______________________________________________________________________________

                        SUSE Security Announcement

        Package:                libgsf
        Announcement ID:        SUSE-SA:2006:076
        Date:                   Thu, 14 Dec 2006 12:00:00 +0000
        Affected Products:      Novell Linux Desktop 9
                                Novell Linux POS 9
                                Open Enterprise Server
                                SUSE LINUX 10.1
                                SUSE LINUX 10.0
                                SUSE LINUX 9.3
                                SuSE Linux Desktop 1.0
                                SUSE SLED 10
                                SUSE SLES 10
                                SUSE SLES 9
        Vulnerability Type:     remote code execution
        Severity (1-10):        8
        SUSE Default Package:   yes
        Cross-References:       CVE-2006-4514

    Content of This Advisory:
        1) Security Vulnerability Resolved:
             libgsf buffer overflow
           Problem Description
        2) Solution or Work-Around
        3) Special Instructions and Notes
        4) Package Location and Checksums
        5) Pending Vulnerabilities, Solutions, and Work-Arounds:
            See SUSE Security Summary Report.
        6) Authenticity Verification and Additional Information

______________________________________________________________________________

1) Problem Description and Brief Discussion

   The libgsf library is used by various GNOME programs to handle for
   instance OLE2 data streams.

   Specially crafted OLE documents enabled attackers to use a heap buffer
   overflow for potentially executing code.

   This issue is tracked by the Mitre CVE ID CVE-2006-4514.

2) Solution or Work-Around

   There is no known workaround, please install the update packages.

3) Special Instructions and Notes

   Please close and restart applications using libgsf.

4) Package Location and Checksums

   The preferred method for installing security updates is to use the YaST
   Online Update (YOU) tool. YOU detects which updates are required and
   automatically performs the necessary steps to verify and install them.
   Alternatively, download the update packages for your distribution manually
   and verify their integrity by the methods listed in Section 6 of this
   announcement. Then install the packages using the command

     rpm -Fhv 

   to apply the update, replacing  with the filename of the
   downloaded RPM package.


   x86 Platform:

   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/libgsf-1.13.99-13.7.i586.rpm
          91b1e160b88a4da68781ca4391a0aa7b

   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/libgsf-1.12.1-3.2.i586.rpm
          6b4e5b5ed0e564769a0bb3d0e288b8be

   SUSE LINUX 9.3:
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/libgsf-1.11.1-4.2.i586.rpm
          48555a9c645cae527bdc5315251d662f

   Power PC Platform:

   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/libgsf-1.13.99-13.7.ppc.rpm
          d8c05b0415c9e196c2d1a8cc42ac0402

   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/libgsf-1.12.1-3.2.ppc.rpm
          24e8d5c92f635db2ef3049339ba1754b

   x86-64 Platform:

   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/libgsf-1.13.99-13.7.x86_64.rpm
          6f8ebb0842088a321a15192480a5388d
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/libgsf-32bit-1.13.99-13.7.x86_64.rpm
          bab0e91a620413c92e403bcfdd6d7147

   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/libgsf-1.12.1-3.2.x86_64.rpm
          f9992beea6a3fe27204ebee475ba8234
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/libgsf-32bit-1.12.1-3.2.x86_64.rpm
          b1369a901898a1bfb9fd5ba643dd7291

   SUSE LINUX 9.3:
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/libgsf-1.11.1-4.2.x86_64.rpm
          02e536160da1597a38153d1643de00b4
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/libgsf-32bit-9.3-7.1.x86_64.rpm
          abb66f3f4f3b3cd34382612805878466

   Sources:

   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/src/libgsf-1.13.99-13.7.src.rpm
          0b386df6f643991c71d61dbf07d448fe

   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/libgsf-1.12.1-3.2.src.rpm
          455b6c354c40ac3157a158b8902238c2

   SUSE LINUX 9.3:
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/libgsf-1.11.1-4.2.src.rpm
          7b6bb054f79babd4893be99c331eab2f

   Our maintenance customers are notified individually. The packages are
   offered for installation from the maintenance web:

   Open Enterprise Server
     http://support.novell.com/techcenter/psdb/8925f151052752a744fcfe7924249f34.html

   Novell Linux POS 9
     http://support.novell.com/techcenter/psdb/8925f151052752a744fcfe7924249f34.html

   Novell Linux Desktop 9
     http://support.novell.com/techcenter/psdb/8925f151052752a744fcfe7924249f34.html

   SuSE Linux Desktop 1.0
     http://support.novell.com/techcenter/psdb/8925f151052752a744fcfe7924249f34.html

   SUSE SLES 10
     http://support.novell.com/techcenter/psdb/8925f151052752a744fcfe7924249f34.html

   SUSE SLED 10
     http://support.novell.com/techcenter/psdb/8925f151052752a744fcfe7924249f34.html

   SUSE SLES 9
     http://support.novell.com/techcenter/psdb/8925f151052752a744fcfe7924249f34.html

______________________________________________________________________________

5) Pending Vulnerabilities, Solutions, and Work-Arounds:

   See SUSE Security Summary Report.
______________________________________________________________________________

6) Authenticity Verification and Additional Information

  - Announcement authenticity verification:

    SUSE security announcements are published via mailing lists and on Web
    sites. The authenticity and integrity of a SUSE security announcement is
    guaranteed by a cryptographic signature in each announcement. All SUSE
    security announcements are published with a valid signature.

    To verify the signature of the announcement, save it as text into a file
    and run the command

      gpg --verify 

    replacing  with the name of the file where you saved the
    announcement. The output for a valid signature looks like:

      gpg: Signature made  using RSA key ID 3D25D3D9
      gpg: Good signature from "SuSE Security Team "

    where  is replaced by the date the document was signed.

    If the security team's key is not contained in your key ring, you can
    import it from the first installation CD. To import the key, use the
    command

      gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc

  - Package authenticity verification:

    SUSE update packages are available on many mirror FTP servers all over the
    world. While this service is considered valuable and important to the free
    and open source software community, the authenticity and the integrity of
    a package needs to be verified to ensure that it has not been tampered
    with.

    There are two verification methods that can be used independently from
    each other to prove the authenticity of a downloaded file or RPM package:

    1) Using the internal gpg signatures of the rpm package
    2) MD5 checksums as provided in this announcement

    1) The internal rpm package signatures provide an easy way to verify the
       authenticity of an RPM package. Use the command

        rpm -v --checksig 

       to verify the signature of the package, replacing  with the
       filename of the RPM package downloaded. The package is unmodified if it
       contains a valid signature from build@suse.de with the key ID 9C800ACA.

       This key is automatically imported into the RPM database (on
       RPMv4-based distributions) and the gpg key ring of 'root' during
       installation. You can also find it on the first installation CD and at
       the end of this announcement.

    2) If you need an alternative means of verification, use the md5sum
       command to verify the authenticity of the packages. Execute the command

         md5sum 

       after you downloaded the file from a SUSE FTP server or its mirrors.
       Then compare the resulting md5sum with the one that is listed in the
       SUSE security announcement. Because the announcement containing the
       checksums is cryptographically signed (by security@suse.de), the
       checksums show proof of the authenticity of the package if the
       signature of the announcement is valid. Note that the md5 sums
       published in the SUSE Security Announcements are valid for the
       respective packages only. Newer versions of these packages cannot be
       verified.

  - SUSE runs two security mailing lists to which any interested party may
    subscribe:

    opensuse-security@opensuse.org
        -   General Linux and SUSE security discussion.
            All SUSE security announcements are sent to this list.
            To subscribe, send an e-mail to
                .

    suse-security-announce@suse.com
        -   SUSE's announce-only mailing list.
            Only SUSE's security announcements are sent to this list.
            To subscribe, send an e-mail to
                .

    =====================================================================
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    The  public key is listed below.
    =====================================================================
______________________________________________________________________________

    The information in this advisory may be distributed or reproduced,
    provided that the advisory is not modified in any way. In particular, the
    clear text signature should show proof of the authenticity of the text.

    SUSE Linux Products GmbH provides no warranties of any kind whatsoever
    with respect to the information contained in this security advisory.