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SUSE Security Summary Report SUSE-SR:2006:024
From: Thomas Biege <thomas () suse de>
Date: Fri, 06 Oct 2006 15:25:37 +0200


-----BEGIN PGP SIGNED MESSAGE-----

______________________________________________________________________________

                        SUSE Security Summary Report

        Announcement ID:        SUSE-SR:2006:024
        Date:                   Fri, 06 Oct 2006 14:00:00 +0000
        Cross-References:       CVE-2006-4924,CVE-2006-4925
                                CVE-2006-2937,CVE-2006-2940
                                CVE-2006-3738,CVE-2006-4343
                                CVE-2006-4095,CVE-2006-4096

    Content of this advisory:
        1) Solved Security Vulnerabilities:
            - openssh: remote denial of service (CVE-2006-4924,CVE-2006-4925)
            - openssl: remote denial of service (CVE-2006-2937,CVE-2006-2940,
                                                 CVE-2006-3738,CVE-2006-4343)
            - bind9: remote denial of service (CVE-2006-4095,CVE-2006-4096)
        2) Pending Vulnerabilities, Solutions, and Work-Arounds:
            - mono
            - openssl
            - compat-openssl
            - php 4 and 5
        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.

   - openssh: remote denial of service
     Some denial of service problems have been fixed in OpenSSH which could
     be used to cause lots of CPU consumption on a remote openssh server.
     (CVE-2006-4924)
     Additionaly a remote attacker that is able to inject network traffic
     could cause a client connection to close. (CVE-2006-4925)

   - openssl: remote denial of service
     A buffer overflow within the SSL_get_shared_ciphers() function and
     a DoS condition known as "parasitic public keys" have been fixed. The
     later problem allowed attackers to trick the OpenSSL engine to spend an
     extraordinary amount of time to process public keys.
     The following CAN numbers have been assigned: CVE-2006-2937,
     CVE-2006-2940, CVE-2006-3738 and CVE-2006-4343.
   
   - bind9: rmote denial of service
     This update fixes two vulnerabilities in bind that allow a remote
     attacker to trigger a denial-of-service attack.i
     All packages have been released now.
     (VU#697164/CVE-2006-4096, VU#915404/CVE-2006-4095)

______________________________________________________________________________

2) Pending Vulnerabilities, Solutions, and Work-Arounds

   - mono
     Sebastian Krahmer of the SuSE Security-Team found a local privilege
     escalation bug in a Mono class. New packages will be released as soon
     as QA testing finished successfully.

   - compat-openssl*
     The compat-openssl packages are vulnerable to CVE-2006-4343, CVE-2006-
     3738, CVE-2006-2937, CVE-2006-2940, CVE-2006-4339. New packages will
     be released soon.

   - openssl
     The patch for CVE-2006-2940 introduced another denial of service
     condition. New packages will be available very soon.

   - php 4 and 5
     Updates for various vulnerabilities in php 4 and 5 will be released
     soon.

______________________________________________________________________________

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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