SUSE Security Announcement: openldap2-client (SUSE-SA:2006:072)

24 Nov 2006

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______________________________________________________________________________

                        SUSE Security Announcement

        Package:                openldap2-client
        Announcement ID:        SUSE-SA:2006:072
        Date:                   Fri, 24 Nov 2006 15:00:00 +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 Linux Enterprise Server 8
                                SuSE Linux Openexchange Server 4
                                SUSE LINUX Retail Solution 8
                                SuSE Linux School Server
                                SuSE Linux Standard Server 8
                                SUSE SLED 10
                                SUSE SLES 10
                                SUSE SLES 9
                                UnitedLinux 1.0
        Vulnerability Type:     remote denial of service
        Severity (1-10):        7
        SUSE Default Package:   no
        Cross-References:       CVE-2006-5779

    Content of This Advisory:
        1) Security Vulnerability Resolved:
             openldap2 remote denial of service problem
           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

   OpenLDAP libldap's strval2strlen() function contained a bug when
   processing the authcid string of certain Bind Requests, which could
   allow attackers to  cause an affected application (especially the
   OpenLDAP Server) to crash.

   This is tracked by the Mitre CVE ID CVE-2006-5779.

2) Solution or Work-Around

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

3) Special Instructions and Notes

   Please close and restart all running instances of OpenLDAP using
   daemons after the update.

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 <file.rpm>

   to apply the update, replacing <file.rpm> 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/openldap2-client-2.3.19-18.11.i586.rpm
          190a35510d9cdaf9026b09b115f4a809

   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/openldap2-client-2.2.27-6.4.i586.rpm
          8777311fd73e304fb039c5ae0041b805

   SUSE LINUX 9.3:
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/openldap2-client-2.2.23-6.6.i586.rpm
          13211d16f60be2f13dcc7f806e609c15

   Power PC Platform:

   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/openldap2-client-2.3.19-18.11.ppc.rpm
          f82f97b375eb7c04a44d9829c49d246a

   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/openldap2-client-2.2.27-6.4.ppc.rpm
          0fcf7f15c4418fb49d0e969ebb8cb80f

   x86-64 Platform:

   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/openldap2-client-2.3.19-18.11.x86_64.rpm
          1d92e05b10a5a2ac8da28ff0f6d3456a
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/openldap2-client-32bit-2.3.19-18.11.x86_64.rpm
          c0b630dcc8effb762d2e4e20b393300e

   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/openldap2-client-2.2.27-6.4.x86_64.rpm
          31b7c1919384c65adbe3924f645fde0a
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/openldap2-client-32bit-2.2.27-6.4.x86_64.rpm
          49fa838f5c2b409e909245abf96d967f

   SUSE LINUX 9.3:
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/openldap2-client-2.2.23-6.6.x86_64.rpm
          1414359d63ed54bfee51c7b664a611af
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/openldap2-client-32bit-9.3-7.2.x86_64.rpm
          26b59979a32a5f30f3cac5ea15efabfc

   Sources:

   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/src/openldap2-client-2.3.19-18.11.src.rpm
          bba81b7841ae9fa01cb1ed99daf4db25

   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/openldap2-client-2.2.27-6.4.src.rpm
          bbe064bda877ac9c5f497b143358440c

   SUSE LINUX 9.3:
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/openldap2-client-2.2.23-6.6.src.rpm
          f92d303fd9a08ab6a87d5b000e054ef6

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

   UnitedLinux 1.0
   SuSE Linux Openexchange Server 4
   Open Enterprise Server
   Novell Linux POS 9
   Novell Linux Desktop 9
   SuSE Linux Enterprise Server 8
   SuSE Linux Standard Server 8
   SuSE Linux School Server
   SUSE LINUX Retail Solution 8
   SuSE Linux Desktop 1.0
   SUSE SLES 10
   SUSE SLED 10
   SUSE SLES 9
     http://support.novell.com/techcenter/psdb/bb15de3abad130715a6d95ac3c49fde6.h...

______________________________________________________________________________

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 <file>

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

      gpg: Signature made <DATE> using RSA key ID 3D25D3D9
      gpg: Good signature from "SuSE Security Team <security@suse.de>"

    where <DATE> 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 <file.rpm>

       to verify the signature of the package, replacing <file.rpm> 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 <filename.rpm>

       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:

    suse-security@suse.com
        -   General Linux and SUSE security discussion.
            All SUSE security announcements are sent to this list.
            To subscribe, send an e-mail to
                <suse-security-subscribe@suse.com>.

    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
                <suse-security-announce-subscribe@suse.com>.

    For general information or the frequently asked questions (FAQ),
    send mail to <suse-security-info@suse.com> or
    <suse-security-faq@suse.com>.

    =====================================================================
    SUSE's security contact is <security@suse.com> or <security@suse.de>.
    The <security@suse.de> 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.

Type Bits/KeyID     Date       User ID
pub  2048R/3D25D3D9 1999-03-06 SuSE Security Team <security@suse.de>
pub  1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build@suse.de>

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Marcus Meissner

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