SUSE Linux Enterprise 9: 2009-015 Moderate: Kernel Remote Denial Of Service

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______________________________________________________________________________

                        SUSE Security Announcement

        Package:                kernel
        Announcement ID:        SUSE-SA:2009:015
        Date:                   Fri, 03 Apr 2009 11:00:00 +0000
        Affected Products:      SUSE SLES 9
                                Novell Linux Desktop 9
                                Open Enterprise Server
                                Novell Linux POS 9
        Vulnerability Type:     remote denial of service
        Severity (1-10):        7
        SUSE Default Package:   yes
        Cross-References:       CVE-2009-0028, CVE-2009-0065, CVE-2009-0322
                                CVE-2009-0675, CVE-2009-0676

    Content of This Advisory:
        1) Security Vulnerability Resolved:
             Linux kernel security update
           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 SUSE Linux Enterprise 9 kernel has been updated to fix lots of bugs
   and several security issues.

   Following security issues were fixed:
   CVE-2009-0028: The clone system call in the Linux kernel allows
   local users to send arbitrary signals to a parent process from an
   unprivileged child process by launching an additional child process
   with the CLONE_PARENT flag, and then letting this new process exit.

   CVE-2009-0675: The skfp_ioctl function in drivers/net/skfp/skfddi.c
   in the Linux kernel permits SKFP_CLR_STATS requests only when the
   CAP_NET_ADMIN capability is absent, instead of when this capability
   is present, which allows local users to reset the driver statistics,
   related to an "inverted logic" issue.

   CVE-2009-0676: The sock_getsockopt function in net/core/sock.c in
   the Linux kernel does not initialize a certain structure member,
   which allows local users to obtain potentially sensitive information
   from kernel memory via an SO_BSDCOMPAT getsockopt request.

   CVE-2009-0322: drivers/firmware/dell_rbu.c in the Linux kernel allows
   local users to cause a denial of service (system crash) via a read
   system call that specifies zero bytes from the (1) image_type or (2)
   packet_size file in /sys/devices/platform/dell_rbu/.

   CVE-2009-0065: Buffer overflow in net/sctp/sm_statefuns.c in the
   Stream Control Transmission Protocol (sctp) implementation in the
   Linux kernel allows remote attackers to have an unknown impact via
   an FWD-TSN (aka FORWARD-TSN) chunk with a large stream ID.

   The update was already released last Friday.

2) Solution or Work-Around

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

3) Special Instructions and Notes

   Please reboot the machine after installing the update.

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.

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

   Novell Linux Desktop 9 for x86
     

   Open Enterprise Server
     
     

   Novell Linux POS 9
     
     

   SUSE CORE 9 for x86
     
     

   SUSE CORE 9 for AMD64 and Intel EM64T
     

   SUSE CORE 9 for IBM zSeries 64bit
     

   SUSE CORE 9 for IBM S/390 31bit
     

   SUSE CORE 9 for IBM POWER
     

   SUSE SLES 9
     
     
     
     
     
     

   SUSE CORE 9 for Itanium Processor Family
     

   Novell Linux Desktop 9
     
     

   Novell Linux Desktop 9 for x86_64
     

______________________________________________________________________________

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.

    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.

  - 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-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
                .

    ====================================================================    SUSE's security contact is  or .
    The  public key is listed below.
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