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SuSE: 2011-038: Linux kernel Print E-mail
User Rating:      How can I rate this item?
Posted by Benjamin D. Thomas   
SuSE The SUSE Linux Enterprise 11 Service Pack 1 kernel was updated to 2.6.32.45 and fixes various bugs and security issues. Following security issues were fixed: CVE-2011-1776: Timo Warns reported an issue in the Linux implementation for GUID partitions. Users with physical access could gain access to [More...]
______________________________________________________________________________

                        SUSE Security Announcement

        Package:                kernel
        Announcement ID:        SUSE-SA:2011:038
        Date:                   Thu, 01 Sep 2011 15:00:00 +0000
        Affected Products:      SUSE Linux Enterprise High Availability Extension 11 SP1
                                SUSE Linux Enterprise Desktop 11 SP1
                                SUSE Linux Enterprise Server 11 SP1
        Vulnerability Type:     local kernel information leak
        CVSS v2 Base Score:     1.9 (AV:L/AC:M/Au:N/C:P/I:N/A:N)
        SUSE Default Package:   yes
        Cross-References:       CVE-2010-3881, CVE-2011-1776, CVE-2011-2495
                                CVE-2011-2700, CVE-2011-2909, CVE-2011-2918

    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:
            none
        6) Authenticity Verification and Additional Information

______________________________________________________________________________

1) Problem Description and Brief Discussion

   The SUSE Linux Enterprise 11 Service Pack 1 kernel was updated to
   2.6.32.45 and fixes various bugs and security issues.

   Following security issues were fixed:
   CVE-2011-1776: Timo Warns reported an issue in the Linux implementation
   for GUID partitions. Users with physical access could gain access to
   sensitive kernel memory by adding a storage device with a specially
   crafted corrupted partition table.

   CVE-2010-3881: The second part of this fix was not yet applied to our
   kernel: arch/x86/kvm/x86.c in the Linux kernel before 2.6.36.2 does
   not initialize certain structure members, which allows local users
   to obtain potentially sensitive information from kernel stack memory
   via read operations on the /dev/kvm device.

   CVE-2011-2495: The /proc/PID/io interface could be used by local
   attackers to gain information on other processes like number of
   password characters typed or similar.

   CVE-2011-2700: A small buffer overflow in the radio driver si4713-i2c
   was fixed that could potentially used by local attackers to crash
   the kernel or potentially execute code.

   CVE-2011-2909: A kernel information leak in the comedi driver from
   kernel to userspace was fixed.

   CVE-2011-2918: In the perf framework software event overflows could
   deadlock or delete an uninitialized timer.

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" module or the "zypper" commandline tool. The package and
   patch management stack will detect which updates are required and
   automatically perform 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 High Availability Extension 11 SP1
     http://download.novell.com/patch/finder/?keywords=73bec7d5d91bb11febbcb08523f6eec4
     http://download.novell.com/patch/finder/?keywords=6499f4c180072d54d54780ca1a2ecc2f
     http://download.novell.com/patch/finder/?keywords=59c338a7210363a87ce60c5448842190
     http://download.novell.com/patch/finder/?keywords=6fe973a3186c5d88981a175a256a8309
     http://download.novell.com/patch/finder/?keywords=7d158b734b5f3b91e58c550a6b83a4ca

   SUSE Linux Enterprise Desktop 11 SP1
     http://download.novell.com/patch/finder/?keywords=73bec7d5d91bb11febbcb08523f6eec4
     http://download.novell.com/patch/finder/?keywords=7d158b734b5f3b91e58c550a6b83a4ca

   SUSE Linux Enterprise Server 11 SP1
     http://download.novell.com/patch/finder/?keywords=73bec7d5d91bb11febbcb08523f6eec4
     http://download.novell.com/patch/finder/?keywords=6499f4c180072d54d54780ca1a2ecc2f
     http://download.novell.com/patch/finder/?keywords=59c338a7210363a87ce60c5448842190
     http://download.novell.com/patch/finder/?keywords=6fe973a3186c5d88981a175a256a8309
     http://download.novell.com/patch/finder/?keywords=7d158b734b5f3b91e58c550a6b83a4ca

______________________________________________________________________________

5) Pending Vulnerabilities, Solutions, and Work-Arounds:

   none
______________________________________________________________________________

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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