ESB-2017.2807 - [SUSE] kernel: Multiple vulnerabilities 2017-11-03

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.2807
        SUSE Security Update: Security update for the Linux Kernel
                              3 November 2017

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           kernel
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Root Compromise                -- Existing Account            
                   Access Privileged Data         -- Remote/Unauthenticated      
                   Modify Arbitrary Files         -- Existing Account            
                   Denial of Service              -- Existing Account            
                   Provide Misleading Information -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-1000380 CVE-2017-1000365 CVE-2017-1000363
                   CVE-2017-15649 CVE-2017-15274 CVE-2017-15265
                   CVE-2017-14140 CVE-2017-14106 CVE-2017-14051
                   CVE-2017-13080 CVE-2017-12762 CVE-2017-12192
                   CVE-2017-12154 CVE-2017-12153 CVE-2017-11176
                   CVE-2017-10661 CVE-2017-9242 CVE-2017-9077
                   CVE-2017-9076 CVE-2017-9075 CVE-2017-9074
                   CVE-2017-8925 CVE-2017-8924 CVE-2017-8890
                   CVE-2017-8831 CVE-2017-8106 CVE-2017-7889
                   CVE-2017-7542 CVE-2017-7541 CVE-2017-7518
                   CVE-2017-7487 CVE-2017-7482 CVE-2017-6951
                   CVE-2017-6346 CVE-2017-2647 CVE-2016-10277
                   CVE-2016-10229 CVE-2016-9604 CVE-2015-9004

Reference:         ASB-2017.0156
                   ASB-2017.0141
                   ESB-2017.2751
                   ESB-2017.2729
                   ESB-2017.2657.2
                   ESB-2017.2552
                   ESB-2017.2516

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2017/suse-su-20172920-1/

- --------------------------BEGIN INCLUDED TEXT--------------------

   SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    SUSE-SU-2017:2920-1
Rating:             important
References:         #1008353 #1012422 #1017941 #1029850 #1030593 
                    #1032268 #1034405 #1034670 #1035576 #1035877 
                    #1036752 #1037182 #1037183 #1037306 #1037994 
                    #1038544 #1038879 #1038981 #1038982 #1039348 
                    #1039349 #1039354 #1039456 #1039721 #1039882 
                    #1039883 #1039885 #1040069 #1041431 #1041958 
                    #1044125 #1045327 #1045487 #1045922 #1046107 
                    #1047408 #1048275 #1049645 #1049882 #1052593 
                    #1053148 #1053152 #1056588 #1056982 #1057179 
                    #1058038 #1058410 #1058507 #1058524 #1062520 
                    #1063667 #1064388 #938162 #975596 #977417 
                    #984779 #985562 #990682 
Cross-References:   CVE-2015-9004 CVE-2016-10229 CVE-2016-9604
                    CVE-2017-1000363 CVE-2017-1000365 CVE-2017-1000380
                    CVE-2017-10661 CVE-2017-11176 CVE-2017-12153
                    CVE-2017-12154 CVE-2017-12762 CVE-2017-13080
                    CVE-2017-14051 CVE-2017-14106 CVE-2017-14140
                    CVE-2017-15265 CVE-2017-15274 CVE-2017-15649
                    CVE-2017-2647 CVE-2017-6951 CVE-2017-7482
                    CVE-2017-7487 CVE-2017-7518 CVE-2017-7541
                    CVE-2017-7542 CVE-2017-7889 CVE-2017-8106
                    CVE-2017-8831 CVE-2017-8890 CVE-2017-8924
                    CVE-2017-8925 CVE-2017-9074 CVE-2017-9075
                    CVE-2017-9076 CVE-2017-9077 CVE-2017-9242
                   
Affected Products:
                    SUSE Linux Enterprise Server 12-LTSS
                    SUSE Linux Enterprise Module for Public Cloud 12
______________________________________________________________________________

   An update that solves 36 vulnerabilities and has 22 fixes
   is now available.

Description:



   The SUSE Linux Enterprise 12 GA LTS kernel was updated to receive various
   security and bugfixes.

   The following security bugs were fixed:

   - CVE-2017-15649: net/packet/af_packet.c in the Linux kernel allowed local
     users to gain privileges via crafted system calls that trigger
     mishandling of packet_fanout data structures, because of a race
     condition (involving fanout_add and packet_do_bind) that leads to a
     use-after-free, a different vulnerability than CVE-2017-6346
     (bnc#1064388).
   - CVE-2015-9004: kernel/events/core.c in the Linux kernel mishandled
     counter grouping, which allowed local users to gain privileges via a
     crafted application, related to the perf_pmu_register and
     perf_event_open functions (bnc#1037306).
   - CVE-2016-10229: udp.c in the Linux kernel allowed remote attackers to
     execute arbitrary code via UDP traffic that triggers an unsafe second
     checksum calculation during execution of a recv system call with the
     MSG_PEEK flag (bnc#1032268).
   - CVE-2016-9604: The handling of keyrings starting with '.' in
     KEYCTL_JOIN_SESSION_KEYRING, which could have allowed local users to
     manipulate privileged keyrings, was fixed (bsc#1035576)
   - CVE-2017-1000363: Linux drivers/char/lp.c Out-of-Bounds Write. Due to a
     missing bounds check, and the fact that parport_ptr integer is static, a
     'secure boot' kernel command line adversary (can happen due to
     bootloader vulns, e.g. Google Nexus 6's CVE-2016-10277, where due to a
     vulnerability the adversary has partial control over the command line)
     can overflow the parport_nr array in the following code, by appending
     many (>LP_NO) 'lp=none' arguments to the command line (bnc#1039456).
   - CVE-2017-1000365: The Linux Kernel imposes a size restriction on the
     arguments and environmental strings passed through
     RLIMIT_STACK/RLIM_INFINITY (1/4 of the size), but did not take the
     argument and environment pointers into account, which allowed attackers
     to bypass this limitation. (bnc#1039354).
   - CVE-2017-1000380: sound/core/timer.c in the Linux kernel is vulnerable
     to a data race in the ALSA /dev/snd/timer driver resulting in local
     users being able to read information belonging to other users, i.e.,
     uninitialized memory contents may be disclosed when a read and an ioctl
     happen at the same time (bnc#1044125).
   - CVE-2017-10661: Race condition in fs/timerfd.c in the Linux kernel
     allowed local users to gain privileges or cause a denial of service
     (list corruption or use-after-free) via simultaneous file-descriptor
     operations that leverage improper might_cancel queueing (bnc#1053152).
   - CVE-2017-11176: The mq_notify function in the Linux kernel did not set
     the sock pointer to NULL upon entry into the retry logic. During a
     user-space close of a Netlink socket, it allowed attackers to cause a
     denial of service (use-after-free) or possibly have unspecified other
     impact (bnc#1048275).
   - CVE-2017-12153: A security flaw was discovered in the
     nl80211_set_rekey_data() function in net/wireless/nl80211.c in the Linux
     kernel This function did not check whether the required attributes are
     present in a Netlink request. This request can be issued by a user with
     the CAP_NET_ADMIN capability and may result in a NULL pointer
     dereference and system crash (bnc#1058410).
   - CVE-2017-12154: The prepare_vmcs02 function in arch/x86/kvm/vmx.c in the
     Linux kernel did not ensure that the "CR8-load exiting" and "CR8-store
     exiting" L0 vmcs02 controls exist in cases where L1 omits the "use TPR
     shadow" vmcs12 control, which allowed KVM L2 guest OS users to obtain
     read and write access to the hardware CR8 register (bnc#1058507).
   - CVE-2017-12762: In /drivers/isdn/i4l/isdn_net.c: A user-controlled
     buffer is copied into a local buffer of constant size using strcpy
     without a length check which can cause a buffer overflow. (bnc#1053148).
   - CVE-2017-13080: Wi-Fi Protected Access (WPA and WPA2) allowed
     reinstallation of the Group Temporal Key (GTK) during the group key
     handshake, allowing an attacker within radio range to replay frames from
     access points to clients (bnc#1063667).
   - CVE-2017-14051: An integer overflow in the
     qla2x00_sysfs_write_optrom_ctl function in
     drivers/scsi/qla2xxx/qla_attr.c in the Linux kernel allowed local users
     to cause a denial of service (memory corruption and system crash) by
     leveraging root access (bnc#1056588).
   - CVE-2017-14106: The tcp_disconnect function in net/ipv4/tcp.c in the
     Linux kernel allowed local users to cause a denial of service
     (__tcp_select_window divide-by-zero error and system crash) by
     triggering a disconnect within a certain tcp_recvmsg code path
     (bnc#1056982).
   - CVE-2017-14140: The move_pages system call in mm/migrate.c in the Linux
     kernel doesn't check the effective uid of the target process, enabling a
     local attacker to learn the memory layout of a setuid executable despite
     ASLR (bnc#1057179).
   - CVE-2017-15265: Use-after-free vulnerability in the Linux kernel allowed
     local users to have unspecified impact via vectors related to
     /dev/snd/seq (bnc#1062520).
   - CVE-2017-15274: security/keys/keyctl.c in the Linux kernel did not
     consider the case of a NULL payload in conjunction with a nonzero length
     value, which allowed local users to cause a denial of service (NULL
     pointer dereference and OOPS) via a crafted add_key or keyctl system
     call, a different vulnerability than CVE-2017-12192 (bnc#1045327).
   - CVE-2017-2647: The KEYS subsystem in the Linux kernel allowed local
     users to gain privileges or cause a denial of service (NULL pointer
     dereference and system crash) via vectors involving a NULL value for a
     certain match field, related to the keyring_search_iterator function in
     keyring.c (bnc#1030593).
   - CVE-2017-6951: The keyring_search_aux function in
     security/keys/keyring.c in the Linux kernel allowed local users to cause
     a denial of service (NULL pointer dereference and OOPS) via a
     request_key system call for the "dead" type (bnc#1029850).
   - CVE-2017-7482: A potential memory corruption was fixed in decoding of
     krb5 principals in the kernels kerberos handling. (bnc#1046107).
   - CVE-2017-7487: The ipxitf_ioctl function in net/ipx/af_ipx.c in the
     Linux kernel mishandled reference counts, which allowed local users to
     cause a denial of service (use-after-free) or possibly have unspecified
     other impact via a failed SIOCGIFADDR ioctl call for an IPX interface
     (bnc#1038879).
   - CVE-2017-7518: The Linux kernel was vulnerable to an incorrect debug
     exception(#DB) error. It could occur while emulating a syscall
     instruction and potentially lead to guest privilege escalation.
     (bsc#1045922).
   - CVE-2017-7541: The brcmf_cfg80211_mgmt_tx function in
     drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux
     kernel allowed local users to cause a denial of service (buffer overflow
     and system crash) or possibly gain privileges via a crafted
     NL80211_CMD_FRAME Netlink packet (bnc#1049645).
   - CVE-2017-7542: The ip6_find_1stfragopt function in
     net/ipv6/output_core.c in the Linux kernel allowed local users to cause
     a denial of service (integer overflow and infinite loop) by leveraging
     the ability to open a raw socket (bnc#1049882).
   - CVE-2017-7889: The mm subsystem in the Linux kernel did not properly
     enforce the CONFIG_STRICT_DEVMEM protection mechanism, which allowed
     local users to read or write to kernel memory locations in the first
     megabyte (and bypass slab-allocation access restrictions) via an
     application that opens the /dev/mem file, related to arch/x86/mm/init.c
     and drivers/char/mem.c (bnc#1034405).
   - CVE-2017-8106: The handle_invept function in arch/x86/kvm/vmx.c in the
     Linux kernel 3.12 allowed privileged KVM guest OS users to cause a
     denial of service (NULL pointer dereference and host OS crash) via a
     single-context INVEPT instruction with a NULL EPT pointer (bnc#1035877).
   - CVE-2017-8831: The saa7164_bus_get function in
     drivers/media/pci/saa7164/saa7164-bus.c in the Linux kernel allowed
     local users to cause a denial of service (out-of-bounds array access) or
     possibly have unspecified other impact by changing a certain
     sequence-number value, aka a "double fetch" vulnerability (bnc#1037994).
   - CVE-2017-8890: The inet_csk_clone_lock function in
     net/ipv4/inet_connection_sock.c in the Linux kernel allowed attackers to
     cause a denial of service (double free) or possibly have unspecified
     other impact by leveraging use of the accept system call (bnc#1038544).
   - CVE-2017-8924: The edge_bulk_in_callback function in
     drivers/usb/serial/io_ti.c in the Linux kernel allowed local users to
     obtain sensitive information (in the dmesg ringbuffer and syslog) from
     uninitialized kernel memory by using a crafted USB device (posing as an
     io_ti USB serial device) to trigger an integer underflow (bnc#1037182
     bsc#1038982).
   - CVE-2017-8925: The omninet_open function in drivers/usb/serial/omninet.c
     in the Linux kernel allowed local users to cause a denial of service
     (tty exhaustion) by leveraging reference count mishandling (bnc#1037183
     bsc#1038981).
   - CVE-2017-9074: The IPv6 fragmentation implementation in the Linux kernel
     did not consider that the nexthdr field may be associated with an
     invalid option, which allowed local users to cause a denial of service
     (out-of-bounds read and BUG) or possibly have unspecified other impact
     via crafted socket and send system calls (bnc#1039882).
   - CVE-2017-9075: The sctp_v6_create_accept_sk function in net/sctp/ipv6.c
     in the Linux kernel mishandled inheritance, which allowed local users to
     cause a denial of service or possibly have unspecified other impact via
     crafted system calls, a related issue to CVE-2017-8890 (bnc#1039883).
   - CVE-2017-9076: The dccp_v6_request_recv_sock function in net/dccp/ipv6.c
     in the Linux kernel mishandled inheritance, which allowed local users to
     cause a denial of service or possibly have unspecified other impact via
     crafted system calls, a related issue to CVE-2017-8890 (bnc#1039885).
   - CVE-2017-9077: The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c
     in the Linux kernel mishandled inheritance, which allowed local users to
     cause a denial of service or possibly have unspecified other impact via
     crafted system calls, a related issue to CVE-2017-8890 (bnc#1040069).
   - CVE-2017-9242: The __ip6_append_data function in net/ipv6/ip6_output.c
     in the Linux kernel is too late in checking whether an overwrite of an
     skb data structure may occur, which allowed local users to cause a
     denial of service (system crash) via crafted system calls (bnc#1041431).

   The following non-security bugs were fixed:

   - btrfs: Fix a data space underflow warning (bsc#985562, bsc#975596,
     bsc#984779, bsc#1008353, bsc#1017941).
   - dm-mpath: always return reservation conflict. bsc#938162
   - getcwd: Close race with d_move called by lustre (bsc#1052593).
   - ipv4: Should use consistent conditional judgement for ip fragment in
     __ip_append_data and ip_finish_output (bsc#1041958).
   - ipv6: Should use consistent conditional judgement for ip6 fragment
     between __ip6_append_data and ip6_finish_output (bsc#1041958).
   - kabi: avoid bogus kabi errors in ip_output.c (bsc#1041958).
   - keys: Disallow keyrings beginning with '.' to be joined as session
     keyrings (bnc#1035576).
   - mm/mmap.c: do not blow on PROT_NONE MAP_FIXED holes in the stack
     (bnc#1039348).
   - net: account for current skb length when deciding about UFO
     (bsc#1041958).
   - nfsd4: minor NFSv2/v3 write decoding cleanup (bsc#1034670 CVE#2017-7645).
   - nfsd: check for oversized NFSv2/v3 arguments (bsc#1034670 CVE#2017-7645).
   - nfsd: stricter decoding of write-like NFSv2/v3 ops (bsc#1034670
     CVE#2017-7645).
   - printk: prevent userland from spoofing kernel messages (bsc#1039721).
   - reiserfs: do not preallocate blocks for extended attributes (bsc#990682).
   - tcp: do not inherit fastopen_req from parent (bsc#1038544).
   - udp: disallow UFO for sockets with SO_NO_CHECK option (bsc#1041958).
   - usb: wusbcore: fix NULL-deref at probe (bsc#1045487).
   - vsock: Detach QP check should filter out non matching QPs (bsc#1036752
     bsc#1047408).
   - vsock: Fix lockdep issue (bsc#977417 bsc#1047408).
   - vsock: sock_put wasn't safe to call in interrupt context (bsc#977417
     bsc#1047408).
   - xfs: XFS_IS_REALTIME_INODE() should be false if no rt device present
     (bsc#1058524).


Patch Instructions:

   To install this SUSE Security Update use YaST online_update.
   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Server 12-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-2017-1808=1

   - SUSE Linux Enterprise Module for Public Cloud 12:

      zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2017-1808=1

   To bring your system up-to-date, use "zypper patch".


Package List:

   - SUSE Linux Enterprise Server 12-LTSS (ppc64le s390x x86_64):

      kernel-default-3.12.61-52.101.1
      kernel-default-base-3.12.61-52.101.1
      kernel-default-base-debuginfo-3.12.61-52.101.1
      kernel-default-debuginfo-3.12.61-52.101.1
      kernel-default-debugsource-3.12.61-52.101.1
      kernel-default-devel-3.12.61-52.101.1
      kernel-syms-3.12.61-52.101.1

   - SUSE Linux Enterprise Server 12-LTSS (x86_64):

      kernel-xen-3.12.61-52.101.1
      kernel-xen-base-3.12.61-52.101.1
      kernel-xen-base-debuginfo-3.12.61-52.101.1
      kernel-xen-debuginfo-3.12.61-52.101.1
      kernel-xen-debugsource-3.12.61-52.101.1
      kernel-xen-devel-3.12.61-52.101.1
      kgraft-patch-3_12_61-52_101-default-1-8.1
      kgraft-patch-3_12_61-52_101-xen-1-8.1

   - SUSE Linux Enterprise Server 12-LTSS (noarch):

      kernel-devel-3.12.61-52.101.1
      kernel-macros-3.12.61-52.101.1
      kernel-source-3.12.61-52.101.1

   - SUSE Linux Enterprise Server 12-LTSS (s390x):

      kernel-default-man-3.12.61-52.101.1

   - SUSE Linux Enterprise Module for Public Cloud 12 (x86_64):

      kernel-ec2-3.12.61-52.101.1
      kernel-ec2-debuginfo-3.12.61-52.101.1
      kernel-ec2-debugsource-3.12.61-52.101.1
      kernel-ec2-devel-3.12.61-52.101.1
      kernel-ec2-extra-3.12.61-52.101.1
      kernel-ec2-extra-debuginfo-3.12.61-52.101.1


References:

   https://www.suse.com/security/cve/CVE-2015-9004.html
   https://www.suse.com/security/cve/CVE-2016-10229.html
   https://www.suse.com/security/cve/CVE-2016-9604.html
   https://www.suse.com/security/cve/CVE-2017-1000363.html
   https://www.suse.com/security/cve/CVE-2017-1000365.html
   https://www.suse.com/security/cve/CVE-2017-1000380.html
   https://www.suse.com/security/cve/CVE-2017-10661.html
   https://www.suse.com/security/cve/CVE-2017-11176.html
   https://www.suse.com/security/cve/CVE-2017-12153.html
   https://www.suse.com/security/cve/CVE-2017-12154.html
   https://www.suse.com/security/cve/CVE-2017-12762.html
   https://www.suse.com/security/cve/CVE-2017-13080.html
   https://www.suse.com/security/cve/CVE-2017-14051.html
   https://www.suse.com/security/cve/CVE-2017-14106.html
   https://www.suse.com/security/cve/CVE-2017-14140.html
   https://www.suse.com/security/cve/CVE-2017-15265.html
   https://www.suse.com/security/cve/CVE-2017-15274.html
   https://www.suse.com/security/cve/CVE-2017-15649.html
   https://www.suse.com/security/cve/CVE-2017-2647.html
   https://www.suse.com/security/cve/CVE-2017-6951.html
   https://www.suse.com/security/cve/CVE-2017-7482.html
   https://www.suse.com/security/cve/CVE-2017-7487.html
   https://www.suse.com/security/cve/CVE-2017-7518.html
   https://www.suse.com/security/cve/CVE-2017-7541.html
   https://www.suse.com/security/cve/CVE-2017-7542.html
   https://www.suse.com/security/cve/CVE-2017-7889.html
   https://www.suse.com/security/cve/CVE-2017-8106.html
   https://www.suse.com/security/cve/CVE-2017-8831.html
   https://www.suse.com/security/cve/CVE-2017-8890.html
   https://www.suse.com/security/cve/CVE-2017-8924.html
   https://www.suse.com/security/cve/CVE-2017-8925.html
   https://www.suse.com/security/cve/CVE-2017-9074.html
   https://www.suse.com/security/cve/CVE-2017-9075.html
   https://www.suse.com/security/cve/CVE-2017-9076.html
   https://www.suse.com/security/cve/CVE-2017-9077.html
   https://www.suse.com/security/cve/CVE-2017-9242.html
   https://bugzilla.suse.com/1008353
   https://bugzilla.suse.com/1012422
   https://bugzilla.suse.com/1017941
   https://bugzilla.suse.com/1029850
   https://bugzilla.suse.com/1030593
   https://bugzilla.suse.com/1032268
   https://bugzilla.suse.com/1034405
   https://bugzilla.suse.com/1034670
   https://bugzilla.suse.com/1035576
   https://bugzilla.suse.com/1035877
   https://bugzilla.suse.com/1036752
   https://bugzilla.suse.com/1037182
   https://bugzilla.suse.com/1037183
   https://bugzilla.suse.com/1037306
   https://bugzilla.suse.com/1037994
   https://bugzilla.suse.com/1038544
   https://bugzilla.suse.com/1038879
   https://bugzilla.suse.com/1038981
   https://bugzilla.suse.com/1038982
   https://bugzilla.suse.com/1039348
   https://bugzilla.suse.com/1039349
   https://bugzilla.suse.com/1039354
   https://bugzilla.suse.com/1039456
   https://bugzilla.suse.com/1039721
   https://bugzilla.suse.com/1039882
   https://bugzilla.suse.com/1039883
   https://bugzilla.suse.com/1039885
   https://bugzilla.suse.com/1040069
   https://bugzilla.suse.com/1041431
   https://bugzilla.suse.com/1041958
   https://bugzilla.suse.com/1044125
   https://bugzilla.suse.com/1045327
   https://bugzilla.suse.com/1045487
   https://bugzilla.suse.com/1045922
   https://bugzilla.suse.com/1046107
   https://bugzilla.suse.com/1047408
   https://bugzilla.suse.com/1048275
   https://bugzilla.suse.com/1049645
   https://bugzilla.suse.com/1049882
   https://bugzilla.suse.com/1052593
   https://bugzilla.suse.com/1053148
   https://bugzilla.suse.com/1053152
   https://bugzilla.suse.com/1056588
   https://bugzilla.suse.com/1056982
   https://bugzilla.suse.com/1057179
   https://bugzilla.suse.com/1058038
   https://bugzilla.suse.com/1058410
   https://bugzilla.suse.com/1058507
   https://bugzilla.suse.com/1058524
   https://bugzilla.suse.com/1062520
   https://bugzilla.suse.com/1063667
   https://bugzilla.suse.com/1064388
   https://bugzilla.suse.com/938162
   https://bugzilla.suse.com/975596
   https://bugzilla.suse.com/977417
   https://bugzilla.suse.com/984779
   https://bugzilla.suse.com/985562
   https://bugzilla.suse.com/990682

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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
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