SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    SUSE-SU-2019:2950-1
Rating:             important
References:         #1117665 #1123959 #1137586 #1137865 #1137944 
                    #1139073 #1139751 #1142857 #1144903 #1145477 
                    #1145922 #1146042 #1146163 #1146285 #1146361 
                    #1146378 #1146391 #1146413 #1146425 #1146512 
                    #1146514 #1146516 #1146519 #1146524 #1146526 
                    #1146529 #1146540 #1146543 #1146547 #1146584 
                    #1146612 #1147122 #1148938 #1149376 #1149522 
                    #1149527 #1149555 #1150025 #1150112 #1150452 
                    #1150457 #1150465 #1151347 #1151350 #1152782 
                    #1152788 #1153119 #1155671 #999278 
Cross-References:   CVE-2016-10906 CVE-2017-18509 CVE-2017-18551
                    CVE-2017-18595 CVE-2018-12207 CVE-2018-20976
                    CVE-2019-10207 CVE-2019-10220 CVE-2019-11135
                    CVE-2019-11477 CVE-2019-14814 CVE-2019-14815
                    CVE-2019-14816 CVE-2019-14821 CVE-2019-14835
                    CVE-2019-15098 CVE-2019-15118 CVE-2019-15212
                    CVE-2019-15215 CVE-2019-15216 CVE-2019-15217
                    CVE-2019-15218 CVE-2019-15219 CVE-2019-15220
                    CVE-2019-15221 CVE-2019-15290 CVE-2019-15291
                    CVE-2019-15505 CVE-2019-15807 CVE-2019-15902
                    CVE-2019-15926 CVE-2019-15927 CVE-2019-16232
                    CVE-2019-16233 CVE-2019-16234 CVE-2019-16413
                    CVE-2019-17055 CVE-2019-17056 CVE-2019-9456
                    CVE-2019-9506
Affected Products:
                    SUSE Linux Enterprise Server for SAP 12-SP1
                    SUSE Linux Enterprise Server 12-SP1-LTSS
                    SUSE Linux Enterprise Module for Public Cloud 12
______________________________________________________________________________

   An update that solves 40 vulnerabilities and has 9 fixes is
   now available.

Description:



   The SUSE Linux Enterprise 12 SP1 kernel was updated to receive various
   security and bugfixes.


   The following security bugs were fixed:

   - CVE-2018-12207: Untrusted virtual machines on Intel CPUs could exploit a
     race condition in the Instruction Fetch Unit of the Intel CPU to cause a
     Machine Exception during Page Size Change, causing the CPU core to be
     non-functional.

   The Linux Kernel KVM hypervisor was adjusted to avoid page size changes in
   executable pages by splitting / merging huge pages into small pages as
   needed. More information can be found on
   https://www.suse.com/support/kb/

   - CVE-2019-11135: Aborting an asynchronous TSX operation on Intel CPUs
     with Transactional Memory support could be used to facilitate
     sidechannel information leaks out of microarchitectural buffers, similar
     to the previously described "Microarchitectural Data Sampling" attack.

   The Linux kernel was supplemented with the option to disable TSX operation
   altogether (requiring CPU Microcode updates on older systems) and better
   flushing of microarchitectural buffers (VERW).

   The set of options available is described in our TID at
   https://www.suse.com/support/kb/

   - CVE-2019-16233: drivers/scsi/qla2xxx/qla_os.c did not check the
     alloc_workqueue return value, leading to a NULL pointer dereference.
     (bsc#1150457).

   - CVE-2019-10220: Added sanity checks on the pathnames passed to the user
     space. (bsc#1144903).

   - CVE-2019-16232: Fix a potential NULL pointer dereference in the Marwell
     libertas driver (bsc#1150465).

   - CVE-2019-16234: iwlwifi pcie driver did not check the alloc_workqueue
     return value, leading to a NULL pointer dereference. (bsc#1150452).

   - CVE-2019-17055: The AF_ISDN network module in the Linux kernel did not
     enforce CAP_NET_RAW, which meant that unprivileged users could create a
     raw socket (bnc#1152782).

   - CVE-2019-17056: The AF_NFC network module did not enforce CAP_NET_RAW,
     which meant that unprivileged users could create a raw socket
     (bsc#1152788).

   - CVE-2019-16413: The 9p filesystem did not protect i_size_write()
     properly, which caused an i_size_read() infinite loop and denial of
     service on SMP systems (bnc#1151347).

   - CVE-2019-15902: A backporting issue was discovered that re-introduced
     the Spectre vulnerability it had aimed to eliminate. This occurred
     because the backport process depends on cherry picking specific commits,
     and because two (correctly ordered) code lines were swapped
     (bnc#1149376).

   - CVE-2019-15291: Fixed a NULL pointer dereference issue that could be
     caused by a malicious USB device (bnc#11465).

   - CVE-2019-15807: Fixed a memory leak in the SCSI module that could be
     abused to cause denial of service (bnc#1148938).

   - CVE-2019-14821: An out-of-bounds access issue was fixed in the kernel's
     KVM hypervisor. An unprivileged host user or process with access to
     '/dev/kvm' device could use this flaw to crash the host kernel,
     resulting in a denial of service or potentially escalating privileges on
     the system (bnc#1151350).

   - CVE-2019-15505: An out-of-bounds issue had been fixed that could be
     caused by crafted USB device traffic (bnc#1147122).

   - CVE-2017-18595: A double free in allocate_trace_buffer was fixed
     (bnc#1149555).

   - CVE-2019-14835: A buffer overflow flaw was found in the kernel's vhost
     functionality that translates virtqueue buffers to IOVs. A privileged
     guest user able to pass descriptors with invalid length to the host
     could use this flaw to increase their privileges on the host
     (bnc#1150112).

   - CVE-2019-15216: A NULL pointer dereference was fixed that could be
     malicious USB device (bnc#1146361).

   - CVE-2019-9456: An out-of-bounds write in the USB monitor driver has been
     fixed. This issue could lead to local escalation of privilege with
     System execution privileges needed. (bnc#1150025).

   - CVE-2019-15926: An out-of-bounds access was fixed in the
     drivers/net/wireless/ath/ath6kl module. (bnc#1149527).

   - CVE-2019-15927: An out-of-bounds access was fixed in the sound/usb/mixer
     module (bnc#1149522).

   - CVE-2019-15219: A NULL pointer dereference was fixed that could be
     abused by a malicious USB device (bnc#1146524).

   - CVE-2019-15220: A use-after-free issue was fixed that could be caused by
     a malicious USB device (bnc#1146526).

   - CVE-2019-15221: A NULL pointer dereference was fixed that could be
     caused by a malicious USB device (bnc#1146529).

   - CVE-2019-14814: A heap-based buffer overflow was fixed in the marvell
     wifi chip driver. That issue allowed local users to cause a denial of
     service (system crash) or possibly execute arbitrary code (bnc#1146512).

   - CVE-2019-14815: A missing length check while parsing WMM IEs was fixed
     (bsc#1146512, bsc#1146514, bsc#1146516).

   - CVE-2019-14816: A heap-based buffer overflow in the marvell wifi chip
     driver was fixed. Local users would have abused this issue to cause a
     denial of service (system crash) or possibly execute arbitrary code
     (bnc#1146516).

   - CVE-2017-18509: An issue in net/ipv6 as fixed. By setting a specific
     socket
     option, an attacker could control a pointer in kernel land and cause an
      inet_csk_listen_stop general protection fault, or potentially execute
      arbitrary code under certain circumstances. The issue can be triggered
      as root (e.g., inside a default LXC container or with the CAP_NET_ADMIN
      capability) or after namespace unsharing. (bnc#1145477)

   - CVE-2019-9506: The Bluetooth BR/EDR specification used to permit
     sufficiently low encryption key length and did not prevent an attacker
     from influencing the key length negotiation. This allowed practical
     brute-force attacks (aka "KNOB") that could decrypt traffic and inject
     arbitrary ciphertext without the victim noticing (bnc#1137865).

   - CVE-2019-15098: A NULL pointer dereference in drivers/net/wireless/ath
     was fixed (bnc#1146378).

   - CVE-2019-15290: A NULL pointer dereference in
     ath6kl_usb_alloc_urb_from_pipe was fixed (bsc#1146378).

   - CVE-2019-15212: A double-free issue was fixed in drivers/usb driver
     (bnc#1146391).

   - CVE-2016-10906: A use-after-free issue was fixed in
     drivers/net/ethernet/arc (bnc#1146584).

   - CVE-2019-15217: A a NULL pointer dereference issue caused by a malicious
     USB device was fixed in the drivers/media/usb/zr364xx driver
     (bnc#1146519).

   - CVE-2019-15218: A NULL pointer dereference caused by a malicious USB
     device was fixed in the drivers/media/usb/siano driver (bnc#1146413).

   - CVE-2019-15215: A use-after-free issue caused by a malicious USB device
     was fixed in the drivers/media/usb/cpia2 driver (bnc#1146425).

   - CVE-2018-20976: A use-after-free issue was fixed in the fs/xfs driver
     (bnc#1146285).

   - CVE-2017-18551: An out-of-bounds write was fixed in the drivers/i2c
     driver (bnc#1146163).

   - CVE-2019-10207: Add checks for missing tty operations to prevent
     unprivileged user to  execute 0x0 address (bsc#1142857 bsc#1123959)

   - CVE-2019-15118: ALSA: usb-audio: Fix a stack buffer overflow bug in
     check_input_term leading to kernel stack exhaustion (bsc#1145922).

   The following non-security bugs were fixed:

   - array_index_nospec: Sanitize speculative array (bsc#1155671)
   - hpsa: move lockup_detected attribute to host attr (bsc#999278,
     bsc#1153119).
   - ib/core: Add mitigation for Spectre V1 (bsc#1155671)
   - kvm: Convert kvm_lock to a mutex (bsc#1117665).
   - kvm: MMU: drop read-only large sptes when creating lower level sptes
     (bsc#1117665).
   - kvm: vmx, svm: always run with EFER.NXE=1 when shadow paging is active
     (bsc#1117665).
   - kvm: x86: make FNAME(fetch) and __direct_map more similar (bsc#1117665).
   - media: smsusb: better handle optional alignment (bsc#1146413).
   - mwifiex: Fix heap overflow in mwifiex_uap_parse_tail_ies() (bsc#1137944).
   - netfilter: nf_nat: do not bug when mapping already exists (bsc#1146612).
   - tcp: Be more careful in tcp_fragment() (bsc#1137586 bsc#1139751).


Special Instructions and Notes:

   Please reboot the system after installing this update.

Patch Instructions:

   To install this SUSE Security Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Server for SAP 12-SP1:

      zypper in -t patch SUSE-SLE-SAP-12-SP1-2019-2950=1

   - SUSE Linux Enterprise Server 12-SP1-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-SP1-2019-2950=1

   - SUSE Linux Enterprise Module for Public Cloud 12:

      zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2019-2950=1



Package List:

   - SUSE Linux Enterprise Server for SAP 12-SP1 (x86_64):

      kernel-default-3.12.74-60.64.124.1
      kernel-default-base-3.12.74-60.64.124.1
      kernel-default-base-debuginfo-3.12.74-60.64.124.1
      kernel-default-debuginfo-3.12.74-60.64.124.1
      kernel-default-debugsource-3.12.74-60.64.124.1
      kernel-default-devel-3.12.74-60.64.124.1
      kernel-syms-3.12.74-60.64.124.1
      kernel-xen-3.12.74-60.64.124.1
      kernel-xen-base-3.12.74-60.64.124.1
      kernel-xen-base-debuginfo-3.12.74-60.64.124.1
      kernel-xen-debuginfo-3.12.74-60.64.124.1
      kernel-xen-debugsource-3.12.74-60.64.124.1
      kernel-xen-devel-3.12.74-60.64.124.1
      kgraft-patch-3_12_74-60_64_124-default-1-2.3.1
      kgraft-patch-3_12_74-60_64_124-xen-1-2.3.1

   - SUSE Linux Enterprise Server for SAP 12-SP1 (noarch):

      kernel-devel-3.12.74-60.64.124.1
      kernel-macros-3.12.74-60.64.124.1
      kernel-source-3.12.74-60.64.124.1

   - SUSE Linux Enterprise Server 12-SP1-LTSS (ppc64le s390x x86_64):

      kernel-default-3.12.74-60.64.124.1
      kernel-default-base-3.12.74-60.64.124.1
      kernel-default-base-debuginfo-3.12.74-60.64.124.1
      kernel-default-debuginfo-3.12.74-60.64.124.1
      kernel-default-debugsource-3.12.74-60.64.124.1
      kernel-default-devel-3.12.74-60.64.124.1
      kernel-syms-3.12.74-60.64.124.1

   - SUSE Linux Enterprise Server 12-SP1-LTSS (noarch):

      kernel-devel-3.12.74-60.64.124.1
      kernel-macros-3.12.74-60.64.124.1
      kernel-source-3.12.74-60.64.124.1

   - SUSE Linux Enterprise Server 12-SP1-LTSS (x86_64):

      kernel-xen-3.12.74-60.64.124.1
      kernel-xen-base-3.12.74-60.64.124.1
      kernel-xen-base-debuginfo-3.12.74-60.64.124.1
      kernel-xen-debuginfo-3.12.74-60.64.124.1
      kernel-xen-debugsource-3.12.74-60.64.124.1
      kernel-xen-devel-3.12.74-60.64.124.1
      kgraft-patch-3_12_74-60_64_124-default-1-2.3.1
      kgraft-patch-3_12_74-60_64_124-xen-1-2.3.1

   - SUSE Linux Enterprise Server 12-SP1-LTSS (s390x):

      kernel-default-man-3.12.74-60.64.124.1

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

      kernel-ec2-3.12.74-60.64.124.1
      kernel-ec2-debuginfo-3.12.74-60.64.124.1
      kernel-ec2-debugsource-3.12.74-60.64.124.1
      kernel-ec2-devel-3.12.74-60.64.124.1
      kernel-ec2-extra-3.12.74-60.64.124.1
      kernel-ec2-extra-debuginfo-3.12.74-60.64.124.1


References:

   https://www.suse.com/security/cve/CVE-2016-10906.html
   https://www.suse.com/security/cve/CVE-2017-18509.html
   https://www.suse.com/security/cve/CVE-2017-18551.html
   https://www.suse.com/security/cve/CVE-2017-18595.html
   https://www.suse.com/security/cve/CVE-2018-12207.html
   https://www.suse.com/security/cve/CVE-2018-20976.html
   https://www.suse.com/security/cve/CVE-2019-10207.html
   https://www.suse.com/security/cve/CVE-2019-10220.html
   https://www.suse.com/security/cve/CVE-2019-11135.html
   https://www.suse.com/security/cve/CVE-2019-11477.html
   https://www.suse.com/security/cve/CVE-2019-14814.html
   https://www.suse.com/security/cve/CVE-2019-14815.html
   https://www.suse.com/security/cve/CVE-2019-14816.html
   https://www.suse.com/security/cve/CVE-2019-14821.html
   https://www.suse.com/security/cve/CVE-2019-14835.html
   https://www.suse.com/security/cve/CVE-2019-15098.html
   https://www.suse.com/security/cve/CVE-2019-15118.html
   https://www.suse.com/security/cve/CVE-2019-15212.html
   https://www.suse.com/security/cve/CVE-2019-15215.html
   https://www.suse.com/security/cve/CVE-2019-15216.html
   https://www.suse.com/security/cve/CVE-2019-15217.html
   https://www.suse.com/security/cve/CVE-2019-15218.html
   https://www.suse.com/security/cve/CVE-2019-15219.html
   https://www.suse.com/security/cve/CVE-2019-15220.html
   https://www.suse.com/security/cve/CVE-2019-15221.html
   https://www.suse.com/security/cve/CVE-2019-15290.html
   https://www.suse.com/security/cve/CVE-2019-15291.html
   https://www.suse.com/security/cve/CVE-2019-15505.html
   https://www.suse.com/security/cve/CVE-2019-15807.html
   https://www.suse.com/security/cve/CVE-2019-15902.html
   https://www.suse.com/security/cve/CVE-2019-15926.html
   https://www.suse.com/security/cve/CVE-2019-15927.html
   https://www.suse.com/security/cve/CVE-2019-16232.html
   https://www.suse.com/security/cve/CVE-2019-16233.html
   https://www.suse.com/security/cve/CVE-2019-16234.html
   https://www.suse.com/security/cve/CVE-2019-16413.html
   https://www.suse.com/security/cve/CVE-2019-17055.html
   https://www.suse.com/security/cve/CVE-2019-17056.html
   https://www.suse.com/security/cve/CVE-2019-9456.html
   https://www.suse.com/security/cve/CVE-2019-9506.html
   https://bugzilla.suse.com/1117665
   https://bugzilla.suse.com/1123959
   https://bugzilla.suse.com/1137586
   https://bugzilla.suse.com/1137865
   https://bugzilla.suse.com/1137944
   https://bugzilla.suse.com/1139073
   https://bugzilla.suse.com/1139751
   https://bugzilla.suse.com/1142857
   https://bugzilla.suse.com/1144903
   https://bugzilla.suse.com/1145477
   https://bugzilla.suse.com/1145922
   https://bugzilla.suse.com/1146042
   https://bugzilla.suse.com/1146163
   https://bugzilla.suse.com/1146285
   https://bugzilla.suse.com/1146361
   https://bugzilla.suse.com/1146378
   https://bugzilla.suse.com/1146391
   https://bugzilla.suse.com/1146413
   https://bugzilla.suse.com/1146425
   https://bugzilla.suse.com/1146512
   https://bugzilla.suse.com/1146514
   https://bugzilla.suse.com/1146516
   https://bugzilla.suse.com/1146519
   https://bugzilla.suse.com/1146524
   https://bugzilla.suse.com/1146526
   https://bugzilla.suse.com/1146529
   https://bugzilla.suse.com/1146540
   https://bugzilla.suse.com/1146543
   https://bugzilla.suse.com/1146547
   https://bugzilla.suse.com/1146584
   https://bugzilla.suse.com/1146612
   https://bugzilla.suse.com/1147122
   https://bugzilla.suse.com/1148938
   https://bugzilla.suse.com/1149376
   https://bugzilla.suse.com/1149522
   https://bugzilla.suse.com/1149527
   https://bugzilla.suse.com/1149555
   https://bugzilla.suse.com/1150025
   https://bugzilla.suse.com/1150112
   https://bugzilla.suse.com/1150452
   https://bugzilla.suse.com/1150457
   https://bugzilla.suse.com/1150465
   https://bugzilla.suse.com/1151347
   https://bugzilla.suse.com/1151350
   https://bugzilla.suse.com/1152782
   https://bugzilla.suse.com/1152788
   https://bugzilla.suse.com/1153119
   https://bugzilla.suse.com/1155671
   https://bugzilla.suse.com/999278

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