Date: Fri, 04 Feb 2005 15:21:29 +0100
From: Marcus Meissner <meissner@suse.de>
To: suse-security-announce@suse.com
Subject: [suse-security-announce] SUSE Security Summary Report SUSE-SR:2005:003


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______________________________________________________________________________

                        SUSE Security Summary Report

        Announcement-ID:        SUSE-SR:2005:003
        Date:                   Wednesday, Feb 4th 2005 15:00 MEST
        Cross References:       CAN-2005-0064 CAN-2004-1125 CAN-2004-1268
                                CAN-2004-1267 CAN-2004-1029 CAN-2004-1145
                                CAN-2004-1158 CAN-2004-1147 CAN-2004-1148
                                PMASA-2004-4  CAN-2004-1055 PMASA-2004-3
                                CAN-2005-0133 CAN-2005-0013 CAN-2005-0014
                                CAN-2005-0005 CAN-2004-1182 CAN-2005-0094
                                CAN-2005-0095 CAN-2005-0096 CAN-2005-0097 
                                CAN-2005-0175 CAN-2005-0174 CAN-2005-0173
                                CAN-2004-1004 CAN-2004-1005 CAN-2004-1009
                                CAN-2004-1090 CAN-2004-1091 CAN-2004-1092
                                CAN-2004-1093 CAN-2004-1174 CAN-2004-1175
                                CAN-2004-1176 CAN-2004-1139 CAN-2004-1140
                                CAN-2004-1141 CAN-2004-1142 CAN-2005-0006
                                CAN-2005-0007 CAN-2005-0008 CAN-2005-0009
                                CAN-2005-0010 CAN-2005-0084 CAN-2005-0102

    Content of this advisory:
        1) solved security vulnerabilities:
	    - mailman missing dependency
            - several security problems in CUPS
            - Java Plugin security problems
            - Several KDE vulnerabilities
            - various phpMyAdmin problems
            - clamav denial of service attack
            - libXPM bug fixes
            - various ncpfs problems
            - ImageMagick buffer overflows
            - hylafax authentication problems
            - postfix 64 bit and IPv6 related problems
            - samba bug fix release
            - various Squid denial of service problems
            - multiple mc problems
            - htdig cross site scripting problem
            - xntp problems with IPv6
            - various ethereal protocol decoder problems
            - buffer overflow in evolution helper app

        2) pending vulnerabilities, solutions, workarounds:
            - None.

        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.


   - mailman missing dependency

     The mailman update from last week introduced new code into
     the mailman python code. This code requires python classes from the
     python-xml package. Please make sure you have the python-xml
     RPM installed if you are using mailman.


   - several security problems in CUPS

     Several problems in the print system CUPS have been fixed:
     - xpdf buffer overflows in included pdftops filter program.
       Mitre CVE IDs: CAN-2005-0064 and CAN-2004-1125.

     - buffer overflow in hpgltops filter program found by djb students.
       Mitre CVE ID: CAN-2004-1267

     - lppasswd denial of service attack found by djb students.
       Mitre CVE ID: CAN-2004-1268

     All SUSE Linux based products are affected.


   - multiple Mozilla vulnerabilities

     Lots of Mozilla problems have been fixed in the Mozilla and Mozilla
     Firefox packages. All currently known security bug fixes from the
     Mozilla release branches were merged into our Mozilla RPMs.

     All SUSE Linux based products are affected.


   - Java Plugin security problems

       A privilege escalation problem was found in the Sun Java Plugin
       which could have a remote attacker reading and writing files of
       a local user browsing websites. This is tracked by the Mitre CVE
       ID CAN-2004-1029.

       This bug affects all SUSE versions on the Intel x86 and AMD64 /
       Intel Extended Memory Architecture (EM64T) platforms.


   - Several KDE vulnerabilities

     Several vulnerabilities were identified and fixed within KDE:
     - Java Plugin security problems similar to the Sun Java Plugin
       security problems were identified and fixed.
       Mitre CVE ID: CAN-2004-1145

     - A FTP command injection problem was identified and fixed.

     - Window injection vulnerabilities were identified and fixed.
       Mitre CVE ID: CAN-2004-1158

     - SMB link URLs could contain the passwords of the shares.

     All SUSE Linux based products are affected.


   - various phpMyAdmin problems

     Several problems were found within phpMyAdmin:
	- with PHP safe mode off and external transformations enabled an
          attacker could execute arbitrary commands (CAN-2004-1147,
          PMASA-2004-4). This only affects SUSE Linux version starting
          with 9.0.
        - With PHP safe mode off an attacker could read arbitrary files
          (CAN-2004-1148, PMASA-2004-4). SUSE Linux versions starting with
          8.2 are affected.
        - multiple cross site scripting bugs (CAN-2004-1055, PMASA-2004-3)
          All SUSE Linux versions are affected.

   - clamav denial of service attack

     Our system administrators spotted a rogue ZIP file that caused
     clamav to crash by a division by zero. This problem was fixed and
     is tracked by the Mitre CVE CAN-2005-0133. A further upstream
     clamav update is currently in progress.


   - libXPM bug fixes

     Earlier versions of the bug fix for libXPM buffer overflows had
     problems when saving XPM files to absolute pathnames for instance
     via GIMP. This problem was fixed and affected all SUSE Linux based
     products.


   - various ncpfs problems

     Erik Sjølund of Debian discovered various ncpfs security problems
     which could lead to a local attacker gaining root privileges. These
     are tracked by the Mitre CVE IDs CAN-2005-0013 and CAN-2005-0014.

     All SUSE Linux based products were affected.


   - ImageMagick buffer overflows

     ImageMagick contained buffer overflows in the PSD (Photoshop
     Document) decoding routines. This is tracked by the Mitre CVE ID
     CAN-2005-0005.

     All SUSE Linux based products are affected.


   - hylafax authentication problems

     Lee Howard found a bug in the authentication code of hfaxd
     that allowed attackers to gain unauthorized access to the fax
     system by guessing the content of the hosts.hfaxd file.

     This is tracked by the Mitre CVE ID CAN-2004-1182.

     All SUSE Linux based products are affected.


   - postfix 64 bit and IPv6 related problems

     - When postfix runs chrooted without /proc mounted and has
       the permit_mx_backup option set, it would relay mails to any
       MX hosts with AAAA (IPv6) DNS records.
       This was found and reported by Peer Heinlein.

     - When setting "debug_peer_list" to a non-empty value and using
       lmtp delivery via unix domain sockets, the postfix lmtp process
       will segfault. This bug is only valid on 64bit platforms:

     - Postfix components can segfault because of non-portable reuse of
       variadic argument lists.

      All SUSE Linux based products are affected.


    - samba bug fix release

      The previous Samba security update contained a bug which could
      lead to the smbd crashing on startup.

      All SUSE Linux based products are affected.


    - various Squid denial of service problems

      Various denial of service and potential buffer overflow problems
      were found in the web proxy Squid:

      - Mitre CVE ID CAN-2005-0094

        "infamous41md" discovered a buffer overflow in the parser for
        Gopher responses which will lead to memory corruption and usually
        crash Squid.

      - Mitre CVE ID CAN-2005-0095

        "infamous41md" discovered an integer overflow in the receiver of
        WCCP (Web Cache Communication Protocol) messages.  An attacker
        could send a specially crafted UDP datagram that will cause Squid
        to crash.

      - Mitre CVE ID CAN-2005-0096

        Memory leak in the NTLM fakeauth_auth helper for Squid 2.5.STABLE7
        and earlier allows remote attackers to cause a denial of service
        by memory consumption.

      - Mitre CVE ID CAN-2005-0097 
 
        The NTLM component in Squid 2.5.STABLE7 and earlier allows remote 
        attackers to cause a denial of service (crash) via a malformed NTLM 
        type 3 message. 

      - Mitre CVE ID CAN-2005-0175 and CAN-2005-0174.
   
        Minor problems in the HTTP header parsing code were fixed.

      - CAN-2005-0173

        LDAP is very forgiving about spaces in search filters and this could
        be abused to log in using several variants of the login name, possibly
        bypassing explicit access controls or confusing accounting.

    - multiple mc problems

      Several bug fixes were applied to the source by upstream developers of 
      the console file browser mc that are security relevant.

        - CAN-2004-1004 Multiple format string vulnerabilities
        - CAN-2004-1005 Multiple buffer overflows
        - CAN-2004-1009 One infinite loop vulnerability
        - CAN-2004-1090 Denial of service via  corrupted section header
        - CAN-2004-1091 Denial of service via null dereference
        - CAN-2004-1092 Freeing unallocated memory
        - CAN-2004-1093 Denial of service via use of already freed memory
        - CAN-2004-1174 Denial of service via manipulating non-existing file
          handles
        - CAN-2004-1175 Unintended program execution via insecure filename
          quoting.
        - CAN-2004-1176 Denial of service via a buffer underflow

       All SUSE Linux based products are affected.

     - xntp problems with IPv6

       The xntpd crashes when accessing NTP hosts with IPv6 addresses.

       This affects all SUSE linux based platforms.

     - various ethereal protocol decoder problems

       Various network protocol decoder problems were fixed in ethereal
       which could lead to crashes or remote attackers executing code.

       List of Mitre CVE Ids: CAN-2004-1139,CAN-2004-1140,CAN-2004-1141,
       CAN-2004-1142, CAN-2005-0006, CAN-2005-0007, CAN-2005-0008,
       CAN-2005-0009, CAN-2005-0010, CAN-2005-0084.

       All SUSE linux based products are affected.


     - buffer overflow in evolution helper app

       A buffer overflow in a evolution helper app could lead to a remote
       attacker executing code as the mail retrieving user. This is tracked
       by the Mitre CVE ID CAN-2005-0102.

       All SUSE Linux based products are affected.


     - Path traversal problem in SLOX

       A path traversal problem in SLOX was reported to us by Gerrit Wyen
       and Thorsten Reinsch. Fixed packages have been released.

       This affects the SUSE Linux Open Exchange server product.

______________________________________________________________________________

2)  Pending vulnerabilities in SUSE Distributions and Workarounds:

     - No critical vulnerabilities.

______________________________________________________________________________

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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