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[security-announce] SUSE-SU-2016:2100-1: important: Security update for xen

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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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