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SuSE: 2011-019: 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 2.6.32.36 and fixes various bugs and security issues. Following security issues were fixed: CVE-2011-1493: When parsing the FAC_NATIONAL_DIGIS facilities field, it was possible for a remote host to provide more digipeaters than [More...]
______________________________________________________________________________

                        SUSE Security Announcement

        Package:                kernel
        Announcement ID:        SUSE-SA:2011:019
        Date:                   Thu, 28 Apr 2011 11:00:00 +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:     remote denial of service, local privilege escalation
        CVSS v2 Base Score:     7.9 (AV:A/AC:M/Au:N/C:C/I:C/A:C)
        SUSE Default Package:   yes
        Cross-References:       CVE-2010-3880, CVE-2010-4251, CVE-2010-4656
                                CVE-2011-0191, CVE-2011-0521, CVE-2011-0712
                                CVE-2011-1013, CVE-2011-1016, CVE-2011-1082
                                CVE-2011-1090, CVE-2011-1093, CVE-2011-1163
                                CVE-2011-1180, CVE-2011-1182, CVE-2011-1476
                                CVE-2011-1477, CVE-2011-1478, CVE-2011-1493
                                CVE-2011-1573

    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 Service Pack 1 kernel was updated to
   2.6.32.36 and fixes various bugs and security issues.

   Following security issues were fixed:
   CVE-2011-1493: When parsing the FAC_NATIONAL_DIGIS facilities field,
   it was possible for a remote host to provide more digipeaters than
   expected, resulting in heap corruption.

   (no CVEs assigned yet): In the rose networking stack, when parsing
   the FAC_CCITT_DEST_NSAP and FAC_CCITT_SRC_NSAP facilities fields,
   a remote host could provide a length of less than 10, resulting in
   an underflow in a memcpy size, causing a kernel panic due to massive
   heap corruption.  A length of greater than 20 results in a stack
   overflow of the callsign array

   CVE-2011-1163: The code for evaluating OSF partitions (in
   fs/partitions/osf.c) contained a bug that leaks data from kernel heap
   memory to userspace for certain corrupted OSF partitions.

   CVE-2011-1093: A bug in the order of dccp_rcv_state_process() was fixed
   that still permitted reception even after closing the socket. A Reset
   after close thus causes a NULL pointer dereference by not preventing
   operations on an already torn-down socket.

   CVE-2011-1013: A signedness issue in drm_modeset_ctl() could be used
   by local attackers with access to the drm devices to potentially
   crash the kernel or escalate privileges.

   CVE-2011-1082: The epoll subsystem in Linux did not prevent users
   from creating circular epoll file structures, potentially leading to
   a denial of service (kernel deadlock).

   CVE-2011-0712: Multiple buffer overflows in the caiaq Native
   Instruments USB audio functionality in the Linux kernel might have
   allowed attackers to cause a denial of service or possibly have
   unspecified other impact via a long USB device name, related to (1)
   the snd_usb_caiaq_audio_init function in sound/usb/caiaq/audio.c and
   (2) the snd_usb_caiaq_midi_init function in sound/usb/caiaq/midi.c.

   CVE-2011-1182: Local attackers could send signals to their programs
   that looked like coming from the kernel, potentially gaining privileges
   in the context of setuid programs.

   CVE-2011-1478: An issue in the core GRO code where an skb belonging to
   an unknown VLAN is reused could result in a NULL pointer dereference.

   CVE-2011-1476: Specially crafted requests may be written to
   /dev/sequencer resulting in an underflow when calculating a size for a
   copy_from_user() operation in the driver for MIDI interfaces. On x86,
   this just returns an error, but it could have caused memory corruption
   on other architectures. Other malformed requests could have resulted
   in the use of uninitialized variables.

   CVE-2011-1477: Due to a failure to validate user-supplied indexes in
   the driver for Yamaha YM3812 and OPL-3 chips, a specially crafted
   ioctl request could have been sent to /dev/sequencer, resulting in
   reading and writing beyond the bounds of heap buffers, and potentially
   allowing privilege escalation.

   CVE-2011-0191: A information leak in the XFS geometry calls could be
   used by local attackers to gain access to kernel information.

   CVE-2011-1090: A page allocator issue in NFS v4 ACL handling that
   could lead to a denial of service (crash) was fixed.

   CVE-2010-3880: net/ipv4/inet_diag.c in the Linux kernel did not
   properly audit INET_DIAG bytecode, which allowed local users
   to cause a denial of service (kernel infinite loop) via crafted
   INET_DIAG_REQ_BYTECODE instructions in a netlink message that contains
   multiple attribute elements, as demonstrated by INET_DIAG_BC_JMP
   instructions.

   CVE-2010-4656: Fixed a buffer size issue in "usb iowarrior" module,
   where a malicious device could overflow a kernel buffer.

   CVE-2011-0521: The dvb_ca_ioctl function in
   drivers/media/dvb/ttpci/av7110_ca.c in the Linux kernel did not check
   the sign of a certain integer field, which allowed local users to cause
   a denial of service (memory corruption) or possibly have unspecified
   other impact via a negative value.

   CVE-2011-1180: In the IrDA module, length fields provided by a peer
   for names and attributes may be longer than the destination array
   sizes and were not checked, this allowed local attackers (close to
   the irda port) to potentially corrupt memory.

   CVE-2010-4251: A system out of memory condition (denial of service)
   could be triggered with a large socket backlog, exploitable by
   local users.  This has been addressed by backlog limiting.

   CVE-2011-1016: The Radeon GPU drivers in the Linux kernel did not
   properly validate data related to the AA resolve registers, which
   allowed local users to write to arbitrary memory locations associated
   with (1) Video RAM (aka VRAM) or (2) the Graphics Translation Table
   (GTT) via crafted values.

   CVE-2011-1573: Bounds checking was missing in AARESOLVE_OFFSET, which
   allowed local attackers to overwrite kernel memory and so escalate
   privileges or crash the kernel.

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 Server 11 SP1
     http://download.novell.com/patch/finder/?keywords=03cf105d1f0cfb0d3d3288b12d9e4622
     http://download.novell.com/patch/finder/?keywords=c45827cb7cc89843ef7e93e246961f53
     http://download.novell.com/patch/finder/?keywords=68bb8a1c1491e9fae1ee541645084861
     http://download.novell.com/patch/finder/?keywords=3971e9fa298d12ad3517538fd97d750f
     http://download.novell.com/patch/finder/?keywords=a555a5338fdac718107ca5b4da82c923

   SUSE Linux Enterprise Desktop 11 SP1
     http://download.novell.com/patch/finder/?keywords=03cf105d1f0cfb0d3d3288b12d9e4622
     http://download.novell.com/patch/finder/?keywords=a555a5338fdac718107ca5b4da82c923

   SUSE Linux Enterprise High Availability Extension 11 SP1
     http://download.novell.com/patch/finder/?keywords=03cf105d1f0cfb0d3d3288b12d9e4622
     http://download.novell.com/patch/finder/?keywords=c45827cb7cc89843ef7e93e246961f53
     http://download.novell.com/patch/finder/?keywords=68bb8a1c1491e9fae1ee541645084861
     http://download.novell.com/patch/finder/?keywords=3971e9fa298d12ad3517538fd97d750f
     http://download.novell.com/patch/finder/?keywords=a555a5338fdac718107ca5b4da82c923

______________________________________________________________________________

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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