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______________________________________________________________________________

                        SUSE Security Announcement

        Package:                xpdf, gpdf, kdegraphics3-pdf, pdftohtml, cups
        Announcement-ID:        SUSE-SA:2004:039
        Date:                   Tuesday, Oct 26th 2004 10:30 MEST
        Affected products:      8.1, 8.2, 9.0, 9.1, 9.2
                                SUSE Linux Enterprise Server 8, 9
                                SUSE Linux Desktop 1.0
        Vulnerability Type:     remote system compromise
        Severity (1-10):        5
        SUSE default package:   yes
        Cross References:       CAN-2004-0888
                                CAN-2004-0889

    Content of this advisory:
        1) security vulnerability resolved:
             - integer overflows
             - arithmetic errors           problem description
        2) solution/workaround
        3) special instructions and notes
        4) package location and checksums
        5) pending vulnerabilities, solutions, workarounds:
            - freeradius denial of service problems
            - mpg123
            - squid
        6) standard appendix (further information)

______________________________________________________________________________

1) problem description, brief discussion

    Xpdf is a widely used fast PDF file viewer. Various other PDF viewer
    and PDF conversion tools use xpdf code to accomplish their tasks.
    Chris Evans found several integer overflows and arithmetic errors.
    Additionally Sebastian Krahmer from the SuSE Security-Team found similar
    bugs in xpdf 3.
    These bugs can be exploited by tricking an user to open a malformated PDF
    file. As a result the PDF viewer can be crashed or may be even code can be
    executed.


2) solution/workaround

    Due to the wide usage of xpdf-based code we do not recommend switching to
    another PDF viewer as a workaround.
    You have to install the updates.


3) special instructions and notes

    Please restart all running instances of xpdf, gpdf, kpdf, pdftohtml, cups
    after updating successfully.


4) package location and checksums

    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.

    Cups packages and all 9.2 packages will be available later.


    x86 Platform:

    SUSE Linux 9.1:
          f17866987c9099ed8b0395d184adfffc
          d648d6e96013cc339dd424041f8bc973
          16864a7b7652a3183f9f8cac034cf70e
          8f09aa7927d9cdcfc52ab06e520b2441
    patch rpm(s):
          2d3da1271fc9e072186fca6aa1de8c5c
          093d0aaa7f4fbe24afc722057cbe334e
          3af8141ddfbdf558afdf4f2f8f94a9f8
          0d765c907e89a91186e03d8c8de87857
    source rpm(s):
          d4892578f2d84c1bdbc36b0df9341607
          d4c06775143e5e6fec7bc544d248daee
          cfda8ff6f352e1bc4f827a3118521b25
          bb4d96dd72f0ee94315afd7b4c81e16b

    SUSE Linux 9.0:
          dc822cef09e27e169acd94cda1fb622a
          c99912bc5656546b028a8c4fe0473a75
    patch rpm(s):
          58b8a44ae02482d19c73959bfd85e85e
          8055fbed4ac1e664706701e3b7d3e1bc
    source rpm(s):
          35e37ded2db7d772d854748e606f42d0
          d42fe2976009b8ab44d6c166caf0840c

    SUSE Linux 8.2:
          e198f2fc43f1f455676a9dc1ee42af5e
    patch rpm(s):
          acb5181c10c7b365cca71ae307b11553
    source rpm(s):
          aada3bee6ac1517f50468777c49d8d91

    SUSE Linux 8.1:
          c0d7beba46d02e1090e9b6c7795a10c3
    patch rpm(s):
          ac395b4518a4c83d2af7805f35626a22
    source rpm(s):
          5ec84289ef8ca520e78cc80360d05665



    x86-64 Platform:

    SUSE Linux 9.1:
          2b0b08249164043db0e3a5b080b03f1d
          c10bbbb43b8af6bc4da4922ce2afaede
          7021ae8a2e9bc809240c8e953ef74fab
          94200c51e06e9f31bc13139ea66c1626
    patch rpm(s):
          e0d057eeb94492d62be6794dfde196c9
          ae9382a68c4d424cdee65324208f9e84
          33a0a7fd7b0758175f465f8f1fa6ce36
          c4629d75d822cf47b243cf34bd8cbacb
    source rpm(s):
          f2acee920bd51b347e072463edc8f6bc
          5b5c9c5d9aa1ddff06f56f83cf0365d9
          2e2b8e6903b724462f30c07db1e76755
          e6988ea49a337ebd49f42d15afdeb188

    SUSE Linux 9.0:
          942676168c21ac7253637dd3312e35d1
          7a5076aec7aae7e6e05bf8d0f6b5e523
    patch rpm(s):
          b14da314a640e3afd3e72f417937c461
          fd4047d3c5392d63040e576effb32df5
    source rpm(s):
          5300f04533ee5b490e1f7de0a29fd705
          dd9b695199beaea8122037705eb1a581

______________________________________________________________________________

5) pending vulnerabilities in SUSE Distributions and Workarounds:

    - freeradius
      Several bugs that can be abused to remotely crash freeradius have
      been discovered (CAN-2004-0938, CAN-2004-0960, CAN-2004-0961).
      New packages will be available soon.

    - mpg123
      A buffer overflow in mpg123 has been discovered. New packages will
      be available soon.

    - squid
      A bug in the ASN.1 parser of the SNMP module has been fixed which
      would have allowed an attacker to crash squid (CAN-2004-0918).
      Updates will be available soon.

______________________________________________________________________________

6) 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 
       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 
       to verify the signature of the package, where  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  .


  - 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-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
                .

    For general information or the frequently asked questions (faq) 
    send mail to:
         or
         respectively.

    ====================================================================    SUSE's security contact is  or .
    The  public key is listed below.
    ====================================================================