Security update for the Linux Kernel

SUSE Security Update: Security update for the Linux Kernel
Announcement ID: SUSE-SU-2017:1247-1
Rating: important
References: #1003077 #1015703 #1021256 #1021762 #1023377 #1023762 #1023992 #1024938 #1025235 #1026024 #1026722 #1026914 #1027066 #1027149 #1027178 #1027189 #1027190 #1028415 #1028895 #1029986 #1030118 #1030213 #1030901 #1031003 #1031052 #1031440 #1031579 #1032344 #1033336 #914939 #954763 #968697 #979215 #983212 #989056
Affected Products:
  • SUSE Linux Enterprise Server for SAP 12
  • SUSE Linux Enterprise Server 12-LTSS
  • SUSE Linux Enterprise Module for Public Cloud 12
    		•

    An update that solves 25 vulnerabilities and has 10 fixes is now available.

    Description:



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

    The following security bugs were fixed:

    - CVE-2015-1350: The VFS subsystem in the Linux kernel provided an
    incomplete set of requirements for setattr operations that
    underspecifies removing extended privilege attributes, which allowed
    local users to cause a denial of service (capability stripping) via a
    failed invocation of a system call, as demonstrated by using chown to
    remove a capability from the ping or Wireshark dumpcap program
    (bnc#914939).
    - CVE-2016-2117: The atl2_probe function in
    drivers/net/ethernet/atheros/atlx/atl2.c in the Linux kernel incorrectly
    enabled scatter/gather I/O, which allowed remote attackers to obtain
    sensitive information from kernel memory by reading packet data
    (bnc#968697).
    - CVE-2016-3070: The trace_writeback_dirty_page implementation in
    include/trace/events/writeback.h in the Linux kernel improperly
    interacted with mm/migrate.c, which allowed local users to cause a
    denial of service (NULL pointer dereference and system crash) or
    possibly have unspecified other impact by triggering a certain page move
    (bnc#979215).
    - CVE-2016-5243: The tipc_nl_compat_link_dump function in
    net/tipc/netlink_compat.c in the Linux kernel did not properly copy a
    certain string, which allowed local users to obtain sensitive
    information from kernel stack memory by reading a Netlink message
    (bnc#983212).
    - CVE-2016-7117: Use-after-free vulnerability in the __sys_recvmmsg
    function in net/socket.c in the Linux kernel allowed remote attackers to
    execute arbitrary code via vectors involving a recvmmsg system call that
    is mishandled during error processing (bnc#1003077).
    - CVE-2016-9588: arch/x86/kvm/vmx.c in the Linux kernel mismanages the #BP
    and #OF exceptions, which allowed guest OS users to cause a denial of
    service (guest OS crash) by declining to handle an exception thrown by
    an L2 guest (bnc#1015703).
    - CVE-2016-10044: The aio_mount function in fs/aio.c in the Linux kernel
    did not properly restrict execute access, which made it easier for local
    users to bypass intended SELinux W^X policy restrictions, and
    consequently gain privileges, via an io_setup system call (bnc#1023992).
    - CVE-2016-10200: Race condition in the L2TPv3 IP Encapsulation feature in
    the Linux kernel allowed local users to gain privileges or cause a
    denial of service (use-after-free) by making multiple bind system calls
    without properly ascertaining whether a socket has the SOCK_ZAPPED
    status, related to net/l2tp/l2tp_ip.c and net/l2tp/l2tp_ip6.c
    (bnc#1028415).
    - CVE-2016-10208: The ext4_fill_super function in fs/ext4/super.c in the
    Linux kernel did not properly validate meta block groups, which allowed
    physically proximate attackers to cause a denial of service
    (out-of-bounds read and system crash) via a crafted ext4 image
    (bnc#1023377).
    - CVE-2017-2671: The ping_unhash function in net/ipv4/ping.c in the Linux
    kernel is too late in obtaining a certain lock and consequently cannot
    ensure that disconnect function calls are safe, which allowed local
    users to cause a denial of service (panic) by leveraging access to the
    protocol value of IPPROTO_ICMP in a socket system call (bnc#1031003).
    - CVE-2017-5669: The do_shmat function in ipc/shm.c in the Linux kernel
    did not restrict the address calculated by a certain rounding operation,
    which allowed local users to map page zero, and consequently bypass a
    protection mechanism that exists for the mmap system call, by making
    crafted shmget and shmat system calls in a privileged context
    (bnc#1026914).
    - CVE-2017-5897: The ip6gre_err function in net/ipv6/ip6_gre.c in the
    Linux kernel allowed remote attackers to have unspecified impact via
    vectors involving GRE flags in an IPv6 packet, which trigger an
    out-of-bounds access (bnc#1023762).
    - CVE-2017-5970: The ipv4_pktinfo_prepare function in
    net/ipv4/ip_sockglue.c in the Linux kernel allowed attackers to cause a
    denial of service (system crash) via (1) an application that made
    crafted system calls or possibly (2) IPv4 traffic with invalid IP
    options (bnc#1024938).
    - CVE-2017-5986: Race condition in the sctp_wait_for_sndbuf function in
    net/sctp/socket.c in the Linux kernel allowed local users to cause a
    denial of service (assertion failure and panic) via a multithreaded
    application that peels off an association in a certain buffer-full state
    (bnc#1025235).
    - CVE-2017-6074: The dccp_rcv_state_process function in net/dccp/input.c
    in the Linux kernel mishandled DCCP_PKT_REQUEST packet data structures
    in the LISTEN state, which allowed local users to obtain root privileges
    or cause a denial of service (double free) via an application that made
    an IPV6_RECVPKTINFO setsockopt system call (bnc#1026024).
    - CVE-2017-6214: The tcp_splice_read function in net/ipv4/tcp.c in the
    Linux kernel allowed remote attackers to cause a denial of service
    (infinite loop and soft lockup) via vectors involving a TCP packet with
    the URG flag (bnc#1026722).
    - CVE-2017-6345: The LLC subsystem in the Linux kernel did not ensure that
    a certain destructor exists in required circumstances, which allowed
    local users to cause a denial of service (BUG_ON) or possibly have
    unspecified other impact via crafted system calls (bnc#1027190).
    - CVE-2017-6346: Race condition in net/packet/af_packet.c in the Linux
    kernel allowed local users to cause a denial of service (use-after-free)
    or possibly have unspecified other impact via a multithreaded
    application that made PACKET_FANOUT setsockopt system calls
    (bnc#1027189).
    - CVE-2017-6348: The hashbin_delete function in net/irda/irqueue.c in the
    Linux kernel improperly managed lock dropping, which allowed local users
    to cause a denial of service (deadlock) via crafted operations on IrDA
    devices (bnc#1027178).
    - CVE-2017-6353: net/sctp/socket.c in the Linux kernel did not properly
    restrict association peel-off operations during certain wait states,
    which allowed local users to cause a denial of service (invalid unlock
    and double free) via a multithreaded application. NOTE: this
    vulnerability exists because of an incorrect fix for CVE-2017-5986
    (bnc#1027066).
    - CVE-2017-7187: The sg_ioctl function in drivers/scsi/sg.c in the Linux
    kernel allowed local users to cause a denial of service (stack-based
    buffer overflow) or possibly have unspecified other impact via a large
    command size in an SG_NEXT_CMD_LEN ioctl call, leading to out-of-bounds
    write access in the sg_write function (bnc#1030213).
    - CVE-2017-7261: The vmw_surface_define_ioctl function in
    drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel did not
    check for a zero value of certain levels data, which allowed local users
    to cause a denial of service (ZERO_SIZE_PTR dereference, and GPF and
    possibly panic) via a crafted ioctl call for a /dev/dri/renderD* device
    (bnc#1031052).
    - CVE-2017-7294: The vmw_surface_define_ioctl function in
    drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel did not
    validate addition of certain levels data, which allowed local users to
    trigger an integer overflow and out-of-bounds write, and cause a denial
    of service (system hang or crash) or possibly gain privileges, via a
    crafted ioctl call for a /dev/dri/renderD* device (bnc#1031440).
    - CVE-2017-7308: The packet_set_ring function in net/packet/af_packet.c in
    the Linux kernel did not properly validate certain block-size data,
    which allowed local users to cause a denial of service (overflow) or
    possibly have unspecified other impact via crafted system calls
    (bnc#1031579).
    - CVE-2017-7616: Incorrect error handling in the set_mempolicy and mbind
    compat syscalls in mm/mempolicy.c in the Linux kernel allowed local
    users to obtain sensitive information from uninitialized stack data by
    triggering failure of a certain bitmap operation (bnc#1033336).

    The following non-security bugs were fixed:

    - ext4: fix fencepost in s_first_meta_bg validation (bsc#1029986).
    - hwrng: virtio - ensure reads happen after successful probe (bsc#954763
    bsc#1032344).
    - kgr/module: make a taint flag module-specific (fate#313296).
    - l2tp: fix address test in __l2tp_ip6_bind_lookup() (bsc#1028415).
    - l2tp: fix lookup for sockets not bound to a device in l2tp_ip
    (bsc#1028415).
    - l2tp: fix racy socket lookup in l2tp_ip and l2tp_ip6 bind()
    (bsc#1028415).
    - l2tp: hold socket before dropping lock in l2tp_ip{, 6}_recv()
    (bsc#1028415).
    - l2tp: hold tunnel socket when handling control frames in l2tp_ip and
    l2tp_ip6 (bsc#1028415).
    - l2tp: lock socket before checking flags in connect() (bsc#1028415).
    - mm/huge_memory.c: respect FOLL_FORCE/FOLL_COW for thp (bnc#1030118).
    - module: move add_taint_module() to a header file (fate#313296).
    - netfilter: bridge: Fix the build when IPV6 is disabled (bsc#1027149).
    - nfs: flush out dirty data on file fput() (bsc#1021762).
    - powerpc: Blacklist GCC 5.4 6.1 and 6.2 (boo#1028895).
    - powerpc: Reject binutils 2.24 when building little endian (boo#1028895).
    - revert "procfs: mark thread stack correctly in proc//maps"
    (bnc#1030901).
    - taint/module: Clean up global and module taint flags handling
    (fate#313296).
    - usb: serial: kl5kusb105: fix line-state error handling (bsc#1021256).
    - xfs_dmapi: fix the debug compilation of xfs_dmapi (bsc#989056).
    - xfs: fix buffer overflow dm_get_dirattrs/dm_get_dirattrs2 (bsc#989056).

    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 for SAP 12:
      zypper in -t patch SUSE-SLE-SAP-12-2017-749=1
    • SUSE Linux Enterprise Server 12-LTSS:
      zypper in -t patch SUSE-SLE-SERVER-12-2017-749=1
    • SUSE Linux Enterprise Module for Public Cloud 12:
      zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2017-749=1

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

    Package List:

    • SUSE Linux Enterprise Server for SAP 12 (x86_64):
      • kernel-default-3.12.61-52.72.1
      • kernel-default-base-3.12.61-52.72.1
      • kernel-default-base-debuginfo-3.12.61-52.72.1
      • kernel-default-debuginfo-3.12.61-52.72.1
      • kernel-default-debugsource-3.12.61-52.72.1
      • kernel-default-devel-3.12.61-52.72.1
      • kernel-syms-3.12.61-52.72.1
      • kernel-xen-3.12.61-52.72.1
      • kernel-xen-base-3.12.61-52.72.1
      • kernel-xen-base-debuginfo-3.12.61-52.72.1
      • kernel-xen-debuginfo-3.12.61-52.72.1
      • kernel-xen-debugsource-3.12.61-52.72.1
      • kernel-xen-devel-3.12.61-52.72.1
      • kgraft-patch-3_12_61-52_72-default-1-2.1
      • kgraft-patch-3_12_61-52_72-xen-1-2.1
    • SUSE Linux Enterprise Server for SAP 12 (noarch):
      • kernel-devel-3.12.61-52.72.1
      • kernel-macros-3.12.61-52.72.1
      • kernel-source-3.12.61-52.72.1
    • SUSE Linux Enterprise Server 12-LTSS (ppc64le s390x x86_64):
      • kernel-default-3.12.61-52.72.1
      • kernel-default-base-3.12.61-52.72.1
      • kernel-default-base-debuginfo-3.12.61-52.72.1
      • kernel-default-debuginfo-3.12.61-52.72.1
      • kernel-default-debugsource-3.12.61-52.72.1
      • kernel-default-devel-3.12.61-52.72.1
      • kernel-syms-3.12.61-52.72.1
    • SUSE Linux Enterprise Server 12-LTSS (noarch):
      • kernel-devel-3.12.61-52.72.1
      • kernel-macros-3.12.61-52.72.1
      • kernel-source-3.12.61-52.72.1
    • SUSE Linux Enterprise Server 12-LTSS (x86_64):
      • kernel-xen-3.12.61-52.72.1
      • kernel-xen-base-3.12.61-52.72.1
      • kernel-xen-base-debuginfo-3.12.61-52.72.1
      • kernel-xen-debuginfo-3.12.61-52.72.1
      • kernel-xen-debugsource-3.12.61-52.72.1
      • kernel-xen-devel-3.12.61-52.72.1
      • kgraft-patch-3_12_61-52_72-default-1-2.1
      • kgraft-patch-3_12_61-52_72-xen-1-2.1
    • SUSE Linux Enterprise Server 12-LTSS (s390x):
      • kernel-default-man-3.12.61-52.72.1
    • SUSE Linux Enterprise Module for Public Cloud 12 (x86_64):
      • kernel-ec2-3.12.61-52.72.1
      • kernel-ec2-debuginfo-3.12.61-52.72.1
      • kernel-ec2-debugsource-3.12.61-52.72.1
      • kernel-ec2-devel-3.12.61-52.72.1
      • kernel-ec2-extra-3.12.61-52.72.1
      • kernel-ec2-extra-debuginfo-3.12.61-52.72.1

    References: