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    SuSE: 2010-046: openSUSE 11.2 kernel Security Update

    Date23 Sep 2010
    CategoryopenSUSE
    39
    Posted ByLinuxSecurity Advisories
    This openSUSE 11.2 kernel was updated to 2.6.31.14, fixing several This openSUSE 11.2 kernel was updated to 2.6.31.14, fixing several security issues and bugs. security issues and bugs. A lot of ext4 filesystem stability fixes were also added. Following security issues have been fixed: CVE-2010-3301: Mismatch between 32bit and 64bit register usage in the
    
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    ______________________________________________________________________________
    
                            SUSE Security Announcement
    
            Package:                kernel
            Announcement ID:        SUSE-SA:2010:046
            Date:                   Thu, 23 Sep 2010 15:00:00 +0000
            Affected Products:      openSUSE 11.2
            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-2009-1389, CVE-2009-4537, CVE-2010-1087
                                    CVE-2010-1146, CVE-2010-1148, CVE-2010-1162
                                    CVE-2010-1437, CVE-2010-1636, CVE-2010-1641
                                    CVE-2010-2066, CVE-2010-2071, CVE-2010-2226
                                    CVE-2010-2248, CVE-2010-2478, CVE-2010-2492
                                    CVE-2010-2495, CVE-2010-2521, CVE-2010-2524
                                    CVE-2010-2537, CVE-2010-2538, CVE-2010-2798
                                    CVE-2010-2803, CVE-2010-2942, CVE-2010-2946
                                    CVE-2010-2954, CVE-2010-2955, CVE-2010-2959
                                    CVE-2010-2960, CVE-2010-3015, CVE-2010-3078
                                    CVE-2010-3079, CVE-2010-3080, CVE-2010-3081
                                    CVE-2010-3084, CVE-2010-3296, CVE-2010-3297
                                    CVE-2010-3298, CVE-2010-3301
    
        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 openSUSE 11.2 kernel was updated to 2.6.31.14, fixing several
       security issues and bugs.
    
       A lot of ext4 filesystem stability fixes were also added.
    
       Following security issues have been fixed:
       CVE-2010-3301: Mismatch between 32bit and 64bit register usage in the
       system call entry path could be used by local attackers to gain root
       privileges. This problem only affects x86_64 kernels.
    
       CVE-2010-3081: Incorrect buffer handling in the biarch-compat buffer
       handling could be used by local attackers to gain root privileges. This
       problem affects foremost x86_64, or potentially other biarch platforms,
       like PowerPC and S390x.
    
       CVE-2010-2959: Integer overflow in net/can/bcm.c in the Controller
       Area Network (CAN) implementation in the Linux kernel allowed attackers
       to execute arbitrary code or cause a denial of service (system crash)
       via crafted CAN traffic.
    
       CVE-2010-3084: A buffer overflow in the ETHTOOL_GRXCLSRLALL code
       could be used to crash the kernel or potentially execute code.
    
       CVE-2010-2955: A kernel information leak via the WEXT ioctl was fixed.
    
       CVE-2010-2960: The keyctl_session_to_parent function in
       security/keys/keyctl.c in the Linux kernel expects that a certain
       parent session keyring exists, which allowed local users to cause
       a denial of service (NULL pointer dereference and system crash) or
       possibly have unspecified other impact via a KEYCTL_SESSION_TO_PARENT
       argument to the keyctl function.
    
       CVE-2010-3080: A double free in an alsa error path was fixed, which
       could lead to kernel crashes.
    
       CVE-2010-3079: Fixed a ftrace NULL pointer dereference problem which
       could lead to kernel crashes.
    
       CVE-2010-3298: Fixed a kernel information leak in the net/usb/hso driver.
    
       CVE-2010-3296: Fixed a kernel information leak in the cxgb3 driver.
    
       CVE-2010-3297: Fixed a kernel information leak in the net/eql driver.
    
       CVE-2010-3078: Fixed a kernel information leak in the xfs filesystem.
    
       CVE-2010-2942: Fixed a kernel information leak in the net scheduler code.
    
       CVE-2010-2954: The irda_bind function in net/irda/af_irda.c in the
       Linux kernel did not properly handle failure of the irda_open_tsap
       function, which allowed local users to cause a denial of service
       (NULL pointer dereference and panic) and possibly have unspecified
       other impact via multiple unsuccessful calls to bind on an AF_IRDA
       (aka PF_IRDA) socket.
    
       CVE-2010-2226: The xfs_swapext function in fs/xfs/xfs_dfrag.c in the
       Linux kernel did not properly check the file descriptors passed to
       the SWAPEXT ioctl, which allowed local users to leverage write access
       and obtain read access by swapping one file into another file.
    
       CVE-2010-2946: The 'os2' xattr namespace on the jfs filesystem could
       be used to bypass xattr namespace rules.
    
       CVE-2010-2959: Integer overflow in net/can/bcm.c in the Controller
       Area Network (CAN) implementation in the Linux kernel allowed attackers
       to execute arbitrary code or cause a denial of service (system crash)
       via crafted CAN traffic.
    
       CVE-2010-3015: Integer overflow in the ext4_ext_get_blocks function
       in fs/ext4/extents.c in the Linux kernel allowed local users to cause
       a denial of service (BUG and system crash) via a write operation on
       the last block of a large file, followed by a sync operation.
    
       CVE-2010-2492: Buffer overflow in the ecryptfs_uid_hash macro in
       fs/ecryptfs/messaging.c in the eCryptfs subsystem in the Linux kernel
       might have allowed local users to gain privileges or cause a denial
       of service (system crash) via unspecified vectors.
    
       CVE-2010-2248: fs/cifs/cifssmb.c in the CIFS implementation in the
       Linux kernel allowed remote attackers to cause a denial of service
       (panic) via an SMB response packet with an invalid CountHigh value,
       as demonstrated by a response from an OS/2 server, related to the
       CIFSSMBWrite and CIFSSMBWrite2 functions.
    
       CVE-2010-2803: The drm_ioctl function in drivers/gpu/drm/drm_drv.c
       in the Direct Rendering Manager (DRM) subsystem in the Linux kernel
       allowed local users to obtain potentially sensitive information from
       kernel memory by requesting a large memory-allocation amount.
    
       CVE-2010-2478: A potential buffer overflow in the ETHTOOL_GRXCLSRLALL
       ethtool code was fixed which could be used by local attackers to
       crash the kernel or potentially execute code.
    
       CVE-2010-2524: The DNS resolution functionality in the CIFS
       implementation in the Linux kernel, when CONFIG_CIFS_DFS_UPCALL
       is enabled, relies on a user's keyring for the dns_resolver upcall
       in the cifs.upcall userspace helper, which allowed local users to
       spoof the results of DNS queries and perform arbitrary CIFS mounts
       via vectors involving an add_key call, related to a "cache stuffing"
       issue and MS-DFS referrals.
    
       CVE-2010-2798: The gfs2_dirent_find_space function in fs/gfs2/dir.c
       in the Linux kernel used an incorrect size value in calculations
       associated with sentinel directory entries, which allowed local users
       to cause a denial of service (NULL pointer dereference and panic) and
       possibly have unspecified other impact by renaming a file in a GFS2
       filesystem, related to the gfs2_rename function in fs/gfs2/ops_inode.c.
    
       CVE-2010-2537: The BTRFS_IOC_CLONE and BTRFS_IOC_CLONE_RANGE ioctls
       allowed a local user to overwrite append-only files.
    
       CVE-2010-2538: The BTRFS_IOC_CLONE_RANGE ioctl was subject to an
       integer overflow in specifying offsets to copy from a file, which
       potentially allowed a local user to read sensitive filesystem data.
    
       CVE-2010-2521: Multiple buffer overflows in fs/nfsd/nfs4xdr.c in the
       XDR implementation in the NFS server in the Linux kernel allowed
       remote attackers to cause a denial of service (panic) or possibly
       execute arbitrary code via a crafted NFSv4 compound WRITE request,
       related to the read_buf and nfsd4_decode_compound functions.
    
       CVE-2010-2066: The mext_check_arguments function in
       fs/ext4/move_extent.c in the Linux kernel allowed local users to
       overwrite an append-only file via a MOVE_EXT ioctl call that specifies
       this file as a donor.
    
       CVE-2010-2495: The pppol2tp_xmit function in drivers/net/pppol2tp.c in
       the L2TP implementation in the Linux kernel did not properly validate
       certain values associated with an interface, which allowed attackers
       to cause a denial of service (NULL pointer dereference and OOPS)
       or possibly have unspecified other impact via vectors related to a
       routing change.
    
       CVE-2010-2071: The btrfs_xattr_set_acl function in fs/btrfs/acl.c
       in btrfs in the Linux kernel did not check file ownership before
       setting an ACL, which allowed local users to bypass file permissions
       by setting arbitrary ACLs, as demonstrated using setfacl.
    
       CVE-2010-1641: The do_gfs2_set_flags function in fs/gfs2/file.c in the
       Linux kernel did not verify the ownership of a file, which allowed
       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 Linux kernel 2.6.x allowed attackers to cause a denial of service
       (Oops) via unknown vectors related to truncating a file and an
       operation that is not interruptible.
    
       CVE-2010-1636: The btrfs_ioctl_clone function in fs/btrfs/ioctl.c
       in the btrfs functionality in the Linux kernel did not ensure that a
       cloned file descriptor has been opened for reading, which allowed local
       users to read sensitive information from a write-only file descriptor.
    
       CVE-2010-1437: Race condition in the find_keyring_by_name function
       in security/keys/keyring.c in the Linux kernel allowed 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-2010-1148: The cifs_create function in fs/cifs/dir.c in the Linux
       kernel allowed local users to cause a denial of service (NULL pointer
       dereference and OOPS) or possibly have unspecified other impact via
       a NULL nameidata (aka nd) field in a POSIX file-creation request to
       a server that supports UNIX extensions.
    
       CVE-2010-1162: The release_one_tty function in drivers/char/tty_io.c
       in the Linux kernel omitted certain required calls to the put_pid
       function, which has unspecified impact and local attack vectors.
    
       CVE-2010-1146: The Linux kernel, when a ReiserFS filesystem exists,
       did not restrict read or write access to the .reiserfs_priv directory,
       which allowed local users to gain privileges by modifying (1)
       extended attributes or (2) ACLs, as demonstrated by deleting a file
       under .reiserfs_priv/xattrs/.
    
       CVE-2009-4537: drivers/net/r8169.c in the r8169 driver in the Linux
       kernel did not properly check the size of an Ethernet frame that
       exceeds the MTU, which allowed 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.
    
    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 11.2:
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-debug-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-debug-base-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-debug-devel-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-default-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-default-base-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-default-devel-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-desktop-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-desktop-base-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-desktop-devel-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-pae-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-pae-base-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-pae-devel-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-syms-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-trace-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-trace-base-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-trace-devel-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-vanilla-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-vanilla-base-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-vanilla-devel-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-xen-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-xen-base-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/kernel-xen-devel-2.6.31.14-0.1.1.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/preload-kmp-default-1.1_2.6.31.14_0.1-6.9.26.i586.rpm
       http://download.opensuse.org/update/11.2/rpm/i586/preload-kmp-desktop-1.1_2.6.31.14_0.1-6.9.26.i586.rpm
    
       Platform Independent:
    
       openSUSE 11.2:
       http://download.opensuse.org/update/11.2/rpm/noarch/kernel-source-2.6.31.14-0.1.1.noarch.rpm
       http://download.opensuse.org/update/11.2/rpm/noarch/kernel-source-vanilla-2.6.31.14-0.1.1.noarch.rpm
    
       x86-64 Platform:
    
       openSUSE 11.2:
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-debug-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-debug-base-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-debug-devel-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-default-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-default-base-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-default-devel-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-desktop-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-desktop-base-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-desktop-devel-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-syms-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-trace-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-trace-base-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-trace-devel-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-vanilla-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-vanilla-base-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-vanilla-devel-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-xen-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-xen-base-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/kernel-xen-devel-2.6.31.14-0.1.1.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/preload-kmp-default-1.1_2.6.31.14_0.1-6.9.26.x86_64.rpm
       http://download.opensuse.org/update/11.2/rpm/x86_64/preload-kmp-desktop-1.1_2.6.31.14_0.1-6.9.26.x86_64.rpm
    
       Sources:
    
       openSUSE 11.2:
       http://download.opensuse.org/update/11.2/rpm/src/kernel-debug-2.6.31.14-0.1.1.nosrc.rpm
       http://download.opensuse.org/update/11.2/rpm/src/kernel-default-2.6.31.14-0.1.1.nosrc.rpm
       http://download.opensuse.org/update/11.2/rpm/src/kernel-desktop-2.6.31.14-0.1.1.nosrc.rpm
       http://download.opensuse.org/update/11.2/rpm/src/kernel-pae-2.6.31.14-0.1.1.nosrc.rpm
       http://download.opensuse.org/update/11.2/rpm/src/kernel-source-2.6.31.14-0.1.1.src.rpm
       http://download.opensuse.org/update/11.2/rpm/src/kernel-syms-2.6.31.14-0.1.1.src.rpm
       http://download.opensuse.org/update/11.2/rpm/src/kernel-trace-2.6.31.14-0.1.1.nosrc.rpm
       http://download.opensuse.org/update/11.2/rpm/src/kernel-vanilla-2.6.31.14-0.1.1.nosrc.rpm
       http://download.opensuse.org/update/11.2/rpm/src/kernel-xen-2.6.31.14-0.1.1.nosrc.rpm
    
    ______________________________________________________________________________
    
    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 This email address is being protected from spambots. You need JavaScript enabled to view it. 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:
    
        This email address is being protected from spambots. You need JavaScript enabled to view it.
            -   General Linux and SUSE security discussion.
                All SUSE security announcements are sent to this list.
                To subscribe, send an e-mail to
                    .
    
        This email address is being protected from spambots. You need JavaScript enabled to view it.
            -   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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