matrix categorizes security patches by platform/OS release,
   and by bulletin topic.  Security Patch Check completely
   automates the process of reviewing the patch matrix for
   11.XX systems.

    For information on the Security Patch Check tool, see:
   
http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
   displayProductInfo.pl?productNumber=B6834AA

    The security patch matrix is also available via anonymous
   ftp:

    ftp://ftp.itrc.hp.com/export/patches/hp-ux_patch_matrix/

    On the "Support Information Digest Main" page:
   click on the "HP Security Bulletin Archive".

 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.

 ------------------------------------------------------------------

(c) Copyright 2002 Hewlett-Packard Company
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. The information
in this document is subject to change without notice.
Hewlett-Packard Company and the names of HP products referenced
herein are trademarks and/or service marks of Hewlett-Packard
Company.  Other product and company names mentioned herein may be
trademarks and/or service marks of their respective owners.

 ________________________________________________________________
--
-----End of Document ID:  HPSBUX0212-227--------------------------------------


Document ID:  HPSBUX0212-228
Date Loaded:  20021203
     Title:  SSRT2429 Security Vulnerability in xfs

TEXT





 -----------------------------------------------------------------
Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0212-228
Originally issued: 4 December 2002
SSRT2429 Security Vulnerability in xfs
-----------------------------------------------------------------
NOTICE: There are no restrictions for distribution of this Bulletin
provided that it remains complete and intact.

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: Potential buffer overflow in the X Font Server (xfs)

IMPACT: Potential unauthorized access, denial of service.

PLATFORM: HP 9000 Series 700 and 800 running HP-UX 10.10, 10.20,
         10.24, 11.00, 11.04, 11.11, and 11.22

SOLUTION: Until patches are available manually install the
         appropriate fixed version of xfs.

MANUAL ACTIONS: Yes - NonUpdate
               Install the appropriate fixed xfs.

AVAILABILITY:  This bulletin will be updated when patches are
              available.

 ------------------------------------------------------------------
A. Background
   CERT Advisory CA-2002-34 reports an remotely exploitable
   buffer overflow in the X Font Server (xfs).  The versions
   of xfs supplied with HP-UX 10.10, 10.20, 10.24, 11.00, 11.04,
   11.11, and 11.22 are potentially vulnerable.

 B. Recommended solution
   Until patches are released download and manually install
   the appropriate fixed version of xfs:

       10.10  xfs.1010
      10.20  xfs.1020
      10.24  xfs.1020
      11.00  xfs.1100
      11.04  xfs.1100
      11.11  xfs.1111
      11.22  xfs.1111


    Download the appropriate files from:

     System:    hprc.external.hp.com  (192.170.19.51)
    Login:     xfs
    Password:  xfs1

     FTP Access: ftp://xfs:xfs1@hprc.external.hp.com/
            or:
ftp://xfs:xfs1@192.170.19.51/


      Note: There is an ftp defect in IE5 that may result in
           a browser hang.  To work around this:
     - Select Tools -> Internet Options -> Advanced
     - Un-check the option: [ ] Enable folder view for FTP sites.


     The files are:

        xfs.1010
       xfs.1020
       xfs.1100
       xfs.1111


    The cksum output:


        4146829079 147456 xfs.1010
       2943686322 155648 xfs.1020
       1843422197 163840 xfs.1100
       3420832763 176128 xfs.1111

    The md5 output:

        MD5 (xfs.1010) = ac33c55d5242aadd48fb7485bacea12b
       MD5 (xfs.1020) = 8ca2515aeaf6a6838291bc96ad5b41b2
       MD5 (xfs.1100) = 159c5547d0efd51d12e79c7a35c514c4
       MD5 (xfs.1111) = e0896eab16747df27d7c2262041a66c0

    Note: The md5 source is available in HPSBUX9408-016.


    Set "umask 022" and copy the appropriate files to a
   secure directory, for example /.
   Then:

    1. Save the original xfs.

       cp /usr/bin/X11/xfs /usr/bin/X11/xfs.orig

    2. Determine if xfs is running:

       ps -ef | grep xfs

    3. Stop xfs if it is running.

      /sbin/rc2.d/S620xfs stop

    4. Install the appropriate fixed xfs.

      cp /xfs.1010 /usr/bin/X11/xfs   # for 10.10
       or
     cp /xfs.1020 /usr/bin/X11/xfs   # for 10.20 and 10.24
       or
     cp /xfs.1100 /usr/bin/X11/xfs   # for 11.00 and 11.04
       or
     cp /xfs.1111 /usr/bin/X11/xfs   # for 11.11 and 11.22

    5. If xfs had been stopped in step 3, restart it.

      /sbin/rc2.d/S620xfs start

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

    Use your browser to get to the HP IT Resource Center page
   at:

       http://itrc.hp.com

    Use the 'Login' tab at the left side of the screen to login
   using your ID and password.  Use your existing login or the
   "Register" button at the left to create a login, in order to
   gain access to many areas of the ITRC.  Remember to save the
   User ID assigned to you, and your password.

    In the left most frame select "Maintenance and Support".

    Under the "Notifications" section (near the bottom of
   the page), select "Support Information Digests".

    To -subscribe- to future HP Security Bulletins or other
   Technical Digests, click the check box (in the left column)
   for the appropriate digest and then click the "Update
   Subscriptions" button at the bottom of the page.

    or

    To -review- bulletins already released, select the link
   (in the middle column) for the appropriate digest.

    To -gain access- to the Security Patch Matrix, select
   the link for "The Security Bulletins Archive".  (near the
   bottom of the page)  Once in the archive the third link is
   to the current Security Patch Matrix. Updated daily, this
   matrix categorizes security patches by platform/OS release,
   and by bulletin topic.  Security Patch Check completely
   automates the process of reviewing the patch matrix for
   11.XX systems.

    For information on the Security Patch Check tool, see:
   
http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
   displayProductInfo.pl?productNumber=B6834AA

    The security patch matrix is also available via anonymous
   ftp:

    ftp://ftp.itrc.hp.com/export/patches/hp-ux_patch_matrix/

    On the "Support Information Digest Main" page:
   click on the "HP Security Bulletin Archive".



 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.

 ------------------------------------------------------------------

(c)Copyright 2002 Hewlett-Packard Company
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. The information
in this document is subject to change without notice.
Hewlett-Packard Company and the names of HP products referenced
herein are trademarks and/or service marks of Hewlett-Packard
Company.  Other product and company names mentioned herein may be
trademarks and/or service marks of their respective owners.

 ________________________________________________________________
-----End of Document ID:  HPSBUX0212-228--------------------------------------

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