Date: Fri, 25 Jan 2008 14:50:26 +0100
From: Marcus Meissner <meissner@suse.de>
To: opensuse-security-announce@opensuse.org
Subject: [security-announce] SUSE Security Summary Report SUSE-SR:2008:002


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______________________________________________________________________________

                        SUSE Security Summary Report

        Announcement ID:        SUSE-SR:2008:002
        Date:                   Fri, 25 Jan 2008 16:00:00 +0000
        Cross-References:       CVE-2006-7217, CVE-2007-5339, CVE-2007-5340
                                CVE-2007-5360, CVE-2007-5848, CVE-2007-5849
                                CVE-2007-5894, CVE-2007-5902, CVE-2007-5965
                                CVE-2007-5971, CVE-2007-5972, CVE-2007-6284
                                CVE-2007-6351, CVE-2007-6352, CVE-2007-6599
                                CVE-2008-0225, MFSA 2007-29

    Content of this advisory:
        1) Solved Security Vulnerabilities:
            - tog-pegasus buffer overflow in authentication
            - xine rtsp buffer overflows
            - libxml2 denial of service in UTF8 handling
            - libqt4 incorrect SSL certificate handling
            - XFree86/X.Org updates reissued
            - krb5 various small issues
            - libexif overflows and denial of service
            - openafs server denial of service
            - Apache derby post-authentication denial of service
            - MozillaThunderbird 1.5.0.14 release
            - Xen denial of service problems
        2) Pending Vulnerabilities, Solutions, and Work-Arounds:
            - kernel updates in preparation
            - wireshark 0.99.7 security release
            - various MySQL security issues
            - various Apache security problems
        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.

   - tog-pegasus buffer overflow in authentication

     A stack based buffer overflow in local PAM authentication
     for tog-pegasus could be used by attackers to execute
     code. (CVE-2007-5360)

     This package only exists on and was updated for the SUSE Linux
     Enterprise 10 SDK.


   - xine rtsp buffer overflows

     Specially crafted rtsp-Streams could cause a buffer overflow in
     xine. Attackers could potentially exploit that to execute arbitrary
     code (CVE-2008-0225).

     Xine-lib has been updated on all affected distributions.


   - libxml2 denial of service in UTF8 handling

     libxml2 contained a DoS condition in xmlCurrentChar()'s UTF-8
     processing. CVE-2007-6284 has been assigned to this problem.

     Updates were released for all SUSE Linux based products.


   - libqt4 incorrect SSL certificate handling
     A bug in the QSslSocket class could under certain circumstances
     lead to incorrect SSL certificates beeing accepted as valid
     (CVE-2007-5965).

     This problem only affected openSUSE 10.3.


   - XFree86/X.Org updates reissued

     We reissued the previously released X.org and XFree86 packages to
     fix a regression in the MIT SHM handling, which caused some programs
     (vlc, eclipse, other SWT programs) to abort.


   - krb5 various small issues

     This update fixes multiple vulnerabilities in krb5. It's unlikely
     that those vulnerabilities can actually be exploited.  (CVE-2007-5894,
     CVE-2007-5902, CVE-2007-5971, CVE-2007-5972)

     Updates have been released for SUSE Linux Enterprise 10, SUSE Linux
     10.1 and openSUSE 10.2, and 10.3.


   - libexif overflows and denial of service

     Two bugs in libexif were identified by a Google Security Audit done
     by Meder Kydyraliev.

     CVE-2007-6351: Loading EXIF data could be used to cause a infinite
                    recursion and crash
     CVE-2007-6352: Integer overflows in the thumbnail handler could be
                    used to overflow buffers and potentially execute
                    code or crash a program using libexif.

     Updates have been released for libexif and libexif5 packages on
     all distributions.


   - openafs server denial of service

     This update fixes a remote denial of service (crash) against the
     openafs server. (CVE-2007-6599)

     This problem affected only SUSE Linux 10.1.


   - Apache derby post-authentication denial of service

     Apache Derby did not determine schema privilege requirements during
     the DropSchemaNode bind phase, which allows remote authenticated
     users to execute arbitrary drop schema statements in SQL
     authorization mode. (CVE-2006-7217)

     This update also brings a new requirement of a Java 1.5 JRE.
     Unfortunately this makes an update for Itanium impossible, so
     Itanium packages are left out for now.


   - MozillaThunderbird 1.5.0.14 release

     Mozilla Thunderbird was brought to security update version 1.5.0.14
     on SUSE Linux 10.1 and openSUSE 10.2.

     Following security problems were fixed:
     - MFSA 2007-29: Crashes with evidence of memory corruption As part
       of the Firefox 2.0.0.8 update releases Mozilla developers fixed
       many bugs to improve the stability of the product. Some of
       these crashes showed evidence of memory corruption under certain
       circumstances and we presume that with enough effort at least
       some of these could be exploited to run arbitrary code.

       - CVE-2007-5339 Browser crashes
       - CVE-2007-5340 JavaScript engine crashes


   - Xen denial of service problems

     Various Xen issues have been fixed, two of them security related:

      - CVE-2007-5906: Xen allowed virtual guest system users to cause
        a denial of service (hypervisor crash) by using a debug register
        (DR7) to set certain breakpoints.

      - CVE-2007-5907: Xen 3.1.1 does not prevent modification of the
        CR4 TSC from applications, which allows pv guests to cause a denial
        of service (crash).

      Updates had already been released for SUSE Linux 10.1, openSUSE
      10.3 and SUSE Linux Enterprise Server 10. openSUSE 10.2 updates
      were now released too.
______________________________________________________________________________

2) Pending Vulnerabilities, Solutions, and Work-Arounds

   - kernel updates in preparation

     We are currently preparing kernel security updates for SUSE Linux
     Enterprise 10, SUSE Linux 10.1 and openSUSE 10.2 and 10.3 to fix
     various security issues and bugs. They will probably be released
     mid of next week.


   - wireshark 0.99.7 security release

     Multiple bugs were fixed in wireshark 0.99.7, updated packages for
     these problems are currently in QA.


   - various MySQL security issues

     We are currently testing a MySQL update to fix various security
     issues discovered.


   - Various Apache security problems

     Various Apache security problems have been found in the last weeks
     and we are currently preparing updates for them.
______________________________________________________________________________

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>.

    opensuse-security-announce@opensuse.org
        -   SUSE's announce-only mailing list.
            Only SUSE's security announcements are sent to this list.
            To subscribe, send an e-mail to
                <opensuse-security-announce+subscribe@opensuse.org>.

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