Date: Fri, 28 Sep 2007 16:17:10 +0200
From: Thomas Biege <thomas@suse.de>
To: opensuse-security-announce@opensuse.org
Subject: SUSE Security Summary Report SUSE-SR:2007:019


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______________________________________________________________________________

                        SUSE Security Summary Report

        Announcement ID:        SUSE-SR:2007:019
        Date:                   Fri, 28 Sep 2007 09:00:00 +0000
        Cross-References:       CVE-2001-1267, CVE-2002-0399, CVE-2007-4476,
                                CVE-2007-2833, CVE-2007-4743, CVE-2007-0244,
                                CVE-2007-3782, CVE-2007-4137, CVE-2007-5007,
                                CVE-2007-4460

    Content of this advisory:
        1) Solved Security Vulnerabilities:
            - star
            - cpio
            - emacs
            - krb5
            - pptpd
            - mysql
            - qt3
            - balsa
            - id3lib
        2) Pending Vulnerabilities, Solutions, and Work-Arounds:
            - kernel x86_64: local privilege escalation (CVE-2007-4573)
        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.

   - star
     This update fixes a directory traversal bug. (CVE-2001-1267,CVE-2002-0399)

   - cpio
     This update fixes a bug in cpio in function safer_name_suffix() which
     leads to a crashing stack. Exploitability is unknown. (CVE-2007-4476)
     
   - emacs
     This update fixes a bug in parsing GIF images that lead to a crash of
     emacs. (CVE-2007-2833)

   - krb5
     This update improves the patch for the previously released security
     update of krb5 to fix CVE-2007-3999 and CVE-2007-4000. (CVE-2007-4743)

   - pptpd
     This update fixes a bug found by regression tests. The error appears
     in code processing out-of-order sequence numbers of some MPPE implemen-
     tations. (CVE-2007-0244)
     This only affects openSUSE 10.2.

   - mysql
     This update provides fixes for a remote crash (CVE-2007-3780), a bug
     that allows to query tables without proper authorization (CVE-2007-
     3781) and the possibility gain update privileges without popper autho-
     rization (CVE-2007-3782)

   - qt3
     This update fixes a buffer overflow in qt3 while handling UTF8 char-
     acters. (CVE-2007-4137)
     Exploitability is unknown. Please restart your GUI application after
     the update to reload shared libraries.

   - balsa
     This update of balsa (a GNOME mail program) fixes a buffer overflow
     that can occur while reading data from an IMAP server. (CVE-2007-5007)
     This bug can be exploited to execute arbitrary code with the privileges
     of the user balsa runs with.
     This package does not exists on enterprise products.

   - id3lib
     This update improves the handling of temporary files. (CVE-2007-4460)
     Local users can abuse it to overwrite files with the privileges of other
     users.
     
______________________________________________________________________________

2) Pending Vulnerabilities, Solutions, and Work-Arounds

   There are several dozens updates in the queue that only have a minor or
   medium severity. Therefore only the most important ones will be listed
   in detail here.

   - kernel x86_64 - CVE-2007-4573
     The Linux kernel for the x86_64 architecture is vulnerable to a local
     privilege escalation. Exploits for this bug are available and can be used
     by local users to gain root privileges.
     There is no work-around known other then disabling the login of untrusted
     users or adding the patch (http://lkml.org/lkml/2007/9/21/513) from up-
     stream on your own.
     New and tested kernel packages from SUSE will be available at the begin-
     ning of week number 41 earliest.
     The "kernel-of-the-day" snapshot which is available from ftp.suse.com/
     pub/projects/kernel/kotd/ will also include the fix as soon as it was
     applied to the branches. Check the change-log of the RPM file to verify.
     NOTE: We can not provide support for a kernel not patched by us and for
           the kernel-of-the-day!  


______________________________________________________________________________

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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