SUSE Security Summary Report SUSE-SR:2005:021

30 Sep 2005

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______________________________________________________________________________

                        SUSE Security Summary Report

        Announcement ID:        SUSE-SR:2005:021
        Date:                   Fri, 30 Sep 2005 14:00:00 +0000
        Cross-References:       CAN-2005-0941, CAN-2005-2558, CAN-2005-2794
                                CAN-2005-2796, CAN-2005-2876

    Content of this advisory:
        1) Solved Security Vulnerabilities:
            - storeBackup insecure /tmp usage and permissions
            - squid remote denial of service problems
            - mysql stack overflow in function handling
            - util-linux umount privilege escalation
            - OpenOffice_org version upgrade
            - mediawiki cross site scripting problems
        2) Pending Vulnerabilities, Solutions, and Work-Arounds:
            None
        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.

   - storeBackup insecure /tmp usage and permissions

     This update upgrades storeBackup to version 1.19 and fixes following
     security issues:
     - storeBackup used insecure /tmp filenames.
     - storeBackup used insecure (world readable) file permissions for
       the backup root.

     Only SUSE Linux retail products contain storeBackup and are affected.

   - squid remote denial of service problems

     The web proxy squid was updated to fix two remotely exploitable
     denial of service vulnerabilities. One can be triggered by aborting a
     request and the other one occurs in sslConnectTimeout while handling
     malformed requests.

     This is tracked by the Mitre CVE IDs CAN-2005-2794 and CAN-2005-2796.

     All SUSE Linux based products containing squid are affected.

   - mysql stack overflow in function handling

     This update fixes a stack-based buffer overflow in MySQL's init_syms
     function that can be exploited by authenticated users with the
     privilege to create user-defined functions.

     This is tracked by the Mitre CVE ID CAN-2005-2558.

     All SUSE Linux based products including mysql are affected.

   - util-linux umount privilege escalation

     The remount option of umount allowed local users to clear certain
     security relevant flags such as the nosuid flag.

     This is tracked by the Mitre CVE ID CAN-2005-2876. All SUSE Linux
     based products are affected by this problem.

   - OpenOffice_org version upgrade

     OpenOffice.org on SUSE Linux 9.3 was upgraded to 2.0 Beta Milestone m125.
     This includes a large number of bug fixes in all areas.

     This update also fixes a buffer overflow in the MS Word document
     reader. By creating a specially crafted Word document a remote
     attacker could exploit this bug to execute arbitrary code under
     the user id of the user viewing the document (CAN-2005-0941).

     Note that this version will save files in the new, final XML format
     that cannot be read by the original SUSE Linux 9.3 version.
     Files saved with the original 9.3 version can be read without problems.

   - Mediawiki cross site scripting problems

     More cross site scripting problems were found in MediaWiki. The
     problems fixed in the 1.4.9 release have been back ported and are
     included in this security update.
     Only SUSE Linux 9.3 contains MediaWiki.

______________________________________________________________________________

2) Pending Vulnerabilities, Solutions, and Work-Arounds

   None
______________________________________________________________________________

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:

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

    =====================================================================
    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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