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______________________________________________________________________________

                        SuSE Security Announcement

        Package:                OpenLDAP2
        Announcement-ID:        SuSE-SA:2002:047
        Date:                   Fri Dec  6 11:11:11 MET 2002
        Affected products:      7.1, 7.2, 7.3, 8.0,
                                SuSE eMail Server III, 3.1,
                                SuSE Linux Connectivity Server,
                                SuSE Linux Enterprise Server 7,
                                SuSE Linux Office Server
        Vulnerability Type:     remote command execution
        Severity (1-10):        6
        SuSE default package:   no
        Cross References:       -

    Content of this advisory:
        1) security vulnerability resolved: Buffer overflows in openldap2.
           problem description, discussion, solution and upgrade information
        2) pending vulnerabilities, solutions, workarounds:
            - traceroute-nanog
            - gnuplot
        3) standard appendix (further information)

______________________________________________________________________________

1)  problem description, brief discussion, solution, upgrade information

    OpenLDAP is the Open Source implementation of the Lightweight Directory
    Access Protocol (LDAP) and is used in network environments for distributing
    certain information such as X.509 certificates or login information.

    The SuSE Security Team reviewed critical parts of that package and found
    several buffer overflows and other bugs remote attackers could exploit
    to gain access on systems running vulnerable LDAP servers.
    In addition to these bugs, various local exploitable bugs within the
    OpenLDAP2 libraries (openldap2-devel package) have been fixed.

    Since there is no workaround possible except shutting down the LDAP server,
    we strongly recommend an update.

    Please download the update package for your distribution and verify its
    integrity by the methods listed in section 3) of this announcement.
    Then, install the package using the command "rpm -Fhv file.rpm" to
 apply
    the update.
    Our maintenance customers are being notified individually. The packages
    are being offered to install from the maintenance web.

    To be sure the update takes effect you have to restart the LDAP server
    by executing the following command as root:

        /etc/rc.d/ldap restart


    i386 Intel Platform:

    SuSE-8.0:
    openldap2-2.0.23-143.i386.rpm
      0facbec09078e1a849b629a335d25dcf
    openldap2-devel-2.0.23-143.i386.rpm
      90b2aff137bd510930835b7a7cb7bc1e
    patch rpm(s):
    openldap2-2.0.23-143.i386.patch.rpm
      aac122b6dda874c97d2e3f8e43a33897
    openldap2-devel-2.0.23-143.i386.patch.rpm
      e032d25cd37167b956a41b45e7c1bc60
    source rpm(s):
    openldap2-2.0.23-143.src.rpm
      773c24a1654055b692dbfe6c1ce436f2

    SuSE-7.3:
    ftp://ftp.suse.com/pub/suse/i386/update/7.3/n2/openldap2-2.0.12-44.i386.rpm
      0c3078060330559ae49d67cdb0def908
    openldap2-devel-2.0.12-44.i386.rpm
      4d09ba68655344abc273f7cb67fee482
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/openldap2-2.0.12-44.src.rpm
      58706b1104fec0d6a6533e5f6decb8cd


    SuSE-7.2:
    ftp://ftp.suse.com/pub/suse/i386/update/7.2/n2/openldap2-2.0.11-67.i386.rpm
      28f575d89d8fbb9c269b158d12b599a6
    openldap2-devel-2.0.11-67.i386.rpm
      7edf8a034f6de9ec15fd0d0e683e25e3
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/openldap2-2.0.11-67.src.rpm
      1aac2bc81f82065513845a0e923433bf

    SuSE-7.1:
    ftp://ftp.suse.com/pub/suse/i386/update/7.1/n2/openldap2-2.0.11-66.i386.rpm
      901b6452a24470b5cf39223e4b4a611d
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/openldap2-2.0.11-66.src.rpm
      d5d0a0a397f919b2f5d644c517dd56a5


    Sparc Platform:

    SuSE-7.3:
    openldap2-2.0.12-27.sparc.rpm
      4639159e2de3a53115b4a7a918a79864
    openldap2-devel-2.0.12-27.sparc.rpm
      609773f10ce2ea8953f4fc8772f4af23
    source rpm(s):
    openldap2-2.0.12-27.src.rpm
      70758c3e7c36f10a53980eaeb6bddea3

    AXP Alpha Platform:

    SuSE-7.1:
    ftp://ftp.suse.com/pub/suse/axp/update/7.1/n2/openldap2-2.0.11-30.alpha.rpm
      3d6bf0861070044c54ed52e8777192b6
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/axp/update/7.1/zq1/openldap2-2.0.11-30.src.rpm
      3e0867844268b399d6ac2b9788d017f4


    PPC Power PC Platform:

    SuSE-7.3:
    ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n2/openldap2-2.0.12-54.ppc.rpm
      fa2268bf1629c69db048371b67a1e177
    openldap2-devel-2.0.12-54.ppc.rpm
      e5f6ea2f05c6f5904834e8083ef8502b
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/openldap2-2.0.12-54.src.rpm
      5c88d479f0f54b6b933f11a63e8d0c42

    SuSE-7.1:
    ftp://ftp.suse.com/pub/suse/ppc/update/7.1/n2/openldap2-2.0.11-27.ppc.rpm
      b6630f01be5e342cba2167a1f69583bf
    source rpm(s):
    ftp://ftp.suse.com/pub/suse/ppc/update/7.1/zq1/openldap2-2.0.11-27.src.rpm
      5664341323793814db38b162d4cf07dc

______________________________________________________________________________

2)  Pending vulnerabilities in SuSE Distributions and Workarounds:

    - traceroute-nanog
    Due to recent postings on bugtraq@securityfocus.com new
    traceroute-nanog packages are currently being built and
    will be released as soon as possible.

    - gnuplot
    An error in a patch for french documentation added by SuSE leads to a
    buffer overflow in gnuplot that can be exploited to gain root
    privileges by a local attacker. gnuplot is installed setuid root on
    SuSE Linux before (excluding) 8.0 to be able to display graphics with
    the SVGA library. We have provided update packages at the usual
    location that fix the vulnerability.

______________________________________________________________________________

3)  standard appendix: authenticity verification, additional information

  - Package authenticity verification:

    SuSE update packages are available on many mirror ftp servers all over
    the world. While this service is being considered valuable and important
    to the free and open source software community, many users wish to be
    sure about the origin of the package and its content before installing
    the package. 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) md5sums as provided in the (cryptographically signed) announcement.
    2) using the internal gpg signatures of the rpm package.

    1) execute the command
        md5sum <name-of-the-file.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
       announcement. Since the announcement containing the checksums is
       cryptographically signed (usually using the key security@suse.de),
       the checksums show proof of the authenticity of the package.
       We disrecommend to subscribe to security lists which cause the
       email message containing the announcement to be modified so that
       the signature does not match after transport through the mailing
       list software.
       Downsides: You must be able to verify the authenticity of the
       announcement in the first place. If RPM packages are being rebuilt
       and a new version of a package is published on the ftp server, all
       md5 sums for the files are useless.

    2) 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, where <file.rpm> is the
       filename of the rpm package that you have downloaded. Of course,
       package authenticity verification can only target an un-installed rpm
       package file.
       Prerequisites:
        a) gpg is installed
        b) The package is signed using a certain key. The public part of this
           key must be installed by the gpg program in the directory
           ~/.gnupg/ under the user's home directory who performs the
           signature verification (usually root). You can import the key
           that is used by SuSE in rpm packages for SuSE Linux by saving
           this announcement to a file ("announcement.txt") and
           running the command (do "su -" to be root):
            gpg --batch; gpg < announcement.txt | gpg --import
           SuSE Linux distributions version 7.1 and thereafter install the
           key "build@suse.de" upon installation or upgrade, provided
 that
           the package gpg is installed. The file containing the public key
           is placed at the top-level directory of the first CD (pubring.gpg)
           and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de .


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

    suse-security@suse.com
        -   general/linux/SuSE security discussion.
            All SuSE security announcements are sent to this list.
            To subscribe, send an email 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 email 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> respectively.

    =====================================================================
    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,
    it is desired that the clear-text signature shows proof of the
    authenticity of the text.
    SuSE Linux AG makes 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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-- 
~
~ perl self.pl
~ $_='print"\$_=\47$_\47;eval"';eval
~ krahmer@suse.de - SuSE Security Team
~



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