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______________________________________________________________________________

                        SUSE Security Announcement

        Package:                kernel
        Announcement ID:        SUSE-SA:2010:023
        Date:                   Thu, 06 May 2010 13:00:00 +0000
        Affected Products:      SLE SDK 10 SP2
                                SUSE Linux Enterprise Desktop 10 SP2
                                SUSE Linux Enterprise Server 10 SP2
        Vulnerability Type:     remote denial of service
        CVSS v2 Base Score:     7.8 (AV:N/AC:L/Au:N/C:N/I:N/A:C)
        SUSE Default Package:   yes
        Cross-References:       CVE-2009-4020, CVE-2009-4537, CVE-2010-0410
                                CVE-2010-1083, CVE-2010-1086, CVE-2010-1088

    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

   This update fixes several security issues and various bugs in the
   SUSE Linux Enterprise 10 SP 2 kernel. The bugs fixed include a serious
   data corruption regression in NFSv4 introduced by the previous update.

   Following security issues were fixed:
   CVE-2009-4537: drivers/net/r8169.c in the r8169 driver in the Linux
   kernel does not properly check the size of an Ethernet frame that
   exceeds the MTU, which allows remote attackers to (1) cause a denial
   of service (temporary network outage) via a packet with a crafted
   size, in conjunction with certain packets containing A characters   and certain packets containing E characters; or (2) cause a denial of
   service (system crash) via a packet with a crafted size, in conjunction
   with certain packets containing '0' characters, related to the value
   of the status register and erroneous behavior associated with the
   RxMaxSize register.

   CVE-2010-1086: The ULE decapsulation functionality in
   drivers/media/dvb/dvb-core/dvb_net.c in dvb-core in the Linux kernel
   earlier allows attackers to cause a denial of service (infinite loop)
   via a crafted MPG2-TS frame, related to an invalid Payload Pointer
   ULE.

   CVE-2010-1088: fs/namei.c in Linux kernel does not always follow NFS
   automount "symlinks," which allows attackers to have an unknown impact,
   related to LOOKUP_FOLLOW.

   CVE-2009-4020: Stack-based buffer overflow in the hfs subsystem in the
   Linux kernel allows remote attackers to have an unspecified impact
   via a crafted Hierarchical File System (HFS) filesystem, related to
   the hfs_readdir function in fs/hfs/dir.c.

   CVE-2010-1083: The processcompl_compat function in
   drivers/usb/core/devio.c in the Linux kernel does not clear the
   transfer buffer before returning to user space when a USB command
   fails, which might make it easier for physically proximate attackers   to obtain sensitive information (kernel memory).

   CVE-2010-0410: drivers/connector/connector.c in the Linux kernel
   allows local users to cause a denial of service (memory consumption and
   system crash) by sending the kernel many NETLINK_CONNECTOR messages.

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:

   SUSE Linux Enterprise Desktop 10 SP2 for AMD64 and Intel EM64T
     https://download.novell.com/patch/finder/?keywords=37bb490b2d9ca27c1027e09c0453381c

   SUSE Linux Enterprise Server 10 SP2
     https://download.novell.com/patch/finder/?keywords=37bb490b2d9ca27c1027e09c0453381c
     https://download.novell.com/patch/finder/?keywords=080b3adeb2675c55f2a71c2e68f85e07
     https://download.novell.com/patch/finder/?keywords=ef2b9d5d6bc17682fa94fd4898564773
     https://download.novell.com/patch/finder/?keywords=e7da2abdeaf19e694fa26d810aaab118
     https://download.novell.com/patch/finder/?keywords=43e02dcbe650533bbc5c4aeb6300f0d0

   SLE SDK 10 SP2
     https://download.novell.com/patch/finder/?keywords=37bb490b2d9ca27c1027e09c0453381c
     https://download.novell.com/patch/finder/?keywords=ef2b9d5d6bc17682fa94fd4898564773
     https://download.novell.com/patch/finder/?keywords=e7da2abdeaf19e694fa26d810aaab118
     https://download.novell.com/patch/finder/?keywords=43e02dcbe650533bbc5c4aeb6300f0d0

   SUSE Linux Enterprise Desktop 10 SP2
     https://download.novell.com/patch/finder/?keywords=37bb490b2d9ca27c1027e09c0453381c
     https://download.novell.com/patch/finder/?keywords=43e02dcbe650533bbc5c4aeb6300f0d0

   SUSE Linux Enterprise Desktop 10 SP2 for x86
     https://download.novell.com/patch/finder/?keywords=43e02dcbe650533bbc5c4aeb6300f0d0

______________________________________________________________________________

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
                .

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