SUSE: 2010-050 Moderate: Local Privilege Escalation in Kernel

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                        SUSE Security Announcement

        Package:                kernel
        Announcement ID:        SUSE-SA:2010:050
        Date:                   Wed, 13 Oct 2010 17:00:00 +0000
        Affected Products:      SLE 11 SERVER Unsupported Extras
                                SUSE Linux Enterprise High Availability Extension 11 SP1
                                SUSE Linux Enterprise Desktop 11 SP1
                                SUSE Linux Enterprise Server 11 SP1
        Vulnerability Type:     local privilege escalation
        CVSS v2 Base Score:     7.2 (AV:L/AC:L/Au:N/C:C/I:C/A:C)
        SUSE Default Package:   yes
        Cross-References:       CVE-2010-2954, CVE-2010-2960, CVE-2010-2962
                                CVE-2010-3078, CVE-2010-3079, CVE-2010-3080
                                CVE-2010-3081, CVE-2010-3296, CVE-2010-3297
                                CVE-2010-3298, CVE-2010-3310

    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 SUSE Linux Enterprise 11 Service Pack 1 kernel contains various
   security fixes and lots of other bugfixes.

   Following security issues were fixed:

   CVE-2010-2960: local users could crash the system by causing a NULL
   deref in the keyctl_session_to_parent() function

   CVE-2010-2954: local users could crash the system by causing a NULL
   deref via IRDA sockets

   CVE-2010-3079: local users could crash the system by causing a NULL
   deref in ftrace

   CVE-2010-3078, CVE-2010-3297, CVE-2010-3298, CVE-2010-3081,
   CVE-2010-3296: several kernel functions could leak kernel stack
   memory contents

   CVE-2010-3080: local users could cause dereference of an uninitialized
   pointer via /dev/sequencer

   CVE-2010-3310: local users could corrupt kernel heap memory via
   ROSE sockets

   CVE-2010-2962: local users could write to any kernel memory location
   via the i915 GEM ioctl interface

   Additionally this update restores the compat_alloc_userspace()
   inline function.

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:
   
   SLE 11 SERVER Unsupported Extras
     
     
     
     
     
   
   SUSE Linux Enterprise Server 11 SP1
     
     
     
     
     
   
   SUSE Linux Enterprise Desktop 11 SP1
     
     
   
   SUSE Linux Enterprise High Availability Extension 11 SP1
     
     
     
     
     

______________________________________________________________________________

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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