ESB-2018.0057 - [SUSE] Kernel: Multiple vulnerabilities 2018-01-05

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

                               ESB-2018.0057
         Spectre and Meltdown patched in SUSE distributions, plus
                        sundry other security fixes
                              5 January 2018

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

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

Product:           Kernel
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Increased Privileges   -- Existing Account
                   Access Privileged Data -- Existing Account
                   Denial of Service      -- Existing Account
                   Unauthorised Access    -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-17806 CVE-2017-17805 CVE-2017-17558
                   CVE-2017-17450 CVE-2017-16939 CVE-2017-16538
                   CVE-2017-16534 CVE-2017-15868 CVE-2017-15115
                   CVE-2017-14106 CVE-2017-13167 CVE-2017-11600
                   CVE-2017-8824 CVE-2017-7472 CVE-2017-5754
                   CVE-2017-5753 CVE-2017-5715 

Reference:         ASB-2018.0002.2
                   ESB-2017.3259
                   ESB-2018.0012

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2018/suse-su-20180009-1
   https://www.suse.com/support/update/announcement/2018/suse-su-20180010-1
   https://www.suse.com/support/update/announcement/2018/suse-su-20180011-1
   https://www.suse.com/support/update/announcement/2018/suse-su-20180012-1

Comment: This bulletin contains four (4) SUSE security advisories.

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

   SUSE Security Update: Security update for microcode_ctl
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:0009-1
Rating:             important
References:         #1068032 
Cross-References:   CVE-2017-5715
Affected Products:
                    SUSE Linux Enterprise Server 11-SP4
                    SUSE Linux Enterprise Server 11-SP3-LTSS
                    SUSE Linux Enterprise Point of Sale 11-SP3
______________________________________________________________________________

   An update that fixes one vulnerability is now available.

Description:



   This update for microcode_ctl fixes the following issues:

   Added microcode_amd_fam17h.bin (bsc#1068032 CVE-2017-5715)

   This new firmware disables branch prediction on AMD family 17h processor.

   Also the CPU microcode for Intel Haswell-X, Skylake-X and Broadwell-X
   chipsets was updated to report both branch prediction control via CPUID
   flag and ability to control branch prediction via an MSR register.

   This update is part of a mitigation for a branch predictor based
   information disclosure attack, and needs additional code in the Linux
   Kernel to be active (bsc#1068032 CVE-2017-5715)


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 11-SP4:

      zypper in -t patch slessp4-microcode_ctl-13390=1

   - SUSE Linux Enterprise Server 11-SP3-LTSS:

      zypper in -t patch slessp3-microcode_ctl-13390=1

   - SUSE Linux Enterprise Point of Sale 11-SP3:

      zypper in -t patch sleposp3-microcode_ctl-13390=1

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


Package List:

   - SUSE Linux Enterprise Server 11-SP4 (i586 x86_64):

      microcode_ctl-1.17-102.83.6.1

   - SUSE Linux Enterprise Server 11-SP3-LTSS (i586 x86_64):

      microcode_ctl-1.17-102.83.6.1

   - SUSE Linux Enterprise Point of Sale 11-SP3 (i586):

      microcode_ctl-1.17-102.83.6.1


References:

   https://www.suse.com/security/cve/CVE-2017-5715.html
   https://bugzilla.suse.com/1068032

- --------------------------------------------------------------------------------

   SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:0010-1
Rating:             important
References:         #1005778 #1005780 #1005781 #1012382 #1017967 
                    #1039616 #1047487 #1063043 #1064311 #1065180 
                    #1068032 #1068951 #1070116 #1071009 #1072166 
                    #1072216 #1072556 #1072866 #1072890 #1072962 
                    #1073090 #1073525 #1073792 #1073809 #1073868 
                    #1073874 #1073912 #963897 #964063 #966170 
                    #966172 
Cross-References:   CVE-2017-17805 CVE-2017-17806 CVE-2017-5715
                    CVE-2017-5753 CVE-2017-5754
Affected Products:
                    SUSE Linux Enterprise Workstation Extension 12-SP3
                    SUSE Linux Enterprise Software Development Kit 12-SP3
                    SUSE Linux Enterprise Server 12-SP3
                    SUSE Linux Enterprise Live Patching 12-SP3
                    SUSE Linux Enterprise High Availability 12-SP3
                    SUSE Linux Enterprise Desktop 12-SP3
                    SUSE Container as a Service Platform ALL
______________________________________________________________________________

   An update that solves 5 vulnerabilities and has 26 fixes is
   now available.

Description:



   The SUSE Linux Enterprise 12 SP3 kernel was updated to receive various
   security and bugfixes.

   This update adds mitigations for various side channel attacks against
   modern CPUs that could disclose content of otherwise unreadable memory
   (bnc#1068032).

   - CVE-2017-5753 / "SpectreAttack": Local attackers on systems with modern
     CPUs featuring deep instruction pipelining could use attacker
     controllable speculative execution over code patterns in the Linux
     Kernel to leak content from
     otherwise not readable memory in the same address space, allowing
      retrieval of passwords, cryptographic keys and other secrets.

     This problem is mitigated by adding speculative fencing on affected code
   paths throughout the Linux kernel.


   - CVE-2017-5715 / "SpectreAttack": Local attackers on systems with modern
     CPUs featuring branch prediction could use mispredicted branches to
     speculatively execute code patterns that in turn could be made to leak
     other non-readable content in the same address space, an attack similar
     to CVE-2017-5753.

     This problem is mitigated by disabling predictive branches, depending
     on CPU architecture either by firmware updates and/or fixes in the
      user-kernel privilege boundaries.

     Please also check with your CPU / Hardware vendor for available firmware
   or BIOS updates.

     As this feature can have a performance impact, it can be disabled using
   the "nospec" kernel commandline option.


   - CVE-2017-5754 / "MeltdownAttack": Local attackers on systems with modern
     CPUs featuring deep instruction pipelining could use code patterns in
     userspace to speculative executive code that would read
     otherwise read protected memory.

     This problem is mitigated by unmapping the Linux Kernel from the user
   address space during user code execution, following a approach called
   "KAISER". The terms used here are "KAISER" / "Kernel Address Isolation"
   and "PTI" / "Page Table Isolation".

     This is only enabled by default on affected architectures.

     This feature can be enabled / disabled by the "pti=[on|off|auto]" or
   "nopti" commandline options.


   The following security bugs were fixed:

   - CVE-2017-17806: The HMAC implementation (crypto/hmac.c) in the Linux
     kernel did not validate that the underlying cryptographic hash algorithm
     is unkeyed, allowing a local attacker able to use the AF_ALG-based hash
     interface (CONFIG_CRYPTO_USER_API_HASH) and the SHA-3 hash algorithm
     (CONFIG_CRYPTO_SHA3) to cause a kernel stack buffer overflow by
     executing a crafted sequence of system calls that encounter a missing
     SHA-3 initialization (bnc#1073874).
   - CVE-2017-17805: The Salsa20 encryption algorithm in the Linux kernel did
     not correctly handle zero-length inputs, allowing a local attacker able
     to use the AF_ALG-based skcipher interface
     (CONFIG_CRYPTO_USER_API_SKCIPHER) to cause a denial of service
     (uninitialized-memory free and kernel crash) or have unspecified other
     impact by executing a crafted sequence
     of system calls that use the blkcipher_walk API. Both the generic
      implementation (crypto/salsa20_generic.c) and x86 implementation
      (arch/x86/crypto/salsa20_glue.c) of Salsa20 were vulnerable
      (bnc#1073792).


   The following non-security bugs were fixed:

   - Add undefine _unique_build_ids (bsc#964063)
   - apei / ERST: Fix missing error handling in erst_reader() (bsc#1072556).
   - arm: Hide finish_arch_post_lock_switch() from modules (bsc#1068032).
   - autofs: fix careless error in recent commit (bnc#1012382 bsc#1065180).
   - bnxt_en: Do not print "Link speed -1 no longer supported" messages
     (bsc#1070116).
   - bpf: prevent speculative execution in eBPF interpreter (bnc#1068032).
   - carl9170: prevent speculative execution (bnc#1068032).
   - ceph: drop negative child dentries before try pruning inode's alias
     (bsc#1073525).
   - Check cmdline_find_option() retval properly and use boot_cpu_has().
   - cifs: Fix NULL pointer deref on SMB2_tcon() failure (bsc#1071009).
   - cw1200: prevent speculative execution (bnc#1068032).
   - e1000e: Fix e1000_check_for_copper_link_ich8lan return value
     (bsc#1073809).
   - Fix unsed variable warning in has_unmovable_pages (bsc#1073868).
   - fs: prevent speculative execution (bnc#1068032).
   - genwqe: Take R/W permissions into account when dealing with memory pages
     (bsc#1073090).
   - ibmvnic: Include header descriptor support for ARP packets (bsc#1073912).
   - ibmvnic: Increase maximum number of RX/TX queues (bsc#1073912).
   - ibmvnic: Rename IBMVNIC_MAX_TX_QUEUES to IBMVNIC_MAX_QUEUES
     (bsc#1073912).
   - ipv6: prevent speculative execution (bnc#1068032).
   - iw_cxgb4: fix misuse of integer variable (bsc#963897,FATE#320114).
   - iw_cxgb4: only insert drain cqes if wq is flushed (bsc#321658
     FATE#1005778 bsc#321660 FATE#1005780 bsc#321661 FATE#1005781).
   - kaiser: add "nokaiser" boot option, using ALTERNATIVE.
   - kaiser: align addition to x86/mm/Makefile.
   - kaiser: asm/tlbflush.h handle noPGE at lower level.
   - kaiser: cleanups while trying for gold link.
   - kaiser: disabled on Xen PV.
   - kaiser: do not set _PAGE_NX on pgd_none.
   - kaiser: drop is_atomic arg to kaiser_pagetable_walk().
   - kaiser: enhanced by kernel and user PCIDs.
   - kaiser: ENOMEM if kaiser_pagetable_walk() NULL.
   - kaiser: fix build and FIXME in alloc_ldt_struct().
   - kaiser: fix perf crashes.
   - kaiser: fix regs to do_nmi() ifndef CONFIG_KAISER.
   - kaiser: fix unlikely error in alloc_ldt_struct().
   - kaiser: KAISER depends on SMP.
   - kaiser: kaiser_flush_tlb_on_return_to_user() check PCID.
   - kaiser: kaiser_remove_mapping() move along the pgd.
   - kaiser: Kernel Address Isolation.
   - kaiser: load_new_mm_cr3() let SWITCH_USER_CR3 flush.
   - kaiser: load_new_mm_cr3() let SWITCH_USER_CR3 flush user.
   - kaiser: name that 0x1000 KAISER_SHADOW_PGD_OFFSET.
   - kaiser: paranoid_entry pass cr3 need to paranoid_exit.
   - kaiser: PCID 0 for kernel and 128 for user.
   - kaiser: _pgd_alloc() without __GFP_REPEAT to avoid stalls.
   - kaiser: stack map PAGE_SIZE at THREAD_SIZE-PAGE_SIZE.
   - kaiser: tidied up asm/kaiser.h somewhat.
   - kaiser: tidied up kaiser_add/remove_mapping slightly.
   - kaiser: use ALTERNATIVE instead of x86_cr3_pcid_noflush.
   - kaiser: vmstat show NR_KAISERTABLE as nr_overhead.
   - kaiser: x86_cr3_pcid_noflush and x86_cr3_pcid_user.
   - kvm: svm: Do not intercept new speculative control MSRs (bsc#1068032).
   - kvm: x86: Add speculative control CPUID support for guests (bsc#1068032).
   - locking/barriers: introduce new memory barrier gmb() (bnc#1068032).
   - mm/mmu_context, sched/core: Fix mmu_context.h assumption (bsc#1068032).
   - net/mlx5e: DCBNL, Implement tc with ets type and zero bandwidth
     (bsc#966170 FATE#320225 bsc#966172 FATE#320226).
   - net: mpls: prevent speculative execution (bnc#1068032).
   - nfs: revalidate "." etc correctly on "open" (bsc#1068951).
   - nfs: revalidate "." etc correctly on "open" (git-fixes). Fix References:
     tag.
   - nfsv4: always set NFS_LOCK_LOST when a lock is lost (bsc#1068951).
   - nvme-fabrics: introduce init command check for a queue that is not alive
     (bsc#1072890).
   - nvme-fc: check if queue is ready in queue_rq (bsc#1072890).
   - nvme-fc: do not use bit masks for set/test_bit() numbers (bsc#1072890).
   - nvme-loop: check if queue is ready in queue_rq (bsc#1072890).
   - nvmet-fc: cleanup nvmet add_port/remove_port (bsc#1072890).
   - nvmet_fc: correct broken add_port (bsc#1072890).
   - p54: prevent speculative execution (bnc#1068032).
   - powerpc/barrier: add gmb.
   - powerpc: Secure memory rfi flush (bsc#1068032).
   - ptrace: Add a new thread access check (bsc#1068032).
   - qla2xxx: prevent speculative execution (bnc#1068032).
   - s390: add ppa to system call and program check path (bsc#1068032).
   - s390: introduce CPU alternatives (bsc#1068032).
   - s390/qeth: add missing hash table initializations (bnc#1072216,
     LTC#162173).
   - s390/qeth: fix early exit from error path (bnc#1072216, LTC#162173).
   - s390/qeth: fix thinko in IPv4 multicast address tracking (bnc#1072216,
     LTC#162173).
   - s390/spinlock: add gmb memory barrier (bsc#1068032).
   - sched/core: Add switch_mm_irqs_off() and use it in the scheduler
     (bsc#1068032).
   - sched/core: Idle_task_exit() shouldn't use switch_mm_irqs_off()
     (bsc#1068032).
   - scsi_dh_alua: skip RTPG for devices only supporting active/optimized
     (bsc#1064311).
   - scsi: lpfc: correct sg_seg_cnt attribute min vs default (bsc#1072166).
   - scsi: qedi: Limit number for CQ queues (bsc#1072866).
   - scsi_scan: Exit loop if TUR to LUN0 fails with 0x05/0x25 (bsc#1063043).
     This is specific to FUJITSU ETERNUS_DX* targets. They can return
     "Illegal Request - Logical unit not supported" and processing should
     leave the timeout loop in this case.
   - scsi: ses: check return code from ses_recv_diag() (bsc#1039616).
   - scsi: ses: Fixup error message 'failed to get diagnostic page
     0xffffffea' (bsc#1039616).
   - scsi: ses: Fix wrong page error (bsc#1039616).
   - scsi: ses: make page2 support optional (bsc#1039616).
   - sfc: pass valid pointers from efx_enqueue_unwind (bsc#1017967
     FATE#321663).
   - thermal/int340x: prevent speculative execution (bnc#1068032).
   - udf: prevent speculative execution (bnc#1068032).
   - Update config files: enable KAISER.
   - usb: host: fix incorrect updating of offset (bsc#1047487).
   - userns: prevent speculative execution (bnc#1068032).
   - uvcvideo: prevent speculative execution (bnc#1068032).
   - vxlan: correctly handle ipv6.disable module parameter (bsc#1072962).
   - x86/boot: Add early cmdline parsing for options with arguments.
   - x86/CPU/AMD: Add speculative control support for AMD (bsc#1068032).
   - x86/CPU/AMD: Make the LFENCE instruction serialized (bsc#1068032).
   - x86/CPU/AMD: Remove now unused definition of MFENCE_RDTSC feature
     (bsc#1068032).
   - x86/CPU: Check speculation control CPUID bit (bsc#1068032).
   - x86/enter: Add macros to set/clear IBRS and set IBPB (bsc#1068032).
   - x86/entry: Add a function to overwrite the RSB (bsc#1068032).
   - x86/entry: Stuff RSB for entry to kernel for non-SMEP platform
     (bsc#1068032).
   - x86/entry: Use IBRS on entry to kernel space (bsc#1068032).
   - x86/feature: Enable the x86 feature to control Speculation (bsc#1068032).
   - x86/idle: Disable IBRS when offlining a CPU and re-enable on wakeup
     (bsc#1068032).
   - x86/idle: Toggle IBRS when going idle (bsc#1068032).
   - x86/kaiser: Check boottime cmdline params.
   - x86/kaiser: Move feature detection up (bsc#1068032).
   - x86/kaiser: Reenable PARAVIRT.
   - x86/kaiser: Rename and simplify X86_FEATURE_KAISER handling.
   - x86/kvm: add MSR_IA32_SPEC_CTRL and MSR_IA32_PRED_CMD to kvm
     (bsc#1068032).
   - x86/kvm: Add MSR_IA32_SPEC_CTRL and MSR_IA32_PRED_CMD to kvm
     (bsc#1068032).
   - x86/kvm: Flush IBP when switching VMs (bsc#1068032).
   - x86/kvm: Pad RSB on VM transition (bsc#1068032).
   - x86/kvm: Toggle IBRS on VM entry and exit (bsc#1068032).
   - x86/mm/64: Fix reboot interaction with CR4.PCIDE (bsc#1068032).
   - x86/mm: Add a 'noinvpcid' boot option to turn off INVPCID (bsc#1068032).
   - x86/mm: Add INVPCID helpers (bsc#1068032).
   - x86/mm: Add the 'nopcid' boot option to turn off PCID (bsc#1068032).
   - x86/mm: Build arch/x86/mm/tlb.c even on !SMP (bsc#1068032).
   - x86/mm: Enable CR4.PCIDE on supported systems (bsc#1068032).
   - x86/mm: Fix INVPCID asm constraint (bsc#1068032).
   - x86/mm: If INVPCID is available, use it to flush global mappings
     (bsc#1068032).
   - x86/mm: Make flush_tlb_mm_range() more predictable (bsc#1068032).
   - x86/mm: Only set IBPB when the new thread cannot ptrace current thread
     (bsc#1068032).
   - x86/mm: Reimplement flush_tlb_page() using flush_tlb_mm_range()
     (bsc#1068032).
   - x86/mm: Remove flush_tlb() and flush_tlb_current_task() (bsc#1068032).
   - x86/mm: Remove the UP asm/tlbflush.h code, always use the (formerly) SMP
     code (bsc#1068032).
   - x86/mm, sched/core: Turn off IRQs in switch_mm() (bsc#1068032).
   - x86/mm, sched/core: Uninline switch_mm() (bsc#1068032).
   - x86/mm: Set IBPB upon context switch (bsc#1068032).
   - x86/MSR: Move native_*msr(.. u64) to msr.h (bsc#1068032).
   - x86/paravirt: Dont patch flush_tlb_single (bsc#1068032).
   - x86/spec: Add IBRS control functions (bsc#1068032).
   - x86/spec: Add "nospec" chicken bit (bsc#1068032).
   - x86/spec: Check CPUID direclty post microcode reload to support IBPB
     feature (bsc#1068032).
   - x86/spec_ctrl: Add an Indirect Branch Predictor barrier (bsc#1068032).
   - x86/spec_ctrl: Check whether IBPB is enabled before using it
     (bsc#1068032).
   - x86/spec_ctrl: Check whether IBRS is enabled before using it
     (bsc#1068032).
   - x86/svm: Add code to clear registers on VM exit (bsc#1068032).
   - x86/svm: Clobber the RSB on VM exit (bsc#1068032).
   - x86/svm: Set IBPB when running a different VCPU (bsc#1068032).
   - x86/svm: Set IBRS value on VM entry and exit (bsc#1068032).


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 Workstation Extension 12-SP3:

      zypper in -t patch SUSE-SLE-WE-12-SP3-2018-12=1

   - SUSE Linux Enterprise Software Development Kit 12-SP3:

      zypper in -t patch SUSE-SLE-SDK-12-SP3-2018-12=1

   - SUSE Linux Enterprise Server 12-SP3:

      zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-12=1

   - SUSE Linux Enterprise Live Patching 12-SP3:

      zypper in -t patch SUSE-SLE-Live-Patching-12-SP3-2018-12=1

   - SUSE Linux Enterprise High Availability 12-SP3:

      zypper in -t patch SUSE-SLE-HA-12-SP3-2018-12=1

   - SUSE Linux Enterprise Desktop 12-SP3:

      zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2018-12=1

   - SUSE Container as a Service Platform ALL:

      zypper in -t patch SUSE-CAASP-ALL-2018-12=1

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


Package List:

   - SUSE Linux Enterprise Workstation Extension 12-SP3 (x86_64):

      kernel-default-debuginfo-4.4.103-6.38.1
      kernel-default-debugsource-4.4.103-6.38.1
      kernel-default-extra-4.4.103-6.38.1
      kernel-default-extra-debuginfo-4.4.103-6.38.1

   - SUSE Linux Enterprise Software Development Kit 12-SP3 (aarch64 ppc64le s390x x86_64):

      kernel-obs-build-4.4.103-6.38.1
      kernel-obs-build-debugsource-4.4.103-6.38.1

   - SUSE Linux Enterprise Software Development Kit 12-SP3 (noarch):

      kernel-docs-4.4.103-6.38.1

   - SUSE Linux Enterprise Server 12-SP3 (aarch64 ppc64le s390x x86_64):

      kernel-default-4.4.103-6.38.1
      kernel-default-base-4.4.103-6.38.1
      kernel-default-base-debuginfo-4.4.103-6.38.1
      kernel-default-debuginfo-4.4.103-6.38.1
      kernel-default-debugsource-4.4.103-6.38.1
      kernel-default-devel-4.4.103-6.38.1
      kernel-syms-4.4.103-6.38.1

   - SUSE Linux Enterprise Server 12-SP3 (noarch):

      kernel-devel-4.4.103-6.38.1
      kernel-macros-4.4.103-6.38.1
      kernel-source-4.4.103-6.38.1

   - SUSE Linux Enterprise Server 12-SP3 (s390x):

      kernel-default-man-4.4.103-6.38.1

   - SUSE Linux Enterprise Live Patching 12-SP3 (ppc64le x86_64):

      kgraft-patch-4_4_103-6_38-default-1-4.5.1
      kgraft-patch-4_4_103-6_38-default-debuginfo-1-4.5.1

   - SUSE Linux Enterprise High Availability 12-SP3 (ppc64le s390x x86_64):

      cluster-md-kmp-default-4.4.103-6.38.1
      cluster-md-kmp-default-debuginfo-4.4.103-6.38.1
      dlm-kmp-default-4.4.103-6.38.1
      dlm-kmp-default-debuginfo-4.4.103-6.38.1
      gfs2-kmp-default-4.4.103-6.38.1
      gfs2-kmp-default-debuginfo-4.4.103-6.38.1
      kernel-default-debuginfo-4.4.103-6.38.1
      kernel-default-debugsource-4.4.103-6.38.1
      ocfs2-kmp-default-4.4.103-6.38.1
      ocfs2-kmp-default-debuginfo-4.4.103-6.38.1

   - SUSE Linux Enterprise Desktop 12-SP3 (noarch):

      kernel-devel-4.4.103-6.38.1
      kernel-macros-4.4.103-6.38.1
      kernel-source-4.4.103-6.38.1

   - SUSE Linux Enterprise Desktop 12-SP3 (x86_64):

      kernel-default-4.4.103-6.38.1
      kernel-default-debuginfo-4.4.103-6.38.1
      kernel-default-debugsource-4.4.103-6.38.1
      kernel-default-devel-4.4.103-6.38.1
      kernel-default-extra-4.4.103-6.38.1
      kernel-default-extra-debuginfo-4.4.103-6.38.1
      kernel-syms-4.4.103-6.38.1

   - SUSE Container as a Service Platform ALL (x86_64):

      kernel-default-4.4.103-6.38.1
      kernel-default-debuginfo-4.4.103-6.38.1
      kernel-default-debugsource-4.4.103-6.38.1


References:

   https://www.suse.com/security/cve/CVE-2017-17805.html
   https://www.suse.com/security/cve/CVE-2017-17806.html
   https://www.suse.com/security/cve/CVE-2017-5715.html
   https://www.suse.com/security/cve/CVE-2017-5753.html
   https://www.suse.com/security/cve/CVE-2017-5754.html
   https://bugzilla.suse.com/1005778
   https://bugzilla.suse.com/1005780
   https://bugzilla.suse.com/1005781
   https://bugzilla.suse.com/1012382
   https://bugzilla.suse.com/1017967
   https://bugzilla.suse.com/1039616
   https://bugzilla.suse.com/1047487
   https://bugzilla.suse.com/1063043
   https://bugzilla.suse.com/1064311
   https://bugzilla.suse.com/1065180
   https://bugzilla.suse.com/1068032
   https://bugzilla.suse.com/1068951
   https://bugzilla.suse.com/1070116
   https://bugzilla.suse.com/1071009
   https://bugzilla.suse.com/1072166
   https://bugzilla.suse.com/1072216
   https://bugzilla.suse.com/1072556
   https://bugzilla.suse.com/1072866
   https://bugzilla.suse.com/1072890
   https://bugzilla.suse.com/1072962
   https://bugzilla.suse.com/1073090
   https://bugzilla.suse.com/1073525
   https://bugzilla.suse.com/1073792
   https://bugzilla.suse.com/1073809
   https://bugzilla.suse.com/1073868
   https://bugzilla.suse.com/1073874
   https://bugzilla.suse.com/1073912
   https://bugzilla.suse.com/963897
   https://bugzilla.suse.com/964063
   https://bugzilla.suse.com/966170
   https://bugzilla.suse.com/966172

- --------------------------------------------------------------------------------

   SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:0011-1
Rating:             important
References:         #1013018 #1024612 #1034862 #1045479 #1045538 
                    #1047487 #1048185 #1050231 #1050431 #1056982 
                    #1063043 #1065180 #1065600 #1066569 #1066693 
                    #1066973 #1068032 #1068671 #1068984 #1069702 
                    #1070771 #1070964 #1071074 #1071470 #1071695 
                    #1072457 #1072561 #1072876 #1073792 #1073874 
                    
Cross-References:   CVE-2017-11600 CVE-2017-13167 CVE-2017-14106
                    CVE-2017-15115 CVE-2017-15868 CVE-2017-16534
                    CVE-2017-16538 CVE-2017-16939 CVE-2017-17450
                    CVE-2017-17558 CVE-2017-17805 CVE-2017-17806
                    CVE-2017-5715 CVE-2017-5753 CVE-2017-5754
                    CVE-2017-7472 CVE-2017-8824
Affected Products:
                    SUSE Linux Enterprise Software Development Kit 11-SP4
                    SUSE Linux Enterprise Server 11-SP4
                    SUSE Linux Enterprise Server 11-EXTRA
                    SUSE Linux Enterprise Debuginfo 11-SP4
______________________________________________________________________________

   An update that solves 17 vulnerabilities and has 13 fixes
   is now available.

Description:



   The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various
   security and bugfixes.

   This update adds mitigations for various side channel attacks against
   modern CPUs that could disclose content of otherwise unreadable memory
   (bnc#1068032).

   - CVE-2017-5753: Local attackers on systems with modern CPUs featuring
     deep instruction pipelining could use attacker controllable speculative
     execution over code patterns in the Linux Kernel to leak content from
     otherwise not readable memory in the same address space, allowing
      retrieval of passwords, cryptographic keys and other secrets.

     This problem is mitigated by adding speculative fencing on affected code
   paths throughout the Linux kernel.

     This issue is addressed for the x86_64, the IBM Power and IBM zSeries
   architecture.

   - CVE-2017-5715: Local attackers on systems with modern CPUs featuring
     branch prediction could use mispredicted branches to speculatively
     execute code patterns that in turn could be made to leak other
     non-readable content in the same address space, an attack similar to
     CVE-2017-5753.

     This problem is mitigated by disabling predictive branches, depending
     on CPU architecture either by firmware updates and/or fixes in the
      user-kernel privilege boundaries.

     This is done with help of Linux Kernel fixes on the Intel/AMD x86_64 and
   IBM zSeries architectures. On x86_64, this requires also updates of the
   CPU microcode packages, delivered in seperate updates.

     For IBM Power and zSeries the required firmware updates are supplied
     over regular channels by IBM.

     As this feature can have a performance impact, it can be disabled using
   the "nospec" kernel commandline option.

   - CVE-2017-5754: Local attackers on systems with modern CPUs featuring
     deep instruction pipelining could use code patterns in userspace to
     speculative executive code that would read otherwise read protected
     memory, an attack similar to CVE-2017-5753.

     This problem is mitigated by unmapping the Linux Kernel from the user
   address space during user code execution, following a approach called
   "KAISER". The terms used here are "KAISER" / "Kernel Address Isolation"
   and "PTI" / "Page Table Isolation".

     This update does this on the Intel x86_64 and IBM Power architecture.
   Updates are also necessary for the ARM architecture, but will be delivered
   in the next round of updates.

     This feature can be enabled / disabled by the "pti=[on|off|auto]" or
   "nopti" commandline options.


   The following security bugs were fixed:

   - CVE-2017-17806: The HMAC implementation (crypto/hmac.c) in the Linux
     kernel did not validate that the underlying cryptographic hash algorithm
     is unkeyed, allowing a local attacker able to use the AF_ALG-based hash
     interface (CONFIG_CRYPTO_USER_API_HASH) and the SHA-3 hash algorithm
     (CONFIG_CRYPTO_SHA3) to cause a kernel stack buffer overflow by
     executing a crafted sequence of system calls that encounter a missing
     SHA-3 initialization (bnc#1073874).
   - CVE-2017-17805: The Salsa20 encryption algorithm in the Linux kernel did
     not correctly handle zero-length inputs, allowing a local attacker able
     to use the AF_ALG-based skcipher interface
     (CONFIG_CRYPTO_USER_API_SKCIPHER) to cause a denial of service
     (uninitialized-memory free and kernel crash) or have unspecified other
     impact by executing a crafted sequence of system calls that use the
     blkcipher_walk API. Both the generic implementation
     (crypto/salsa20_generic.c) and x86 implementation
     (arch/x86/crypto/salsa20_glue.c) of Salsa20 were vulnerable
     (bnc#1073792).
   - CVE-2017-15868: The bnep_add_connection function in
     net/bluetooth/bnep/core.c in the Linux kernel did not ensure that an
     l2cap socket is available, which allowed local users to gain privileges
     via a crafted application (bnc#1071470).
   - CVE-2017-13167: An elevation of privilege vulnerability in the kernel
     sound timer. (bnc#1072876).
   - CVE-2017-16538: drivers/media/usb/dvb-usb-v2/lmedm04.c in the Linux
     kernel allowed local users to cause a denial of service (general
     protection fault and system crash) or possibly have unspecified other
     impact via a crafted USB device, related to a missing warm-start check
     and incorrect attach timing (dm04_lme2510_frontend_attach versus
     dm04_lme2510_tuner) (bnc#1066569).
   - CVE-2017-17558: The usb_destroy_configuration function in
     drivers/usb/core/config.c in the USB core subsystem in the Linux kernel
     did not consider the maximum number of configurations and interfaces
     before attempting to release resources, which allowed local users to
     cause a denial of service (out-of-bounds write access) or possibly have
     unspecified other impact via a crafted USB device (bnc#1072561).
   - CVE-2017-17450: net/netfilter/xt_osf.c in the Linux kernel did not
     require the CAP_NET_ADMIN capability for add_callback and
     remove_callback operations, which allowed local users to bypass intended
     access restrictions because the xt_osf_fingers data structure is shared
     across all net namespaces (bnc#1071695).
   - CVE-2017-8824: The dccp_disconnect function in net/dccp/proto.c in the
     Linux kernel allowed local users to gain privileges or cause a denial of
     service (use-after-free) via an AF_UNSPEC connect system call during the
     DCCP_LISTEN state (bnc#1070771).
   - CVE-2017-16939: The XFRM dump policy implementation in
     net/xfrm/xfrm_user.c in the Linux kernel allowed local users to gain
     privileges or cause a denial of service (use-after-free) via a crafted
     SO_RCVBUF setsockopt system call in conjunction with XFRM_MSG_GETPOLICY
     Netlink messages (bnc#1069702).
   - CVE-2017-15115: The sctp_do_peeloff function in net/sctp/socket.c in the
     Linux kernel did not check whether the intended netns is used in a
     peel-off action, which allowed local users to cause a denial of service
     (use-after-free and system crash) or possibly have unspecified other
     impact via crafted system calls (bnc#1068671).
   - 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-2017-11600: net/xfrm/xfrm_policy.c in the Linux kernel through
     4.12.3, when CONFIG_XFRM_MIGRATE is enabled, did not ensure that the dir
     value of xfrm_userpolicy_id is XFRM_POLICY_MAX or less, which allowed
     local users to cause a denial of service (out-of-bounds access) or
     possibly have unspecified other impact via an XFRM_MSG_MIGRATE xfrm
     Netlink message (bnc#1050231).
   - CVE-2017-7472: The KEYS subsystem in the Linux kernel allowed local
     users to cause a denial of service (memory consumption) via a series of
     KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring calls
     (bnc#1034862).
   - CVE-2017-16534: The cdc_parse_cdc_header function in
     drivers/usb/core/message.c in the Linux kernel allowed local users to
     cause a denial of service (out-of-bounds read and system crash) or
     possibly have unspecified other impact via a crafted USB device
     (bnc#1066693).

   The following non-security bugs were fixed:

   - adm80211: return an error if adm8211_alloc_rings() fails (bsc#1048185).
   - autofs: fix careless error in recent commit (bsc#1065180).
   - bpf: prevent speculative execution in eBPF interpreter (bnc#1068032).
   - carl9170: prevent speculative execution (bnc#1068032).
   - ecryptfs: fix dereference of NULL user_key_payload (bsc#1013018).
   - eCryptfs: use after free in ecryptfs_release_messaging() (bsc#1013018).
   - fs/9p: Compare qid.path in v9fs_test_inode (bsc#1013018).
   - fs: prevent speculative execution (bnc#1068032).
   - isa: Prevent NULL dereference in isa_bus driver callbacks (bsc#1045538).
   - kabi: silence spurious kabi error in net/sctp/socket.c (bsc#1068671).
   - kaiser: add "nokaiser" boot option, using ALTERNATIVE.
   - kaiser: fix ldt freeing.
   - kaiser: Kernel Address Isolation.
   - kaiser: use ALTERNATIVE instead of x86_cr3_pcid_noflush.
   - kaiser: work around kABI.
   - kvm: SVM: Do not intercept new speculative control MSRs (bsc#1068032).
   - kvm: x86: Add speculative control CPUID support for guests (bsc#1068032).
   - locking/barriers: introduce new memory barrier gmb() (bnc#1068032).
   - media: cx231xx-cards: fix NULL-deref at probe (bsc#1050431).
   - mm/madvise.c: fix madvise() infinite loop under special circumstances
     (bnc#1070964).
   - mm/mmu_context, sched/core: Fix mmu_context.h assumption.
   - p54: prevent speculative execution (bnc#1068032).
   - powerpc/barrier: add gmb.
   - powerpc: Secure memory rfi flush (bsc#1068032).
   - ptrace: Add a new thread access check (bsc#1068032).
   - qeth: check not more than 16 SBALEs on the completion queue
     (bnc#1072457, LTC#148203).
   - s390: add ppa to system call and program check path (bsc#1068032).
   - s390/disassembler: correct disassembly lines alignment (bnc#1066973,
     LTC#161577).
   - s390/disassembler: increase show_code buffer size (bnc#1066973,
     LTC#161577).
   - s390: fix transactional execution control register handling
     (bnc#1072457, LTC#162116).
   - s390: introduce CPU alternatives.
   - s390: introduce CPU alternatives (bsc#1068032).
   - s390/spinlock: add gmb memory barrier.
   - s390/spinlock: add gmb memory barrier (bsc#1068032).
   - s390/spinlock: add ppa to system call path.
   - sched/core: Add switch_mm_irqs_off() and use it in the scheduler.
   - sched/core: Idle_task_exit() shouldn't use switch_mm_irqs_off().
   - scsi_scan: Exit loop if TUR to LUN0 fails with 0x05/0x25 (bsc#1063043).
     This is specific to FUJITSU ETERNUS_DX* targets. They can return
     "Illegal Request - Logical unit not supported" and processing should
     leave the timeout loop in this case.
   - scsi: zfcp: fix erp_action use-before-initialize in REC action trace
     (bnc#1066973, LTC#160081).
   - temporary fix (bsc#1068032).
   - udf: prevent speculative execution (bnc#1068032).
   - usb: host: fix incorrect updating of offset (bsc#1047487).
   - usb: uas: fix bug in handling of alternate settings (bsc#1071074).
   - uvcvideo: prevent speculative execution (bnc#1068032).
   - video: udlfb: Fix read EDID timeout (bsc#1045538).
   - watchdog: hpwdt: add support for iLO5 (bsc#1024612).
   - watchdog/hpwdt: Check source of NMI (bsc#1024612).
   - x86-64: Give vvars their own page.
   - x86-64: Map the HPET NX.
   - x86/acpi: Handle SCI interrupts above legacy space gracefully
     (bsc#1068984).
   - x86/acpi: Reduce code duplication in mp_override_legacy_irq()
     (bsc#1068984).
   - x86/alternatives: Add instruction padding.
   - x86/alternatives: Cleanup DPRINTK macro.
   - x86/alternatives: Make JMPs more robust.
   - x86/alternatives: Use optimized NOPs for padding.
   - x86/boot: Add early cmdline parsing for options with arguments.
   - x86, boot: Carve out early cmdline parsing function.
   - x86/CPU/AMD: Add speculative control support for AMD (bsc#1068032).
   - x86/CPU/AMD: Make the LFENCE instruction serialized (bsc#1068032).
   - x86/CPU/AMD: Remove now unused definition of MFENCE_RDTSC feature
     (bsc#1068032).
   - x86/CPU: Check speculation control CPUID bit (bsc#1068032).
   - x86/cpu: Fix bootup crashes by sanitizing the argument of the
     'clearcpuid=' command-line option (bsc#1065600).
   - x86/enter: Add macros to set/clear IBRS and set IBPB (bsc#1068032).
   - x86/entry: Add a function to overwrite the RSB (bsc#1068032).
   - x86/entry: Stuff RSB for entry to kernel for non-SMEP platform
     (bsc#1068032).
   - x86/entry: Use IBRS on entry to kernel space (bsc#1068032).
   - x86/feature: Enable the x86 feature to control Speculation (bsc#1068032).
   - x86/idle: Disable IBRS when offlining a CPU and re-enable on wakeup
     (bsc#1068032).
   - x86/idle: Toggle IBRS when going idle (bsc#1068032).
   - x86/kaiser: Check boottime cmdline params.
   - x86/kaiser: disable vmstat accounting.
   - x86/kaiser: Move feature detection up (bsc#1068032).
   - x86/kaiser: propagate info to /proc/cpuinfo.
   - x86/kaiser: Rename and simplify X86_FEATURE_KAISER handling.
   - x86/kvm: Add MSR_IA32_SPEC_CTRL and MSR_IA32_PRED_CMD to kvm
     (bsc#1068032).
   - x86/kvm: Flush IBP when switching VMs (bsc#1068032).
   - x86/kvm: Pad RSB on VM transition (bsc#1068032).
   - x86/kvm: Toggle IBRS on VM entry and exit (bsc#1068032).
   - x86: Make alternative instruction pointers relative.
   - x86/microcode/AMD: Add support for fam17h microcode loading
     (bsc#1068032).
   - x86/mm/64: Fix reboot interaction with CR4.PCIDE.
   - x86/mm: Add a 'noinvpcid' boot option to turn off INVPCID.
   - x86/mm: Add INVPCID helpers.
   - x86/mm: Add the 'nopcid' boot option to turn off PCID.
   - x86/mm: Build arch/x86/mm/tlb.c even on !SMP.
   - x86/mm: Disable PCID on 32-bit kernels.
   - x86/mm: Enable CR4.PCIDE on supported systems.
   - x86/mm: fix bad backport to disable PCID on Xen.
   - x86/mm: Fix INVPCID asm constraint.
   - x86/mm: If INVPCID is available, use it to flush global mappings.
   - x86/mm/kaiser: re-enable vsyscalls.
   - x86/mm: Only set IBPB when the new thread cannot ptrace current thread
     (bsc#1068032).
   - x86/mm: Remove the UP asm/tlbflush.h code, always use the (formerly) SMP
     code.
   - x86/mm, sched/core: Turn off IRQs in switch_mm().
   - x86/mm, sched/core: Uninline switch_mm().
   - x86/mm: Set IBPB upon context switch (bsc#1068032).
   - x86/MSR: Move native_*msr(.. u64) to msr.h (bsc#1068032).
   - x86/spec: Add IBRS control functions (bsc#1068032).
   - x86/spec: Add "nospec" chicken bit (bsc#1068032).
   - x86/spec: Check CPUID direclty post microcode reload to support IBPB
     feature (bsc#1068032).
   - x86/spec_ctrl: Add an Indirect Branch Predictor barrier (bsc#1068032).
   - x86/spec_ctrl: Check whether IBPB is enabled before using it
     (bsc#1068032).
   - x86/spec_ctrl: Check whether IBRS is enabled before using it
     (bsc#1068032).
   - x86/svm: Add code to clear registers on VM exit (bsc#1068032).
   - x86/svm: Clobber the RSB on VM exit (bsc#1068032).
   - x86/svm: Set IBPB when running a different VCPU (bsc#1068032).
   - x86/svm: Set IBRS value on VM entry and exit (bsc#1068032).
   - xen/kaiser: add "nokaiser" boot option, using ALTERNATIVE.
   - xen/KAISER: Kernel Address Isolation.
   - xen/kaiser: use ALTERNATIVE instead of x86_cr3_pcid_noflush.
   - xen/kaiser: work around kABI.
   - xen/x86-64: Give vvars their own page.
   - xen/x86-64: Map the HPET NX.
   - xen/x86/alternatives: Add instruction padding.
   - xen/x86/kaiser: Rename and simplify X86_FEATURE_KAISER handling.
   - xen/x86/mm: Enable CR4.PCIDE on supported systems.
   - xen/x86/mm/kaiser: re-enable vsyscalls.
   - xen/x86/mm: Remove the UP asm/tlbflush.h code, always use the (formerly)
     SMP code.
   - xen: x86/mm, sched/core: Turn off IRQs in switch_mm().
   - xen: x86/mm, sched/core: Uninline switch_mm().
   - zd1211rw: fix NULL-deref at probe (bsc#1045479).


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 Software Development Kit 11-SP4:

      zypper in -t patch sdksp4-kernel-20180109-13391=1

   - SUSE Linux Enterprise Server 11-SP4:

      zypper in -t patch slessp4-kernel-20180109-13391=1

   - SUSE Linux Enterprise Server 11-EXTRA:

      zypper in -t patch slexsp3-kernel-20180109-13391=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-kernel-20180109-13391=1

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


Package List:

   - SUSE Linux Enterprise Software Development Kit 11-SP4 (noarch):

      kernel-docs-3.0.101-108.21.2

   - SUSE Linux Enterprise Server 11-SP4 (i586 ia64 ppc64 s390x x86_64):

      kernel-default-3.0.101-108.21.1
      kernel-default-base-3.0.101-108.21.1
      kernel-default-devel-3.0.101-108.21.1
      kernel-source-3.0.101-108.21.1
      kernel-syms-3.0.101-108.21.1
      kernel-trace-3.0.101-108.21.1
      kernel-trace-base-3.0.101-108.21.1
      kernel-trace-devel-3.0.101-108.21.1

   - SUSE Linux Enterprise Server 11-SP4 (i586 x86_64):

      kernel-ec2-3.0.101-108.21.1
      kernel-ec2-base-3.0.101-108.21.1
      kernel-ec2-devel-3.0.101-108.21.1
      kernel-xen-3.0.101-108.21.1
      kernel-xen-base-3.0.101-108.21.1
      kernel-xen-devel-3.0.101-108.21.1

   - SUSE Linux Enterprise Server 11-SP4 (ppc64):

      kernel-bigmem-3.0.101-108.21.1
      kernel-bigmem-base-3.0.101-108.21.1
      kernel-bigmem-devel-3.0.101-108.21.1
      kernel-ppc64-3.0.101-108.21.1
      kernel-ppc64-base-3.0.101-108.21.1
      kernel-ppc64-devel-3.0.101-108.21.1

   - SUSE Linux Enterprise Server 11-SP4 (s390x):

      kernel-default-man-3.0.101-108.21.1

   - SUSE Linux Enterprise Server 11-SP4 (i586):

      kernel-pae-3.0.101-108.21.1
      kernel-pae-base-3.0.101-108.21.1
      kernel-pae-devel-3.0.101-108.21.1

   - SUSE Linux Enterprise Server 11-EXTRA (i586 ia64 ppc64 s390x x86_64):

      kernel-default-extra-3.0.101-108.21.1

   - SUSE Linux Enterprise Server 11-EXTRA (i586 x86_64):

      kernel-xen-extra-3.0.101-108.21.1

   - SUSE Linux Enterprise Server 11-EXTRA (x86_64):

      kernel-trace-extra-3.0.101-108.21.1

   - SUSE Linux Enterprise Server 11-EXTRA (ppc64):

      kernel-ppc64-extra-3.0.101-108.21.1

   - SUSE Linux Enterprise Server 11-EXTRA (i586):

      kernel-pae-extra-3.0.101-108.21.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ia64 ppc64 s390x x86_64):

      kernel-default-debuginfo-3.0.101-108.21.1
      kernel-default-debugsource-3.0.101-108.21.1
      kernel-trace-debuginfo-3.0.101-108.21.1
      kernel-trace-debugsource-3.0.101-108.21.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ia64 s390x x86_64):

      kernel-default-devel-debuginfo-3.0.101-108.21.1
      kernel-trace-devel-debuginfo-3.0.101-108.21.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 x86_64):

      kernel-ec2-debuginfo-3.0.101-108.21.1
      kernel-ec2-debugsource-3.0.101-108.21.1
      kernel-xen-debuginfo-3.0.101-108.21.1
      kernel-xen-debugsource-3.0.101-108.21.1
      kernel-xen-devel-debuginfo-3.0.101-108.21.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (ppc64):

      kernel-bigmem-debuginfo-3.0.101-108.21.1
      kernel-bigmem-debugsource-3.0.101-108.21.1
      kernel-ppc64-debuginfo-3.0.101-108.21.1
      kernel-ppc64-debugsource-3.0.101-108.21.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586):

      kernel-pae-debuginfo-3.0.101-108.21.1
      kernel-pae-debugsource-3.0.101-108.21.1
      kernel-pae-devel-debuginfo-3.0.101-108.21.1


References:

   https://www.suse.com/security/cve/CVE-2017-11600.html
   https://www.suse.com/security/cve/CVE-2017-13167.html
   https://www.suse.com/security/cve/CVE-2017-14106.html
   https://www.suse.com/security/cve/CVE-2017-15115.html
   https://www.suse.com/security/cve/CVE-2017-15868.html
   https://www.suse.com/security/cve/CVE-2017-16534.html
   https://www.suse.com/security/cve/CVE-2017-16538.html
   https://www.suse.com/security/cve/CVE-2017-16939.html
   https://www.suse.com/security/cve/CVE-2017-17450.html
   https://www.suse.com/security/cve/CVE-2017-17558.html
   https://www.suse.com/security/cve/CVE-2017-17805.html
   https://www.suse.com/security/cve/CVE-2017-17806.html
   https://www.suse.com/security/cve/CVE-2017-5715.html
   https://www.suse.com/security/cve/CVE-2017-5753.html
   https://www.suse.com/security/cve/CVE-2017-5754.html
   https://www.suse.com/security/cve/CVE-2017-7472.html
   https://www.suse.com/security/cve/CVE-2017-8824.html
   https://bugzilla.suse.com/1013018
   https://bugzilla.suse.com/1024612
   https://bugzilla.suse.com/1034862
   https://bugzilla.suse.com/1045479
   https://bugzilla.suse.com/1045538
   https://bugzilla.suse.com/1047487
   https://bugzilla.suse.com/1048185
   https://bugzilla.suse.com/1050231
   https://bugzilla.suse.com/1050431
   https://bugzilla.suse.com/1056982
   https://bugzilla.suse.com/1063043
   https://bugzilla.suse.com/1065180
   https://bugzilla.suse.com/1065600
   https://bugzilla.suse.com/1066569
   https://bugzilla.suse.com/1066693
   https://bugzilla.suse.com/1066973
   https://bugzilla.suse.com/1068032
   https://bugzilla.suse.com/1068671
   https://bugzilla.suse.com/1068984
   https://bugzilla.suse.com/1069702
   https://bugzilla.suse.com/1070771
   https://bugzilla.suse.com/1070964
   https://bugzilla.suse.com/1071074
   https://bugzilla.suse.com/1071470
   https://bugzilla.suse.com/1071695
   https://bugzilla.suse.com/1072457
   https://bugzilla.suse.com/1072561
   https://bugzilla.suse.com/1072876
   https://bugzilla.suse.com/1073792
   https://bugzilla.suse.com/1073874

- --------------------------------------------------------------------------------

   SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID:    SUSE-SU-2018:0012-1
Rating:             important
References:         #1012382 #1039616 #1047487 #1063043 #1064311 
                    #1065180 #1068032 #1068951 #1071009 #1072556 
                    #1072962 #1073090 #1073792 #1073809 #1073874 
                    #1073912 #964063 #969470 
Cross-References:   CVE-2017-17805 CVE-2017-17806 CVE-2017-5715
                    CVE-2017-5753 CVE-2017-5754
Affected Products:
                    SUSE Linux Enterprise Workstation Extension 12-SP2
                    SUSE Linux Enterprise Software Development Kit 12-SP2
                    SUSE Linux Enterprise Server for Raspberry Pi 12-SP2
                    SUSE Linux Enterprise Server 12-SP2
                    SUSE Linux Enterprise Live Patching 12
                    SUSE Linux Enterprise High Availability 12-SP2
                    SUSE Linux Enterprise Desktop 12-SP2
                    OpenStack Cloud Magnum Orchestration 7
______________________________________________________________________________

   An update that solves 5 vulnerabilities and has 13 fixes is
   now available.

Description:



   The SUSE Linux Enterprise 12 SP2 kernel was updated to receive various
   security and bugfixes.

   This update adds mitigations for various side channel attacks against
   modern CPUs that could disclose content of otherwise unreadable memory
   (bnc#1068032).

   - CVE-2017-5753 / "SpectreAttack": Local attackers on systems with modern
     CPUs featuring deep instruction pipelining could use attacker
     controllable speculative execution over code patterns in the Linux
     Kernel to leak content from otherwise not readable memory in the same
     address space, allowing retrieval of passwords, cryptographic keys and
     other secrets.

     This problem is mitigated by adding speculative fencing on affected code
   paths throughout the Linux kernel.


   - CVE-2017-5715 / "SpectreAttack": Local attackers on systems with modern
     CPUs featuring branch prediction could use mispredicted branches to
     speculatively execute code patterns that in turn could be made to leak
     other non-readable content in the same address space, an attack similar
     to CVE-2017-5753.

     This problem is mitigated by disabling predictive branches, depending
     on CPU architecture either by firmware updates and/or fixes in the
      user-kernel privilege boundaries.

     Please also check with your CPU / Hardware vendor on updated firmware
     or BIOS images regarding this issue.

     As this feature can have a performance impact, it can be disabled using
   the "nospec" kernel commandline option.


   - CVE-2017-5754 / "MeltdownAttack": Local attackers on systems with modern
     CPUs featuring deep instruction pipelining could use code patterns in
     userspace to speculative executive code that would read
     otherwise read protected memory, an attack similar to CVE-2017-5753.

     This problem is mitigated by unmapping the Linux Kernel from the user
   address space during user code execution, following a approach called
   "KAISER". The terms used here are "KAISER" / "Kernel Address Isolation"
   and "PTI" / "Page Table Isolation".

     Note that this is only done on affected platforms.

     This feature can be enabled / disabled by the "pti=[on|off|auto]" or
   "nopti" commandline options.

   Also the following unrelated security bugs were fixed:

   - CVE-2017-17806: The HMAC implementation (crypto/hmac.c) in the Linux
     kernel did not validate that the underlying cryptographic hash algorithm
     is unkeyed, allowing a local attacker able to use the AF_ALG-based hash
     interface (CONFIG_CRYPTO_USER_API_HASH) and the SHA-3 hash algorithm
     (CONFIG_CRYPTO_SHA3) to cause a kernel stack buffer overflow by
     executing a crafted sequence of system calls that encounter a missing
     SHA-3 initialization (bnc#1073874).
   - CVE-2017-17805: The Salsa20 encryption algorithm in the Linux kernel did
     not correctly handle zero-length inputs, allowing a local attacker able
     to use the AF_ALG-based skcipher interface
     (CONFIG_CRYPTO_USER_API_SKCIPHER) to cause a denial of service
     (uninitialized-memory free and kernel crash) or have unspecified other
     impact by executing a crafted sequence of system calls that use the
     blkcipher_walk API. Both the generic implementation
     (crypto/salsa20_generic.c) and x86 implementation
     (arch/x86/crypto/salsa20_glue.c) of Salsa20 were vulnerable
     (bnc#1073792).

   The following non-security bugs were fixed:

   - Add undefine _unique_build_ids (bsc#964063)
   - Always sign validate_negotiate_info reqs (bsc#1071009, fate#324404).
   - apei / ERST: Fix missing error handling in erst_reader() (bsc#1072556).
   - arm: Hide finish_arch_post_lock_switch() from modules (bsc#1068032).
   - autofs: fix careless error in recent commit (bnc#1012382 bsc#1065180).
   - bpf: prevent speculative execution in eBPF interpreter (bnc#1068032).
   - carl9170: prevent speculative execution (bnc#1068032).
   - Check cmdline_find_option() retval properly and use boot_cpu_has().
   - cw1200: prevent speculative execution (bnc#1068032).
   - e1000e: Avoid receiver overrun interrupt bursts (bsc#969470 FATE#319819).
   - e1000e: Fix e1000_check_for_copper_link_ich8lan return value
     (bsc#1073809).
   - Fix leak of validate_negotiate_info resp (bsc#1071009, fate#324404).
   - Fix NULL pointer deref in SMB2_tcon() (bsc#1071009, fate#324404).
   - Fix validate_negotiate_info uninitialized mem (bsc#1071009, fate#324404).
   - fs: prevent speculative execution (bnc#1068032).
   - genwqe: Take R/W permissions into account when dealing with memory pages
     (bsc#1073090).
   - ibmvnic: Include header descriptor support for ARP packets (bsc#1073912).
   - ibmvnic: Increase maximum number of RX/TX queues (bsc#1073912).
   - ibmvnic: Rename IBMVNIC_MAX_TX_QUEUES to IBMVNIC_MAX_QUEUES
     (bsc#1073912).
   - ipv6: prevent speculative execution (bnc#1068032).
   - kaiser: add "nokaiser" boot option, using ALTERNATIVE.
   - kaiser: align addition to x86/mm/Makefile.
   - kaiser: asm/tlbflush.h handle noPGE at lower level.
   - kaiser: cleanups while trying for gold link.
   - kaiser: Disable on Xen PV.
   - kaiser: do not set _PAGE_NX on pgd_none.
   - kaiser: drop is_atomic arg to kaiser_pagetable_walk().
   - kaiser: enhanced by kernel and user PCIDs.
   - kaiser: ENOMEM if kaiser_pagetable_walk() NULL.
   - kaiser: fix build and FIXME in alloc_ldt_struct().
   - kaiser: fix perf crashes.
   - kaiser: fix regs to do_nmi() ifndef CONFIG_KAISER.
   - kaiser: fix unlikely error in alloc_ldt_struct().
   - kaiser: KAISER depends on SMP.
   - kaiser: kaiser_flush_tlb_on_return_to_user() check PCID.
   - kaiser: kaiser_remove_mapping() move along the pgd.
   - kaiser: Kernel Address Isolation.
   - kaiser: load_new_mm_cr3() let SWITCH_USER_CR3 flush.
   - kaiser: load_new_mm_cr3() let SWITCH_USER_CR3 flush user.
   - kaiser: name that 0x1000 KAISER_SHADOW_PGD_OFFSET.
   - kaiser: paranoid_entry pass cr3 need to paranoid_exit.
   - kaiser: PCID 0 for kernel and 128 for user.
   - kaiser: _pgd_alloc() without __GFP_REPEAT to avoid stalls.
   - kaiser: stack map PAGE_SIZE at THREAD_SIZE-PAGE_SIZE.
   - kaiser: tidied up asm/kaiser.h somewhat.
   - kaiser: tidied up kaiser_add/remove_mapping slightly.
   - kaiser: use ALTERNATIVE instead of x86_cr3_pcid_noflush.
   - kaiser: vmstat show NR_KAISERTABLE as nr_overhead.
   - kaiser: x86_cr3_pcid_noflush and x86_cr3_pcid_user.
   - kvm: SVM: Do not intercept new speculative control MSRs (bsc#1068032).
   - kvm: x86: Add speculative control CPUID support for guests (bsc#1068032).
   - locking/barriers: introduce new memory barrier gmb() (bnc#1068032).
   - mm/mmu_context, sched/core: Fix mmu_context.h assumption (bsc#1068032).
   - net: mpls: prevent speculative execution (bnc#1068032).
   - nfs: revalidate "." etc correctly on "open" (bsc#1068951).
   - nfs: revalidate "." etc correctly on "open" (git-fixes). Fix References
     tag.
   - nfsv4: always set NFS_LOCK_LOST when a lock is lost (bsc#1068951).
   - p54: prevent speculative execution (bnc#1068032).
   - powerpc/barrier: add gmb.
   - powerpc: Secure memory rfi flush (bsc#1068032).
   - ptrace: Add a new thread access check (bsc#1068032).
   - qla2xxx: prevent speculative execution (bnc#1068032).
   - Redo encryption backport to fix pkt signing (bsc#1071009, fate#324404).
   - s390: add ppa to system call and program check path (bsc#1068032).
   - s390: introduce CPU alternatives.
   - s390: introduce CPU alternatives (bsc#1068032).
   - s390/spinlock: add gmb memory barrier
   - s390/spinlock: add gmb memory barrier (bsc#1068032).
   - s390/spinlock: add ppa to system call path Signoff the s390 patches.
   - sched/core: Add switch_mm_irqs_off() and use it in the scheduler
     (bsc#1068032).
   - sched/core: Idle_task_exit() shouldn't use switch_mm_irqs_off()
     (bsc#1068032).
   - scsi_dh_alua: skip RTPG for devices only supporting active/optimized
     (bsc#1064311).
   - scsi_scan: Exit loop if TUR to LUN0 fails with 0x05/0x25 (bsc#1063043).
     This is specific to FUJITSU ETERNUS_DX* targets. They can return
     "Illegal Request - Logical unit not supported" and processing should
     leave the timeout loop in this case.
   - scsi: ses: check return code from ses_recv_diag() (bsc#1039616).
   - scsi: ses: Fixup error message 'failed to get diagnostic page
     0xffffffea' (bsc#1039616).
   - scsi: ses: Fix wrong page error (bsc#1039616).
   - scsi: ses: make page2 support optional (bsc#1039616).
   - Thermal/int340x: prevent speculative execution (bnc#1068032).
   - udf: prevent speculative execution (bnc#1068032).
   - Update config files: enable KAISER.
   - usb: host: fix incorrect updating of offset (bsc#1047487).
   - userns: prevent speculative execution (bnc#1068032).
   - uvcvideo: prevent speculative execution (bnc#1068032).
   - vxlan: correctly handle ipv6.disable module parameter (bsc#1072962).
   - x86/boot: Add early cmdline parsing for options with arguments.
   - x86/CPU/AMD: Add speculative control support for AMD (bsc#1068032).
   - x86/CPU/AMD: Make the LFENCE instruction serialized (bsc#1068032).
   - x86/CPU/AMD: Remove now unused definition of MFENCE_RDTSC feature
     (bsc#1068032).
   - x86/CPU: Check speculation control CPUID bit (bsc#1068032).
   - x86/enter: Add macros to set/clear IBRS and set IBPB (bsc#1068032).
   - x86/entry: Add a function to overwrite the RSB (bsc#1068032).
   - x86/entry: Stuff RSB for entry to kernel for non-SMEP platform
     (bsc#1068032).
   - x86/entry: Use IBRS on entry to kernel space (bsc#1068032).
   - x86/feature: Enable the x86 feature to control Speculation (bsc#1068032).
   - x86/idle: Disable IBRS when offlining a CPU and re-enable on wakeup
     (bsc#1068032).
   - x86/idle: Toggle IBRS when going idle (bsc#1068032).
   - x86/kaiser: Check boottime cmdline params.
   - x86/kaiser: Move feature detection up (bsc#1068032).
   - x86/kaiser: Reenable PARAVIRT.
   - x86/kaiser: Rename and simplify X86_FEATURE_KAISER handling.
   - x86/kvm: Add MSR_IA32_SPEC_CTRL and MSR_IA32_PRED_CMD to kvm
     (bsc#1068032).
   - x86/kvm: Flush IBP when switching VMs (bsc#1068032).
   - x86/kvm: Pad RSB on VM transition (bsc#1068032).
   - x86/kvm: Toggle IBRS on VM entry and exit (bsc#1068032).
   - x86/mm/64: Fix reboot interaction with CR4.PCIDE (bsc#1068032).
   - x86/mm: Add a 'noinvpcid' boot option to turn off INVPCID (bsc#1068032).
   - x86/mm: Add INVPCID helpers (bsc#1068032).
   - x86/mm: Add the 'nopcid' boot option to turn off PCID (bsc#1068032).
   - x86/mm: Build arch/x86/mm/tlb.c even on !SMP (bsc#1068032).
   - x86/mm: Enable CR4.PCIDE on supported systems (bsc#1068032).
   - x86/mm: Fix INVPCID asm constraint (bsc#1068032).
   - x86/mm: If INVPCID is available, use it to flush global mappings
     (bsc#1068032).
   - x86/mm: Make flush_tlb_mm_range() more predictable (bsc#1068032).
   - x86/mm: Only set IBPB when the new thread cannot ptrace current thread
     (bsc#1068032).
   - x86/mm: Reimplement flush_tlb_page() using flush_tlb_mm_range()
     (bsc#1068032).
   - x86/mm: Remove flush_tlb() and flush_tlb_current_task() (bsc#1068032).
   - x86/mm: Remove the UP asm/tlbflush.h code, always use the (formerly) SMP
     code (bsc#1068032).
   - x86/mm, sched/core: Turn off IRQs in switch_mm() (bsc#1068032).
   - x86/mm, sched/core: Uninline switch_mm() (bsc#1068032).
   - x86/mm: Set IBPB upon context switch (bsc#1068032).
   - x86/MSR: Move native_*msr(.. u64) to msr.h (bsc#1068032).
   - x86/paravirt: Dont patch flush_tlb_single (bsc#1068032).
   - x86/spec: Add IBRS control functions (bsc#1068032).
   - x86/spec: Add "nospec" chicken bit (bsc#1068032).
   - x86/spec: Check CPUID direclty post microcode reload to support IBPB
     feature (bsc#1068032).
   - x86/spec_ctrl: Add an Indirect Branch Predictor barrier (bsc#1068032).
   - x86/spec_ctrl: Check whether IBPB is enabled before using it
     (bsc#1068032).
   - x86/spec_ctrl: Check whether IBRS is enabled before using it
     (bsc#1068032).
   - x86/svm: Add code to clear registers on VM exit (bsc#1068032).
   - x86/svm: Clobber the RSB on VM exit (bsc#1068032).
   - x86/svm: Set IBPB when running a different VCPU (bsc#1068032).
   - x86/svm: Set IBRS value on VM entry and exit (bsc#1068032).


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 Workstation Extension 12-SP2:

      zypper in -t patch SUSE-SLE-WE-12-SP2-2018-11=1

   - SUSE Linux Enterprise Software Development Kit 12-SP2:

      zypper in -t patch SUSE-SLE-SDK-12-SP2-2018-11=1

   - SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:

      zypper in -t patch SUSE-SLE-RPI-12-SP2-2018-11=1

   - SUSE Linux Enterprise Server 12-SP2:

      zypper in -t patch SUSE-SLE-SERVER-12-SP2-2018-11=1

   - SUSE Linux Enterprise Live Patching 12:

      zypper in -t patch SUSE-SLE-Live-Patching-12-2018-11=1

   - SUSE Linux Enterprise High Availability 12-SP2:

      zypper in -t patch SUSE-SLE-HA-12-SP2-2018-11=1

   - SUSE Linux Enterprise Desktop 12-SP2:

      zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2018-11=1

   - OpenStack Cloud Magnum Orchestration 7:

      zypper in -t patch SUSE-OpenStack-Cloud-Magnum-Orchestration-7-2018-11=1

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


Package List:

   - SUSE Linux Enterprise Workstation Extension 12-SP2 (x86_64):

      kernel-default-debuginfo-4.4.103-92.56.1
      kernel-default-debugsource-4.4.103-92.56.1
      kernel-default-extra-4.4.103-92.56.1
      kernel-default-extra-debuginfo-4.4.103-92.56.1

   - SUSE Linux Enterprise Software Development Kit 12-SP2 (aarch64 ppc64le s390x x86_64):

      kernel-obs-build-4.4.103-92.56.1
      kernel-obs-build-debugsource-4.4.103-92.56.1

   - SUSE Linux Enterprise Software Development Kit 12-SP2 (noarch):

      kernel-docs-4.4.103-92.56.1

   - SUSE Linux Enterprise Server for Raspberry Pi 12-SP2 (aarch64):

      kernel-default-4.4.103-92.56.1
      kernel-default-base-4.4.103-92.56.1
      kernel-default-base-debuginfo-4.4.103-92.56.1
      kernel-default-debuginfo-4.4.103-92.56.1
      kernel-default-debugsource-4.4.103-92.56.1
      kernel-default-devel-4.4.103-92.56.1
      kernel-syms-4.4.103-92.56.1

   - SUSE Linux Enterprise Server for Raspberry Pi 12-SP2 (noarch):

      kernel-devel-4.4.103-92.56.1
      kernel-macros-4.4.103-92.56.1
      kernel-source-4.4.103-92.56.1

   - SUSE Linux Enterprise Server 12-SP2 (aarch64 ppc64le s390x x86_64):

      kernel-default-4.4.103-92.56.1
      kernel-default-base-4.4.103-92.56.1
      kernel-default-base-debuginfo-4.4.103-92.56.1
      kernel-default-debuginfo-4.4.103-92.56.1
      kernel-default-debugsource-4.4.103-92.56.1
      kernel-default-devel-4.4.103-92.56.1
      kernel-syms-4.4.103-92.56.1

   - SUSE Linux Enterprise Server 12-SP2 (noarch):

      kernel-devel-4.4.103-92.56.1
      kernel-macros-4.4.103-92.56.1
      kernel-source-4.4.103-92.56.1

   - SUSE Linux Enterprise Server 12-SP2 (s390x):

      kernel-default-man-4.4.103-92.56.1

   - SUSE Linux Enterprise Live Patching 12 (x86_64):

      kgraft-patch-4_4_103-92_56-default-1-3.3.1

   - SUSE Linux Enterprise High Availability 12-SP2 (ppc64le s390x x86_64):

      cluster-md-kmp-default-4.4.103-92.56.1
      cluster-md-kmp-default-debuginfo-4.4.103-92.56.1
      cluster-network-kmp-default-4.4.103-92.56.1
      cluster-network-kmp-default-debuginfo-4.4.103-92.56.1
      dlm-kmp-default-4.4.103-92.56.1
      dlm-kmp-default-debuginfo-4.4.103-92.56.1
      gfs2-kmp-default-4.4.103-92.56.1
      gfs2-kmp-default-debuginfo-4.4.103-92.56.1
      kernel-default-debuginfo-4.4.103-92.56.1
      kernel-default-debugsource-4.4.103-92.56.1
      ocfs2-kmp-default-4.4.103-92.56.1
      ocfs2-kmp-default-debuginfo-4.4.103-92.56.1

   - SUSE Linux Enterprise Desktop 12-SP2 (noarch):

      kernel-devel-4.4.103-92.56.1
      kernel-macros-4.4.103-92.56.1
      kernel-source-4.4.103-92.56.1

   - SUSE Linux Enterprise Desktop 12-SP2 (x86_64):

      kernel-default-4.4.103-92.56.1
      kernel-default-debuginfo-4.4.103-92.56.1
      kernel-default-debugsource-4.4.103-92.56.1
      kernel-default-devel-4.4.103-92.56.1
      kernel-default-extra-4.4.103-92.56.1
      kernel-default-extra-debuginfo-4.4.103-92.56.1
      kernel-syms-4.4.103-92.56.1

   - OpenStack Cloud Magnum Orchestration 7 (x86_64):

      kernel-default-4.4.103-92.56.1
      kernel-default-debuginfo-4.4.103-92.56.1
      kernel-default-debugsource-4.4.103-92.56.1


References:

   https://www.suse.com/security/cve/CVE-2017-17805.html
   https://www.suse.com/security/cve/CVE-2017-17806.html
   https://www.suse.com/security/cve/CVE-2017-5715.html
   https://www.suse.com/security/cve/CVE-2017-5753.html
   https://www.suse.com/security/cve/CVE-2017-5754.html
   https://bugzilla.suse.com/1012382
   https://bugzilla.suse.com/1039616
   https://bugzilla.suse.com/1047487
   https://bugzilla.suse.com/1063043
   https://bugzilla.suse.com/1064311
   https://bugzilla.suse.com/1065180
   https://bugzilla.suse.com/1068032
   https://bugzilla.suse.com/1068951
   https://bugzilla.suse.com/1071009
   https://bugzilla.suse.com/1072556
   https://bugzilla.suse.com/1072962
   https://bugzilla.suse.com/1073090
   https://bugzilla.suse.com/1073792
   https://bugzilla.suse.com/1073809
   https://bugzilla.suse.com/1073874
   https://bugzilla.suse.com/1073912
   https://bugzilla.suse.com/964063
   https://bugzilla.suse.com/969470

- --------------------------END INCLUDED TEXT--------------------

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