SUSE-SU-2016:2100-1: important: Security update for xen

sle-security-updates at lists.suse.com sle-security-updates at lists.suse.com
Thu Aug 18 10:09:53 MDT 2016


   SUSE Security Update: Security update for xen
______________________________________________________________________________

Announcement ID:    SUSE-SU-2016:2100-1
Rating:             important
References:         #954872 #955399 #957986 #958848 #961600 #963161 
                    #964427 #967630 #973188 #974038 #974912 #975130 
                    #975138 #975907 #976058 #976111 #978164 #978295 
                    #978413 #979035 #979620 #979670 #980716 #980724 
                    #981264 #981276 #982024 #982025 #982026 #982224 
                    #982225 #982286 #982695 #982960 #983973 #983984 
                    #985503 #986586 #988675 #989235 #990843 #990923 
                    
Cross-References:   CVE-2014-3672 CVE-2016-3158 CVE-2016-3159
                    CVE-2016-3710 CVE-2016-3960 CVE-2016-4001
                    CVE-2016-4002 CVE-2016-4020 CVE-2016-4037
                    CVE-2016-4439 CVE-2016-4441 CVE-2016-4453
                    CVE-2016-4454 CVE-2016-4952 CVE-2016-4962
                    CVE-2016-4963 CVE-2016-5105 CVE-2016-5106
                    CVE-2016-5107 CVE-2016-5126 CVE-2016-5238
                    CVE-2016-5337 CVE-2016-5338 CVE-2016-5403
                    CVE-2016-6258 CVE-2016-6351
Affected Products:
                    SUSE Linux Enterprise Software Development Kit 11-SP4
                    SUSE Linux Enterprise Server 11-SP4
                    SUSE Linux Enterprise Debuginfo 11-SP4
______________________________________________________________________________

   An update that solves 26 vulnerabilities and has 16 fixes
   is now available.

Description:

   This update for xen fixes the several issues.

   These security issues were fixed:
   - CVE-2014-3672: The qemu implementation in libvirt Xen allowed local
     guest OS users to cause a denial of service (host disk consumption) by
     writing to stdout or stderr (bsc#981264).
   - CVE-2016-3158: The xrstor function did not properly handle writes to the
     hardware FSW.ES bit when running on AMD64 processors, which allowed
     local guest OS users to obtain sensitive register content information
     from another guest by leveraging pending exception and mask bits
     (bsc#973188).
   - CVE-2016-3159: The fpu_fxrstor function in arch/x86/i387.c did not
     properly handle writes to the hardware FSW.ES bit when running on AMD64
     processors, which allowed local guest OS users to obtain sensitive
     register content information from another guest by leveraging pending
     exception and mask bits (bsc#973188).
   - CVE-2016-3710: The VGA module improperly performed bounds checking on
     banked access to video memory, which allowed local guest OS
     administrators to execute arbitrary code on the host by changing access
     modes after setting the bank register, aka the "Dark Portal" issue
     (bsc#978164).
   - CVE-2016-3960: Integer overflow in the x86 shadow pagetable code allowed
     local guest OS users to cause a denial of service (host crash) or
     possibly gain privileges by shadowing a superpage mapping (bsc#974038).
   - CVE-2016-4001: Buffer overflow in the stellaris_enet_receive function,
     when the Stellaris ethernet controller is configured to accept large
     packets, allowed remote attackers to cause a denial of service (QEMU
     crash) via a large packet (bsc#975130).
   - CVE-2016-4002: Buffer overflow in the mipsnet_receive function, when the
     guest NIC is configured to accept large packets, allowed remote
     attackers to cause a denial of service (memory corruption and QEMU
     crash) or possibly execute arbitrary code via a packet larger than 1514
     bytes (bsc#975138).
   - CVE-2016-4020: The patch_instruction function did not initialize the
     imm32 variable, which allowed local guest OS administrators to obtain
     sensitive information from host stack memory by accessing the Task
     Priority Register (TPR) (bsc#975907).
   - CVE-2016-4037: The ehci_advance_state function in hw/usb/hcd-ehci.c
     allowed local guest OS administrators to cause a denial of service
     (infinite loop and CPU consumption) via a circular split isochronous
     transfer descriptor (siTD) list (bsc#976111).
   - CVE-2016-4439: The esp_reg_write function in the 53C9X Fast SCSI
     Controller (FSC) support did not properly check command buffer length,
     which allowed local guest OS administrators to cause a denial of service
     (out-of-bounds write and QEMU process crash) or potentially execute
     arbitrary code on the host via unspecified vectors (bsc#980716).
   - CVE-2016-4441: The get_cmd function in the 53C9X Fast SCSI Controller
     (FSC) support did not properly check DMA length, which allowed local
     guest OS administrators to cause a denial of service (out-of-bounds
     write and QEMU process crash) via unspecified vectors, involving an SCSI
     command (bsc#980724).
   - CVE-2016-4453: The vmsvga_fifo_run function allowed local guest OS
     administrators to cause a denial of service (infinite loop and QEMU
     process crash) via a VGA command (bsc#982225).
   - CVE-2016-4454: The vmsvga_fifo_read_raw function allowed local guest OS
     administrators to obtain sensitive host memory information or cause a
     denial of service (QEMU process crash) by changing FIFO registers and
     issuing a VGA command, which triggered an out-of-bounds read
     (bsc#982224).
   - CVE-2016-4952: Out-of-bounds access issue in pvsci_ring_init_msg/data
     routines (bsc#981276).
   - CVE-2016-4962: The libxl device-handling allowed local OS guest
     administrators to cause a denial of service (resource consumption or
     management facility confusion) or gain host OS privileges by
     manipulating information in guest controlled areas of xenstore
     (bsc#979620).
   - CVE-2016-4963: The libxl device-handling allowed local guest OS users
     with access to the driver domain to cause a denial of service
     (management tool confusion) by manipulating information in the backend
     directories in xenstore (bsc#979670).
   - CVE-2016-5105: Stack information leakage while reading configuration
     (bsc#982024).
   - CVE-2016-5106: Out-of-bounds write while setting controller properties
     (bsc#982025).
   - CVE-2016-5107: Out-of-bounds read in megasas_lookup_frame() function
     (bsc#982026).
   - CVE-2016-5126: Heap-based buffer overflow in the iscsi_aio_ioctl
     function allowed local guest OS users to cause a denial of service (QEMU
     process crash) or possibly execute arbitrary code via a crafted iSCSI
     asynchronous I/O ioctl call (bsc#982286).
   - CVE-2016-5238: The get_cmd function in hw/scsi/esp.c might have allowed
     local guest OS administrators to cause a denial of service
     (out-of-bounds write and QEMU process crash) via vectors related to
     reading from the information transfer buffer in non-DMA mode
     (bsc#982960).
   - CVE-2016-5337: The megasas_ctrl_get_info function allowed local guest OS
     administrators to obtain sensitive host memory information via vectors
     related to reading device control information (bsc#983973).
   - CVE-2016-5338: The (1) esp_reg_read and (2) esp_reg_write functions
     allowed local guest OS administrators to cause a denial of service (QEMU
     process crash) or execute arbitrary code on the host via vectors related
     to the information transfer buffer (bsc#983984).
   - CVE-2016-6258: Potential privilege escalation in PV guests (XSA-182)
     (bsc#988675).
   - bsc#978295: x86 software guest page walk PS bit handling flaw (XSA-176)
   - CVE-2016-5403: virtio: unbounded memory allocation on host via guest
     leading to DoS (XSA-184) (bsc#990923)
   - CVE-2016-6351: scsi: esp: OOB write access in esp_do_dma (bsc#990843)

   These non-security issues were fixed:
   - bsc#954872: Script block-dmmd not working as expected - libxl: error:
     libxl_dm.c
   - bsc#957986: Indirect descriptors are not compatible with Amazon block
     backend
   - bsc#958848: HVM guest crash at
   /usr/src/packages/BUILD/xen-4.4.2-testing/obj/default/balloon/balloon.c:407

   - bsc#961600: Poor performance when Xen HVM domU configured with max
     memory greater than current memory
   - bsc#963161: Windows VM getting stuck during load while a VF is assigned
     to it after upgrading to latest maintenance updates
   - bsc#964427: Discarding device blocks: failed - Input/output error
   - bsc#976058: Xen error running simple HVM guest (Post Alpha 2 xen+qemu)
   - bsc#982695: qemu fails to boot HVM guest from xvda
   - bsc#986586: Out of memory (oom) during boot on "modprobe xenblk" (non
     xen kernel)
   - bsc#967630: Discrepancy in reported memory size with correction XSA-153
     for xend. Additional memory adjustment made.
   - bsc#974912: Persistent performance drop after live-migration using xend
     tool stack
   - bsc#979035: Restore xm migrate fixes for bsc#955399/ bsc#955399
   - bsc#989235: xen dom0 xm create command only searched /etc/xen instead of
     /etc/xen/vm
   - Live Migration SLES 11 SP3 to SP4 on AMD: "xc: error: Couldn't set
     extended vcpu0 info"
   - bsc#985503: Fixed vif-route
   - bsc#978413: PV guest upgrade from SLES11 SP4 to SLES 12 SP2 alpha3 failed


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-xen-12702=1

   - SUSE Linux Enterprise Server 11-SP4:

      zypper in -t patch slessp4-xen-12702=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-xen-12702=1

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


Package List:

   - SUSE Linux Enterprise Software Development Kit 11-SP4 (i586 x86_64):

      xen-devel-4.4.4_07-37.1

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

      xen-kmp-default-4.4.4_07_3.0.101_77-37.1
      xen-libs-4.4.4_07-37.1
      xen-tools-domU-4.4.4_07-37.1

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

      xen-4.4.4_07-37.1
      xen-doc-html-4.4.4_07-37.1
      xen-libs-32bit-4.4.4_07-37.1
      xen-tools-4.4.4_07-37.1

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

      xen-kmp-pae-4.4.4_07_3.0.101_77-37.1

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

      xen-debuginfo-4.4.4_07-37.1
      xen-debugsource-4.4.4_07-37.1


References:

   https://www.suse.com/security/cve/CVE-2014-3672.html
   https://www.suse.com/security/cve/CVE-2016-3158.html
   https://www.suse.com/security/cve/CVE-2016-3159.html
   https://www.suse.com/security/cve/CVE-2016-3710.html
   https://www.suse.com/security/cve/CVE-2016-3960.html
   https://www.suse.com/security/cve/CVE-2016-4001.html
   https://www.suse.com/security/cve/CVE-2016-4002.html
   https://www.suse.com/security/cve/CVE-2016-4020.html
   https://www.suse.com/security/cve/CVE-2016-4037.html
   https://www.suse.com/security/cve/CVE-2016-4439.html
   https://www.suse.com/security/cve/CVE-2016-4441.html
   https://www.suse.com/security/cve/CVE-2016-4453.html
   https://www.suse.com/security/cve/CVE-2016-4454.html
   https://www.suse.com/security/cve/CVE-2016-4952.html
   https://www.suse.com/security/cve/CVE-2016-4962.html
   https://www.suse.com/security/cve/CVE-2016-4963.html
   https://www.suse.com/security/cve/CVE-2016-5105.html
   https://www.suse.com/security/cve/CVE-2016-5106.html
   https://www.suse.com/security/cve/CVE-2016-5107.html
   https://www.suse.com/security/cve/CVE-2016-5126.html
   https://www.suse.com/security/cve/CVE-2016-5238.html
   https://www.suse.com/security/cve/CVE-2016-5337.html
   https://www.suse.com/security/cve/CVE-2016-5338.html
   https://www.suse.com/security/cve/CVE-2016-5403.html
   https://www.suse.com/security/cve/CVE-2016-6258.html
   https://www.suse.com/security/cve/CVE-2016-6351.html
   https://bugzilla.suse.com/954872
   https://bugzilla.suse.com/955399
   https://bugzilla.suse.com/957986
   https://bugzilla.suse.com/958848
   https://bugzilla.suse.com/961600
   https://bugzilla.suse.com/963161
   https://bugzilla.suse.com/964427
   https://bugzilla.suse.com/967630
   https://bugzilla.suse.com/973188
   https://bugzilla.suse.com/974038
   https://bugzilla.suse.com/974912
   https://bugzilla.suse.com/975130
   https://bugzilla.suse.com/975138
   https://bugzilla.suse.com/975907
   https://bugzilla.suse.com/976058
   https://bugzilla.suse.com/976111
   https://bugzilla.suse.com/978164
   https://bugzilla.suse.com/978295
   https://bugzilla.suse.com/978413
   https://bugzilla.suse.com/979035
   https://bugzilla.suse.com/979620
   https://bugzilla.suse.com/979670
   https://bugzilla.suse.com/980716
   https://bugzilla.suse.com/980724
   https://bugzilla.suse.com/981264
   https://bugzilla.suse.com/981276
   https://bugzilla.suse.com/982024
   https://bugzilla.suse.com/982025
   https://bugzilla.suse.com/982026
   https://bugzilla.suse.com/982224
   https://bugzilla.suse.com/982225
   https://bugzilla.suse.com/982286
   https://bugzilla.suse.com/982695
   https://bugzilla.suse.com/982960
   https://bugzilla.suse.com/983973
   https://bugzilla.suse.com/983984
   https://bugzilla.suse.com/985503
   https://bugzilla.suse.com/986586
   https://bugzilla.suse.com/988675
   https://bugzilla.suse.com/989235
   https://bugzilla.suse.com/990843
   https://bugzilla.suse.com/990923



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