SUSE Security Announcement: gpg (SUSE-SA:2006:075)

13 Dec 2006

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Hash: SHA1

______________________________________________________________________________

                        SUSE Security Announcement

        Package:                gpg,gpg2
        Announcement ID:        SUSE-SA:2006:075
        Date:                   Wed, 13 Dec 2006 12:00:00 +0000
        Affected Products:      Novell Linux Desktop 9
                                Novell Linux POS 9
                                Open Enterprise Server
                                openSUSE 10.2
                                SUSE LINUX 10.1
                                SUSE LINUX 10.0
                                SUSE LINUX 9.3
                                SuSE Linux Desktop 1.0
                                SuSE Linux Enterprise Server 8
                                SuSE Linux Openexchange Server 4
                                SUSE LINUX Retail Solution 8
                                SuSE Linux School Server
                                SuSE Linux Standard Server 8
                                SUSE SLED 10
                                SUSE SLES 10
                                SUSE SLES 9
                                UnitedLinux 1.0
        Vulnerability Type:     remote code execution
        Severity (1-10):        8
        SUSE Default Package:   yes
        Cross-References:       CVE-2006-6169, CVE-2006-6235

    Content of This Advisory:
        1) Security Vulnerability Resolved:
             two security problems in GPG
           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

   Two security problems were fixed in the GNU Privacy Guard (GPG).

   - Specially crafted files could overflow a buffer when gpg was used
     in interactive mode (CVE-2006-6169).

   - Specially crafted files could modify a function pointer and
     could potentially execute code this way. (CVE-2006-6235).

   Update for all SUSE Linux based products have been released.

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 <file.rpm>

   to apply the update, replacing <file.rpm> with the filename of the
   downloaded RPM package.

   x86 Platform:

   openSUSE 10.2:
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/gpg-1.4.5-24.2.i586.rpm
          0032014cef28fd9d575ca9d56886dc9a
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/gpg2-1.9.22-20.2.i586.rpm
          8cdf17f4928497c703df0986012bd924

   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/gpg-1.4.2-23.12.i586.rpm
          714ad111277495f85fb4d75c07a436e1
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/gpg2-1.9.18-17.13.i586.rpm
          df328ffaa0b0fa34e70932dd8eafd399

   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/gpg-1.4.2-5.11.i586.rpm
          bbdac2ac9cf42f2e0744f93c7a27bd64
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/gpg2-1.9.18-2.11.i586.rpm
          6b96bf0aa835b5c5a6d38f3fe9baa020

   SUSE LINUX 9.3:
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/gpg-1.4.0-4.11.i586.rpm
          1f188d6e98593753dbf0115758c60700
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/gpg2-1.9.14-6.13.i586.rpm
          493bb161ab9a0ee7e8b687da49fc874f

   Power PC Platform:

   openSUSE 10.2:
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/gpg-1.4.5-24.2.ppc.rpm
          8ba71e773c0ed4bfad10017d4f0ad769
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/gpg2-1.9.22-20.2.ppc.rpm
          04e4aa189832a2834ac843d3d216b560

   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/gpg-1.4.2-23.12.ppc.rpm
          87d3e2efab5fda6d0c0fb0228e8089eb
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/gpg2-1.9.18-17.13.ppc.rpm
          9ecd1af3d67515388dc5f9c797d33fde

   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/gpg-1.4.2-5.11.ppc.rpm
          36dd086f17d69a2344387249f4f59828
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/gpg2-1.9.18-2.11.ppc.rpm
          0b0a3f42511f722f1113ceb2ddb1fe42

   x86-64 Platform:

   openSUSE 10.2:
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/gpg-1.4.5-24.2.x86_64.rpm
          178ec43c6b057b055e64fd8ce3b370f3
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/gpg2-1.9.22-20.2.x86_64.rpm
          a480e34bc72c13902b060774a8c93614

   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/gpg-1.4.2-23.12.x86_64.rpm
          424104d7e79aa13997a9cd5bf48daaed
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/gpg2-1.9.18-17.13.x86_64.rpm
          f9813d58d65585d3216ce4a514288e60

   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/gpg-1.4.2-5.11.x86_64.rpm
          542621ad20461324061e95d757f062a9
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/gpg2-1.9.18-2.11.x86_64.rpm
          6e40568843721500e6e7a01e49478be5

   SUSE LINUX 9.3:
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/gpg-1.4.0-4.11.x86_64.rpm
          d0857cd1ef3d71961e866f56c565b32d
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/gpg2-1.9.14-6.13.x86_64.rpm
          20eb29a34cd71e5d1fa86bb53522a5ca

   Sources:

   openSUSE 10.2:
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/gpg-1.4.5-24.2.src.rpm
          8b319a4138cc1ff4304dc45c369936c6
   ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/gpg2-1.9.22-20.2.src.rpm
          6ea5c120e635118233a97c5877ca10c0

   SUSE LINUX 10.1:
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/src/gpg-1.4.2-23.12.src.rpm
          551331ff3994d1e0a6a1c893f9d99c84
   ftp://ftp.suse.com/pub/suse/update/10.1/rpm/src/gpg2-1.9.18-17.13.src.rpm
          4dcf00273942790ccc8945f1badb441d

   SUSE LINUX 10.0:
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/gpg-1.4.2-5.11.src.rpm
          47425c0af8df3d11100bc938db0d9141
   ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/gpg2-1.9.18-2.11.src.rpm
          d76d488c78aa5c047f9d0d3a72bb1509

   SUSE LINUX 9.3:
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/gpg-1.4.0-4.11.src.rpm
          86c9afba71507f0d4f3f7e88fa599ea1
   ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/gpg2-1.9.14-6.13.src.rpm
          a911124ed914970d7c458caf03ddd709

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

   UnitedLinux 1.0
   SuSE Linux Openexchange Server 4
   Open Enterprise Server
   Novell Linux POS 9
   SuSE Linux Enterprise Server 8
   SuSE Linux Standard Server 8
   SuSE Linux School Server
   SUSE LINUX Retail Solution 8
   SuSE Linux Desktop 1.0
   SUSE SLES 9
     http://support.novell.com/techcenter/psdb/440643b5b7f99c513f043f911ca9d906.h...

   Novell Linux Desktop 9
   SUSE SLES 10
   SUSE SLED 10
     http://support.novell.com/techcenter/psdb/440643b5b7f99c513f043f911ca9d906.h...
     http://support.novell.com/techcenter/psdb/d29d6e06422f5a6d9e87580b666bbb83.h...

______________________________________________________________________________

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 <file>

    replacing <file> with the name of the file where you saved 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 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 <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 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 <filename.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
       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
                <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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