______________________________________________________________________________

                        SUSE Security Summary Report

        Announcement-ID:        SUSE-SR:2005:010
        Date:                   Fri, 08 Apr 2005 14:00:00 +0000
        Cross References:       CAN-2005-0605
                                CAN-2005-0706
                                CAN-2005-0891

    Content of this advisory:
        1) solved security vulnerabilities:
            - netapplet local privilege escalation
            - grip buffer overflow in cddb handling
            - additional libXPM overflows
            - tetex tmp symlink attack
             - crash by double free in gdk-pixbuf 

        2) pending vulnerabilities, solutions, workarounds:
            - wget directory traversal and dot file overwrite problem
            - IDN (Internationalized Domain Name) cloaking / homograph attacks
            - PostgreSQL problems
            - php denial of service problems
            - new Mozilla security problems
            - buffer overflow in sylpheed / sylpheed-claws

        3) standard appendix (further information)

______________________________________________________________________________

1) solved security vulnerabilities

   To avoid spamming lists with advisories for every small incident,
   we will release weekly summary advisories for issues where we have
   released updates without a full advisory. Since these are minor
   issues, md5sums and ftp URLs are not included.

   Fixed packages for the following incidents are already available on
   our FTP server and via the YaST Online Update.

   - netapplet local privilege escalation

     The SUSE Security Team reviewed critical parts of netapplet and found
     severe bugs which could allow local attackers to gain root privileges.
     User input has been passed to network scripts without verification.
     This has been fixed.

     Novell Linux Desktop 9 was affected by this problem.

   - grip buffer overflow in cddb handling

     Insufficient checks when processing CDDB queries could lead to
     buffer- and integer overflows. Those bugs have been fixed. This
     is tracked by the Mitre CVE ID CAN-2005-0706.

     All SUSE Linux products including grip were affected.

   - additional libXPM overflows

     This update fixes a buffer overflow in some for loops that can
     be triggered while processing XPM image file data. This bug could
     potentially be exploitable from remote to execute arbitrary code.

     This is tracked by the Mitre CVE ID CAN-2005-0605.

     All SUSE Linux based products were affected by this problem.

   - tetex tmp symlink attack

     By placing a symlink in /var/cache/fonts a user could find out which
     files exist in directories not accessible for him. Indexing
     /var/cache/fonts is now done as user nobody instead of root to
     prevent this.

     All SUSE Linux products were affected.

   - crash by double free in gdk-pixbuf 

     A bug in the BMP handling of gdk-pixbuf causes a pointer to be
     freed twice, resulting in a crash of the application.

     We will fix this in upcoming products, a security update is not
     planned.

     This is tracked by the Mitre CVE ID CAN-2005-0891.
______________________________________________________________________________

2) Pending vulnerabilities in SUSE Distributions and Workarounds:

   - wget directory traversal and dot file overwrite problem

     We are still working on updated packages for the wget issues as
     reported on Bugtraq:
             http://www.securityfocus.com/archive/1/383998

     Packages are now in QA.


   - IDN (Internationalized Domain Name) cloaking / homograph attacks

     Problems with the IDN / punycode handling that allows non-ASCII
     domain names were reported for every browser.

     - The KDE approach is currently filtering on the top level domain.
     - The Mozilla approach is currently to display punycode.

     We have released Mozilla Firefox updates for this problem, the others
     are still pending.


   - PostgreSQL problems

     Additional PostgreSQL problems were reported:
     - A local user could bypass the EXECUTE permission check for
       functions by using the CREATE AGGREGATE command. CAN-2005-0244

     - Other earlier listed problems are already fixed.

     We are still working on updates for this problem.


   - php denial of service problems

     We are working on updates for the new php denial of service
     problems as found in the php5 5.0.4 and php4 4.3.11 release.


   - New Mozilla security problems

     Several new Mozilla browser security problems have been reported.

     We are currently addressing these issues.


   - buffer overflow in sylpheed / sylpheed-claws

     Buffer overflows in the handling of the MIME conversion of
     header lines in the GTK based mail reader sylpheed / sylpheed-claws
     were found.

     We are currently working on updates.
______________________________________________________________________________

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 recommend against subscribing to security lists that cause the
       e-mail 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
       file name of the rpm package that you have downloaded. Of course,
       package authenticity verification can only target an uninstalled 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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