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SuSE: 2010-031: Linux kernel Print E-mail
User Rating:      How can I rate this item?
Posted by Benjamin D. Thomas   
SuSE The SUSE Linux Enterprise 11 GA Kernel was updated to 2.6.27.48 fixing various bugs and security issues. CVE-2010-1641: The do_gfs2_set_flags function in fs/gfs2/file.c in the Linux kernel does not verify the ownership of a file, which allows local users to bypass intended access restrictions via a SETFLAGS [More...]
______________________________________________________________________________

                        SUSE Security Announcement

        Package:                kernel
        Announcement ID:        SUSE-SA:2010:031
        Date:                   Tue, 20 Jul 2010 11:00:00 +0000
        Affected Products:      openSUSE 11.1
                                SUSE Linux Enterprise High Availability Extension 11
                                SUSE Linux Enterprise Desktop 11
                                SUSE Linux Enterprise Server 11
        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-2009-1389, CVE-2009-4537, CVE-2010-1087
                                CVE-2010-1162, CVE-2010-1437, CVE-2010-1446
                                CVE-2010-1641, CVE-2010-1643

    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 11 GA Kernel was updated to 2.6.27.48 fixing
   various bugs and security issues.

   CVE-2010-1641: The do_gfs2_set_flags function in fs/gfs2/file.c in the
   Linux kernel does not verify the ownership of a file, which allows
   local users to bypass intended access restrictions via a SETFLAGS
   ioctl request.

   CVE-2010-1087: The nfs_wait_on_request function in fs/nfs/pagelist.c in
   the Linux kernel allows attackers to cause a denial of service (Oops)
   via unknown vectors related to truncating a file and an operation
   that is not interruptible.

   CVE-2010-1643: mm/shmem.c in the Linux kernel, when strict overcommit
   is enabled, does not properly handle the export of shmemfs objects
   by knfsd, which allows attackers to cause a denial of service (NULL
   pointer dereference and knfsd crash) or possibly have unspecified
   other impact via unknown vectors.

   CVE-2010-1437: Race condition in the find_keyring_by_name function
   in security/keys/keyring.c in the Linux kernel allows local users
   to cause a denial of service (memory corruption and system crash)
   or possibly have unspecified other impact via keyctl session commands
   that trigger access to a dead keyring that is undergoing deletion by
   the key_cleanup function.

   CVE-2010-1446: arch/1/mm/fsl_booke_mmu.c in KGDB in the Linux kernel,
   when running on PowerPC, does not properly perform a security check
   for access to a kernel page, which allows local users to overwrite
   arbitrary kernel memory, related to Fsl booke.

   CVE-2010-1162: The release_one_tty function in drivers/char/tty_io.c in
   the Linux kernel omits certain required calls to the put_pid function,
   which has unspecified impact and local attack vectors.

   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. NOTE: this vulnerability exists because of an incorrect
   fix for CVE-2009-1389. Code execution might be possible.

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.


   x86 Platform:

   openSUSE 11.1:
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-debug-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-debug-base-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-debug-extra-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-default-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-default-base-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-default-extra-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-pae-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-pae-base-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-pae-extra-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-source-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-syms-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-trace-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-trace-base-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-trace-extra-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-vanilla-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-xen-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-xen-base-2.6.27.48-0.1.1.i586.rpm
   http://download.opensuse.org/update/11.1/rpm/i586/kernel-xen-extra-2.6.27.48-0.1.1.i586.rpm

   Platform Independent:

   openSUSE 11.1:
   http://download.opensuse.org/update/11.1/rpm/noarch/kernel-docs-2.6.3-3.13.109.noarch.rpm

   Power PC Platform:

   openSUSE 11.1:
   http://download.opensuse.org/update/11.1/rpm/ppc/kernel-default-2.6.27.48-0.1.1.ppc.rpm
   http://download.opensuse.org/update/11.1/rpm/ppc/kernel-default-base-2.6.27.48-0.1.1.ppc.rpm
   http://download.opensuse.org/update/11.1/rpm/ppc/kernel-default-extra-2.6.27.48-0.1.1.ppc.rpm
   http://download.opensuse.org/update/11.1/rpm/ppc/kernel-kdump-2.6.27.48-0.1.1.ppc.rpm
   http://download.opensuse.org/update/11.1/rpm/ppc/kernel-ppc64-2.6.27.48-0.1.1.ppc.rpm
   http://download.opensuse.org/update/11.1/rpm/ppc/kernel-ppc64-base-2.6.27.48-0.1.1.ppc.rpm
   http://download.opensuse.org/update/11.1/rpm/ppc/kernel-ppc64-extra-2.6.27.48-0.1.1.ppc.rpm
   http://download.opensuse.org/update/11.1/rpm/ppc/kernel-ps3-2.6.27.48-0.1.1.ppc.rpm
   http://download.opensuse.org/update/11.1/rpm/ppc/kernel-source-2.6.27.48-0.1.1.ppc.rpm
   http://download.opensuse.org/update/11.1/rpm/ppc/kernel-syms-2.6.27.48-0.1.1.ppc.rpm
   http://download.opensuse.org/update/11.1/rpm/ppc/kernel-vanilla-2.6.27.48-0.1.1.ppc.rpm

   x86-64 Platform:

   openSUSE 11.1:
   http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-debug-2.6.27.48-0.1.1.x86_64.rpm
   http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-debug-base-2.6.27.48-0.1.1.x86_64.rpm
   http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-debug-extra-2.6.27.48-0.1.1.x86_64.rpm
   http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-default-2.6.27.48-0.1.1.x86_64.rpm
   http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-default-base-2.6.27.48-0.1.1.x86_64.rpm
   http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-default-extra-2.6.27.48-0.1.1.x86_64.rpm
   http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-source-2.6.27.48-0.1.1.x86_64.rpm
   http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-syms-2.6.27.48-0.1.1.x86_64.rpm
   http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-trace-2.6.27.48-0.1.1.x86_64.rpm
   http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-trace-base-2.6.27.48-0.1.1.x86_64.rpm
   http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-trace-extra-2.6.27.48-0.1.1.x86_64.rpm
   http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-vanilla-2.6.27.48-0.1.1.x86_64.rpm
   http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-xen-2.6.27.48-0.1.1.x86_64.rpm
   http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-xen-base-2.6.27.48-0.1.1.x86_64.rpm
   http://download.opensuse.org/update/11.1/rpm/x86_64/kernel-xen-extra-2.6.27.48-0.1.1.x86_64.rpm

   Sources:

   openSUSE 11.1:
   http://download.opensuse.org/update/11.1/rpm/src/kernel-debug-2.6.27.48-0.1.1.nosrc.rpm
   http://download.opensuse.org/update/11.1/rpm/src/kernel-default-2.6.27.48-0.1.1.nosrc.rpm
   http://download.opensuse.org/update/11.1/rpm/src/kernel-docs-2.6.3-3.13.109.src.rpm
   http://download.opensuse.org/update/11.1/rpm/src/kernel-kdump-2.6.27.48-0.1.1.nosrc.rpm
   http://download.opensuse.org/update/11.1/rpm/src/kernel-pae-2.6.27.48-0.1.1.nosrc.rpm
   http://download.opensuse.org/update/11.1/rpm/src/kernel-ppc64-2.6.27.48-0.1.1.nosrc.rpm
   http://download.opensuse.org/update/11.1/rpm/src/kernel-ps3-2.6.27.48-0.1.1.nosrc.rpm
   http://download.opensuse.org/update/11.1/rpm/src/kernel-source-2.6.27.48-0.1.1.src.rpm
   http://download.opensuse.org/update/11.1/rpm/src/kernel-syms-2.6.27.48-0.1.1.src.rpm
   http://download.opensuse.org/update/11.1/rpm/src/kernel-trace-2.6.27.48-0.1.1.nosrc.rpm
   http://download.opensuse.org/update/11.1/rpm/src/kernel-vanilla-2.6.27.48-0.1.1.nosrc.rpm
   http://download.opensuse.org/update/11.1/rpm/src/kernel-xen-2.6.27.48-0.1.1.nosrc.rpm

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

   SLE 11 SERVER Unsupported Extras
     http://download.novell.com/patch/finder/?keywords=7c255bf89525f242ab9deddcf14e6517
     http://download.novell.com/patch/finder/?keywords=34efb3de15e5405c1817c287028a50e3
     http://download.novell.com/patch/finder/?keywords=6a5b519e1125164aefd647adb31ccec8
     http://download.novell.com/patch/finder/?keywords=3c314aa8e3d1c4878e06108d767c18da
     http://download.novell.com/patch/finder/?keywords=1a1e84bdf877ca5c38ecac3616374922

   SUSE Linux Enterprise Server 11
     http://download.novell.com/patch/finder/?keywords=c8a29eec659b0b2b3e85c610b67beacd
     http://download.novell.com/patch/finder/?keywords=f73f22d4b713e9a7674cc8c4eebf91dd
     http://download.novell.com/patch/finder/?keywords=2959a2080579b86be5f71889c23098f9
     http://download.novell.com/patch/finder/?keywords=99ed0d9e003dfe8866db7105d4850a09
     http://download.novell.com/patch/finder/?keywords=66504af0afe753b5175112b44bc8827d

   SUSE Linux Enterprise Desktop 11
     http://download.novell.com/patch/finder/?keywords=c8a29eec659b0b2b3e85c610b67beacd
     http://download.novell.com/patch/finder/?keywords=66504af0afe753b5175112b44bc8827d

   SUSE Linux Enterprise High Availability Extension 11
     http://download.novell.com/patch/finder/?keywords=c8a29eec659b0b2b3e85c610b67beacd
     http://download.novell.com/patch/finder/?keywords=f73f22d4b713e9a7674cc8c4eebf91dd
     http://download.novell.com/patch/finder/?keywords=2959a2080579b86be5f71889c23098f9
     http://download.novell.com/patch/finder/?keywords=99ed0d9e003dfe8866db7105d4850a09
     http://download.novell.com/patch/finder/?keywords=66504af0afe753b5175112b44bc8827d

______________________________________________________________________________

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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