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______________________________________________________________________________

                        SUSE Security Announcement

        Package:                openssl
        Announcement-ID:        SuSE-SA:2004:007
        Date:                   Wednesday, Mar 17th 2004 13:30 MEST
        Affected products:      8.0, 8.1, 8.2, 9.0
                                SuSE Linux Database Server,
                                SuSE eMail Server III, 3.1
                                SuSE Linux Enterprise Server 7, 8
                                SuSE Linux Firewall on CD/Admin host
                                SuSE Linux Connectivity Server
                                SuSE Linux Office Server
        Vulnerability Type:     remote denial-of-service
        Severity (1-10):        4
        SUSE default package:   yes
        Cross References:       CAN-2004-0079
                                CAN-2004-0112

    Content of this advisory:
        1) security vulnerability resolved:
             - null pointer assignment due to handshake
             - crash with Kerberos cipher-suite support
           problem description, discussion, solution and upgrade information
        2) pending vulnerabilities, solutions, workarounds:
             - xf86_glx/xmodules/xloader
             - gnome-session
             - pwlib
             - libxml2
             - mod_python
             - mozilla
             - kernel
             - mailman
             - metamail
             - sysstat
        3) standard appendix (further information)

______________________________________________________________________________

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

    OpenSSL is an implementation of the Secure Socket Layer (SSL v2/3)
    and Transport Layer Security (TLS v1) protocol.
    The NISCC informed us about to failure conditions in openssl
    that can be triggered to crash applications that use the openssl
    library.
    The first bug occurs during SSL/TLS handshake in the function
    do_change_cipher_spec() due to a NULL pointer assignment.
    The second bug affects openssl version 0.9.7* only with Kerberos
    cipher-suite enabled and can be triggered during SSL/TLS handshake too.

    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.

    There is not other solution known to this problem then updating to the
    current version from our FTP servers.

    To make this update effective, restart all servers using openssl please


    Intel i386 Platform:

    SuSE-9.0:
          31ec7dd8d5e119ebc0c63b287e4ad3c7
          952ad40732b95ca7fdd8ba00a94ce99b
    patch rpm(s):
          71d9522ca81e5cec829266f5fd9efb6d
          40d2d30ff2f2629d02e6e54472b6aca0
    source rpm(s):
          3bb291108685b06ac25533014ede039e

    SuSE-8.2:
          21d83138d00c84b0febc2428f1e5ceac
          421bf9717ff3c7facc8a6ee51438e82c
    patch rpm(s):
          0457b801931f1f6857e3358c4b5a9151
          4d8561d55cde4d31c840ebd7d10901e1
    source rpm(s):
          4a55e2eae1fd8ebcc086fa612d9af95b

    SuSE-8.1:
          53c938f88ed6a5d2ad12120c65ea880f
          bd6ff0ccaf12c1ce9107accf5f4372b6
    patch rpm(s):
          7782f761018a0b4fb95c955f7c782b6d
          51df3d52a98175cbe6338cb963140a59
    source rpm(s):
          da2f5a9f62126ad0e1659a6f4f78878c

    SuSE-8.0:
          f40a9640a6acc1ba9bbd3c2669ecba9d
          d19730d5050a0f0fd5cafb348c0c0896
    patch rpm(s):
          e81f85173f6108f1e1ce312540fcff48
          9fbb35bdf838262ccb56b4c3924c3a08
    source rpm(s):
          0b09e243d99922087ace4052f330f493


______________________________________________________________________________

2)  Pending vulnerabilities in SUSE Distributions and Workarounds:

    - xf86_glx/xmodules/xloader
    The GLX and DRI code of the Xserver did not verify the "screen"
    parameter in several functions. This failure leads to a denial-of-    service condition and probably to arbitrary code execution as root.
    New packages are available on our FTP servers.

    - gnome-session
    This updates solves a problem with the initialization of the
    LD_LIBRARY_PATH while starting GNOME by using /usr/X11R6/bin/gnome.
    This bug can lead to local privilege escalation.
    New packages are available on our FTP servers.

    - pwlib
    This update addresses several security vulnerabilities that
    may be exploited remotely via applications that link with
    pwlib, like GnomeMeeting or alike.
    New packages are available on our FTP servers.

    - libxml2
    A buffer overflow in the URI parsing code is fixed. This bug can
    lead to remote access to a system using libxml2.
    New packages are available on our FTP servers.

    - mod_python
    A remote denial-of-service attack can be triggered against the Apache
    web server by sending a specific query string that is processed by
    mod_python.
    New packages are available on our FTP servers.

    - mozilla
    A buffer overflow in the S/MIME code of mozilla has been fixed
    which could allow remote attackers to execute arbitrary commands
    as the user running mozilla.
    Additionally a flaw in cookie handling (CAN-2003-0592) and a
    cross-site-scripting bug was fixed.
    In some cases (as with the mozilla package) the complexity of the
    issue does not allow to add patches any more. By consequence,
    security related issues in mozilla cannot be addressed.
    As a service to our user community, we provide packages of newer
    mozilla versions at .
    These packages have been verified to run fine; they are not located
    in the update directory of the distribution in question because
    we cannot make any claims about the compatibility with the other
    packages in the product

    - kernel
    A new kernel release was made available. This update fixes some minor
    local denial-of-service attacks. Additionally, the 8.2 versions also
    includes a missing patch from SuSE-SA:2004:005.

    - mailman
    A remote denial-of-service attack can be triggered in mailman 2.0.x
    (CAN-2003-0991).
    New packages will be available soon.

    - metamail
    This update fixes two buffer overflows and two format string bugs
    that can be exploited remotely in conjunction with other tools
    to gain access to a system with the privileges of the user running
    New packages will be available soon.

    - sysstat
    Two cases of insecure temporary file handling were found.
    The packages are currently being tested and will be available
    soon.
______________________________________________________________________________

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 
       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.
    ====================================================================