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SuSE: samba remote denial of service Print E-mail
User Rating:      How can I rate this item?
Posted by Benjamin D. Thomas   
SuSE Updated package.
______________________________________________________________________________

                        SUSE Security Announcement

        Package:                samba
        Announcement ID:        SUSE-SA:2007:016
        Date:                   Thu, 15 Feb 2007 15:00:00 +0000
        Affected Products:      SUSE LINUX 9.3
                                SUSE LINUX 10.0
                                SUSE LINUX 10.1
                                openSUSE 10.2
                                SUSE SLES 9
                                Novell Linux Desktop 9
                                Open Enterprise Server
                                Novell Linux POS 9
                                SUSE SLED 10
                                SUSE SLES 10
        Vulnerability Type:     remote denial of service
        Severity (1-10):        5
        SUSE Default Package:   yes
        Cross-References:       CVE-2007-0452 CVE-2007-0453 CVE-2007-0454

    Content of This Advisory:
        1) Security Vulnerability Resolved:
             samba remote denial of service
           Problem Description
        2) Solution or Work-Around
        3) Special Instructions and Notes
        4) Package Location and Checksums
        5) Pending Vulnerabilities, Solutions, and Work-Arounds:
            See SUSE Security Summary Report.
        6) Authenticity Verification and Additional Information

______________________________________________________________________________

1) Problem Description and Brief Discussion

   The Samba daemon was affected by a security problem, where a
   logic error in the deferred open code can lead to an infinite loop
   (CVE-2007-0452).

   This problem could be used by remote authenticated attackers that
   have access to the samba daemon.

   Two other problems fixed in the upstream samba security release
   that do not affect the SUSE Samba version:

   - CVE-2007-0454: A format string problem in AFS ACL handling.
     None of our shipping Samba versions have this option compiled in.

   - CVE-2007-0453: A buffer overflow in nss_winbind on Solaris.
     Linux is generally not affected by this problem.

2) Solution or Work-Around

   There is no known workaround, please install the update packages.

3) Special Instructions and Notes

   None.

4) Package Location and Checksums

   The preferred method for installing security updates is to use the YaST
   Online Update (YOU) tool. YOU detects which updates are required and
   automatically performs the necessary steps to verify and install them.
   Alternatively, download the update packages for your distribution manually
   and verify their integrity by the methods listed in Section 6 of this
   announcement. Then install the packages using the command

     rpm -Fhv 

   to apply the update, replacing  with the filename of the
   downloaded RPM package.


   x86 Platform:

   openSUSE 10.2:
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/samba-3.0.23d-19.2.i586.rpm
          6b4cb2859d1321648fd46c30a6cfd343
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/samba-client-3.0.23d-19.2.i586.rpm
          b168ff8f07a792bf6fb66a91c893ae33
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/samba-winbind-3.0.23d-19.2.i586.rpm
          23e180e09af077fd64b35d8154d414c6

   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/samba-3.0.22-13.27.i586.rpm
          898c1eb0d0d4f1c806ce7fb8907753d7
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/samba-client-3.0.22-13.27.i586.rpm
          d4f4efa7488aa12edd8f9ac2074fbbc3
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/samba-winbind-3.0.22-13.27.i586.rpm
          f2d11fdea4fa460cfb5bda4e20fc5e86

   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/samba-3.0.20b-3.8.i586.rpm
          ce7bcec67ee32a5415d4cb5907ec0372

   SUSE LINUX 9.3:
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/samba-3.0.13-1.6.i586.rpm
          7cc438d1cc0e8d4f479844bfccc8f698

   Power PC Platform:

   openSUSE 10.2:
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/samba-3.0.23d-19.2.ppc.rpm
          d3b20aff8d493b48741b160c223bd268
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/samba-client-3.0.23d-19.2.ppc.rpm
          790670189510dce128dca2f3f32f2b9c
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/samba-winbind-3.0.23d-19.2.ppc.rpm
          43815e4efd08eae9e26242be281ba2fe

   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/samba-3.0.22-13.27.ppc.rpm
          a2d2ce421081a74258c5328a5a432629
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/samba-client-3.0.22-13.27.ppc.rpm
          f86d3c623aadc34f1f64f173108f9c4b
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/samba-winbind-3.0.22-13.27.ppc.rpm
          b95e5643763b4f172adec030fa9033be

   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/samba-3.0.20b-3.8.ppc.rpm
          8badc1520efe79ac17b053be83648e46

   x86-64 Platform:

   openSUSE 10.2:
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/samba-3.0.23d-19.2.x86_64.rpm
          a23ee65e112c499b91af6c00ab068efa
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/samba-32bit-3.0.23d-19.2.x86_64.rpm
          09785d54c57f6da705acfa0f911b0b8d
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/samba-client-3.0.23d-19.2.x86_64.rpm
          c4b7be8c144842fd6947bfa7bf56891a
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/samba-client-32bit-3.0.23d-19.2.x86_64.rpm
          5a474e36e2f20b086138fb1d7a225942
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/samba-winbind-3.0.23d-19.2.x86_64.rpm
          c3ebad542ec53b71d3641310f796b430
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/samba-winbind-32bit-3.0.23d-19.2.x86_64.rpm
          1d0480ab089c3be84de54bc6bad71910

   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/samba-3.0.22-13.27.x86_64.rpm
          be6125ae205f2274150a29a4c251e8c0
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/samba-32bit-3.0.22-13.27.x86_64.rpm
          6bd817cbdf52fd2e4ff8257442ba1d60
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/samba-client-3.0.22-13.27.x86_64.rpm
          5cd72ad1de6b29173a9e3d23a1012b2c
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/samba-client-32bit-3.0.22-13.27.x86_64.rpm
          a6509bd2aa7b9c7421e4d1777ce2bba3
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/samba-winbind-3.0.22-13.27.x86_64.rpm
          0d3cb4f0c3bcef1a5569dd5d72b3c73b
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/samba-winbind-32bit-3.0.22-13.27.x86_64.rpm
          e9dbf740b218735e385a348524d31108

   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/samba-3.0.20b-3.8.x86_64.rpm
          f0ad5468ce42ff2631e9a6b3231010c1

   SUSE LINUX 9.3:
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/samba-3.0.13-1.6.x86_64.rpm
          fbd0c2a208fd91da991e53b54fb1a57d

   Sources:

   openSUSE 10.2:
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/samba-3.0.23d-19.2.src.rpm
          54d62f5dad95981f0ae894619d0f06ea

   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/src/samba-3.0.22-13.27.src.rpm
          8b2e1c4b662fc43fa03fe1ba60342c00

   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/samba-3.0.20b-3.8.src.rpm
          9217074c11c43c30860be28b33f034dd

   SUSE LINUX 9.3:
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/samba-3.0.13-1.6.src.rpm
          117006e9e50e888e4848aa320e88b18d

   Our maintenance customers are notified individually. The packages are
   offered for installation from the maintenance web:

   SUSE SLES 10
     http://support.novell.com/techcenter/psdb/1324cf66bf45968bebbd721ece5f92c7.html

   SUSE SLED 10
     http://support.novell.com/techcenter/psdb/1324cf66bf45968bebbd721ece5f92c7.html

   Open Enterprise Server
     http://support.novell.com/techcenter/psdb/75665d46b2b2dc409e252b880a1ad2f4.html

   Novell Linux POS 9
     http://support.novell.com/techcenter/psdb/75665d46b2b2dc409e252b880a1ad2f4.html

   Novell Linux Desktop 9
     http://support.novell.com/techcenter/psdb/75665d46b2b2dc409e252b880a1ad2f4.html

   SUSE SLES 9
     http://support.novell.com/techcenter/psdb/75665d46b2b2dc409e252b880a1ad2f4.html

______________________________________________________________________________

5) Pending Vulnerabilities, Solutions, and Work-Arounds:

   See SUSE Security Summary Report.
______________________________________________________________________________

6) 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 

    replacing  with the name of the file where you saved the
    announcement. The output for a valid signature looks like:

      gpg: Signature made  using RSA key ID 3D25D3D9
      gpg: Good signature from "SuSE Security Team "

    where  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 the integrity of
    a package needs to be verified to ensure that it has not been tampered
    with.

    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) Using the internal gpg signatures of the rpm package
    2) MD5 checksums as provided in this announcement

    1) The internal rpm package signatures provide an easy way to verify the
       authenticity of an RPM package. Use the command

        rpm -v --checksig 

       to verify the signature of the package, replacing  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 at
       the end of this announcement.

    2) If you need an alternative means of verification, use the md5sum
       command to verify the authenticity of the packages. Execute the command

         md5sum 

       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
       SUSE security announcement. Because the announcement containing the
       checksums is cryptographically signed (by security@suse.de), the
       checksums show proof of the authenticity of the package if the
       signature of the announcement is valid. Note that the md5 sums
       published in the SUSE Security Announcements are valid for the
       respective packages only. Newer versions of these packages cannot be
       verified.

  - 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
                .

    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's security contact is  or .
    The  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.
 
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