SUSE Security Summary Report SUSE-SR:2007:006

13 Apr 2007

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______________________________________________________________________________

                        SUSE Security Summary Report

        Announcement ID:        SUSE-SR:2007:006
        Date:                   Fri, 13 Apr 2007 18:00:00 +0000
        Cross-References:       CVE-2006-7139, CVE-2007-0177, CVE-2007-0242
                                CVE-2007-0451, CVE-2007-0537, CVE-2007-0653
                                CVE-2007-0654, CVE-2007-1351, CVE-2007-1564

    Content of this advisory:
        1) Solved Security Vulnerabilities:
            - Qt UTF-8 sequence decoding problem
            - kdelibs3 security update
            - mediawiki XSS problem
            - freetype2 BDF overflow
            - xmms skin handling overflow problem
            - spamassassin update to version 3.1.8
        2) Pending Vulnerabilities, Solutions, and Work-Arounds:
            - various X security problems
            - clamav 0.90.2 version upgrade
        3) Authenticity Verification and Additional Information

______________________________________________________________________________

1) Solved Security Vulnerabilities

   To avoid flooding mailing lists with SUSE Security Announcements for minor
   issues, SUSE Security releases weekly summary reports for the low profile
   vulnerability fixes. The SUSE Security Summary Reports do not list md5 sums
   or download URLs like the SUSE Security Announcements that are released for
   more severe vulnerabilities.

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

   - Qt UTF-8 sequence decoding problem

     The QT library, versions 2,3 and 4 wrongly accept overly long
     UTF-8 sequences due to a bug in the UTF-8 decoder.  This may lead
     to security problems under certain circumstances, where you could
     inject "../" into path names or XSS into web pages.

     The bug for example allows for script tag injection in konqueror
     (CVE-2007-0242).

     This problem was fixed in all SUSE Linux based products.

   - kdelibs3 security update
     The kdelibs3 packages were updated to fix 3 security problems and
     one potential problem:

     A bug in KHTML could be exploited to conduct cross site scripting
     (XSS) attacks (CVE-2007-0537).

     Another bug allowed attackers to abuse the FTP passive mode for
     port scans (CVE-2007-1564).

     Encountering empty frameset rows/cols could crash khtml
     (CVE-2006-7139).

     Also overlong sequences might get handled by the javascript
     interpreter engine, similar problem as CVE-2007-0242. It is not
     thought to be exploitable and was only fixed for completeness.

     This problem was fixed for all affected kdelibs3 packages.

   - mediawiki XSS problem
     A cross site scripting problem was fixed in the AJAX features
     of MediaWiki.

     This is tracked by the Mitre CVE ID CVE-2007-0177 and was fixed
     for openSUSE 10.2.

   - freetype2 BDF overflow
     This update of freetype2 fixes an integer overflow in the BDF font
     parsing code.  This bug can be exploited only with user assistance
     to potentially execute arbitrary code.

     This problem was assigned the Mitre CVE ID CVE-2007-1351 and it
     was fixed for all affected products.

   - xmms skin handling overflow problem

     Two integer overflows when processing BMP skin images potentially
     allows attackers to execute arbitrary code via specially crafted
     files. This requires user interaction to actually apply the crafted
     skins.

     These problems are tracked by the Mitre CVE IDs CVE-2007-0653 and
     CVE-2007-0654 and were fixed for all products containing xmms.

   - spamassassin update to version 3.1.8

     Spamassassin was brought to version 3.1.8 with following security
     related changes:

     * fix for CVE-2007-0451: Possible DoS due to incredibly
       long URIs found in the message content.

     and following bugfixes:
     * Disable perl module usage in update channels unless
       --allowplugins is specified
     * Files with names starting/ending in whitespace weren't usable
     * Remove Text::Wrap related code due to upstream issues
     * Update spamassassin and sa-learn to better deal with STDIN
     * Improvements and bug fixes related to DomainKeys
       and DKIM support
     * Several updates for Received header parsing
     * Several documentation updates and random taint-variable related
       issues

     This update also adds some missing RPM dependencies.
______________________________________________________________________________

2) Pending Vulnerabilities, Solutions, and Work-Arounds

   - Various X security problems

     Various Xorg/Xfree86 security problems have been identified.
     The updates for them are currently in QA and expected to be released
     next week.

   - clamav 0.90.2 version upgrade

     A security update release of clamav was announced today, to version
     0.90.2 fixing several security issues.

     We are preparing updates for these problems and also expect updates
     early next week.
______________________________________________________________________________

3) Authenticity Verification and Additional Information

  - Announcement authenticity verification:

    SUSE security announcements are published via mailing lists and on Web
    sites. The authenticity and integrity of a SUSE security announcement is
    guaranteed by a cryptographic signature in each announcement. All SUSE
    security announcements are published with a valid signature.

    To verify the signature of the announcement, save it as text into a file
    and run the command

      gpg --verify <file>

    replacing <file> with the name of the file containing the announcement.
    The output for a valid signature looks like:

      gpg: Signature made <DATE> using RSA key ID 3D25D3D9
      gpg: Good signature from "SuSE Security Team <security@suse.de>"

    where <DATE> is replaced by the date the document was signed.

    If the security team's key is not contained in your key ring, you can
    import it from the first installation CD. To import the key, use the
    command

      gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc

  - Package authenticity verification:

    SUSE update packages are available on many mirror FTP servers all over the
    world. While this service is considered valuable and important to the free
    and open source software community, the authenticity and integrity of a
    package needs to be verified to ensure that it has not been tampered with.

    The internal 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, replacing <file.rpm> with the
    filename of the RPM package downloaded. The package is unmodified if it
    contains a valid signature from build@suse.de with the key ID 9C800ACA.

    This key is automatically imported into the RPM database (on RPMv4-based
    distributions) and the gpg key ring of 'root' during installation. You can
    also find it on the first installation CD and included at the end of this
    announcement.

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

    opensuse-security@opensuse.org
        -   General Linux and SUSE security discussion.
            All SUSE security announcements are sent to this list.
            To subscribe, send an e-mail to
                <opensuse-security+subscribe@opensuse.org>.

    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 e-mail to
                <suse-security-announce-subscribe@suse.com>.

    =====================================================================
    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, the
    clear text signature should show proof of the authenticity of the text.

    SUSE Linux Products GmbH provides 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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Marcus Meissner

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