openSUSE Security Update : xen (openSUSE-2016-439)

This script is Copyright (C) 2016 Tenable Network Security, Inc.


Synopsis :

The remote openSUSE host is missing a security update.

Description :

xen was updated to version 4.4.4 to fix 33 security issues.

These security issues were fixed :

- CVE-2016-2392: NULL pointer dereference in remote NDIS
control message handling (bsc#967012).

- CVE-2015-5239: Integer overflow in vnc_client_read() and
protocol_client_msg() (bsc#944463).

- CVE-2016-2270: Xen allowed local guest administrators to
cause a denial of service (host reboot) via vectors
related to multiple mappings of MMIO pages with
different cachability settings (boo#965315).

- CVE-2016-2538: Integer overflow in remote NDIS control
message handling (bsc#967969).

- CVE-2015-7512: Buffer overflow in the pcnet_receive
function in hw/net/pcnet.c, when a guest NIC has a
larger MTU, allowed remote attackers to cause a denial
of service (guest OS crash) or execute arbitrary code
via a large packet (boo#962360).

- CVE-2014-3689: The vmware-vga driver
(hw/display/vmware_vga.c) allowed local guest users to
write to qemu memory locations and gain privileges via
unspecified parameters related to rectangle handling
(boo#962611).

- CVE-2015-5278: Infinite loop in ne2000_receive()
function (bsc#945989).

- CVE-2016-1568: AHCI use-after-free vulnerability in aio
port commands (bsc#961332).

- CVE-2016-1981: e1000 infinite loop in start_xmit and
e1000_receive_iov routines (bsc#963782).

- CVE-2016-2198: EHCI NULL pointer dereference in
ehci_caps_write (bsc#964413).

- CVE-2015-6815: e1000: infinite loop issue (bsc#944697).

- CVE-2014-0222: Integer overflow in the qcow_open
function in block/qcow.c allowed remote attackers to
cause a denial of service (crash) via a large L2 table
in a QCOW version 1 image (boo#964925).

- CVE-2015-6855: hw/ide/core.c did not properly restrict
the commands accepted by an ATAPI device, which allowed
guest users to cause a denial of service or possibly
have unspecified other impact via certain IDE commands,
as demonstrated by a WIN_READ_NATIVE_MAX command to an
empty drive, which triggers a divide-by-zero error and
instance crash (boo#965156).

- CVE-2016-2271: VMX in using an Intel or Cyrix CPU,
allowed local HVM guest users to cause a denial of
service (guest crash) via vectors related to a
non-canonical RIP (boo#965317).

- CVE-2013-4534: Buffer overflow in hw/intc/openpic.c
allowed remote attackers to cause a denial of service or
possibly execute arbitrary code via vectors related to
IRQDest elements (boo#964452).

- CVE-2013-4537: The ssi_sd_transfer function in
hw/sd/ssi-sd.c allowed remote attackers to execute
arbitrary code via a crafted arglen value in a savevm
image (boo#962642).

- CVE-2015-1779: The VNC websocket frame decoder allowed
remote attackers to cause a denial of service (memory
and CPU consumption) via a large (1) websocket payload
or (2) HTTP headers section (boo#962632).

- CVE-2013-4530: Buffer overflow in hw/ssi/pl022.c allowed
remote attackers to cause a denial of service or
possibly execute arbitrary code via crafted tx_fifo_head
and rx_fifo_head values in a savevm image (boo#964950).

- CVE-2013-4533: Buffer overflow in the pxa2xx_ssp_load
function in hw/arm/pxa2xx.c allowed remote attackers to
cause a denial of service or possibly execute arbitrary
code via a crafted s->rx_level value in a savevm image
(boo#964644).

- CVE-2013-4539: Multiple buffer overflows in the
tsc210x_load function in hw/input/tsc210x.c allowed
remote attackers to execute arbitrary code via a crafted
(1) precision, (2) nextprecision, (3) function, or (4)
nextfunction value in a savevm image (boo#962758).

- CVE-2013-4538: Multiple buffer overflows in the
ssd0323_load function in hw/display/ssd0323.c allowed
remote attackers to cause a denial of service (memory
corruption) or possibly execute arbitrary code via
crafted (1) cmd_len, (2) row, or (3) col values; (4)
row_start and row_end values; or (5) col_star and
col_end values in a savevm image (boo#962335).

- CVE-2015-8345: eepro100: infinite loop in processing
command block list (bsc#956829).

- CVE-2015-8613: scsi: stack based buffer overflow in
megasas_ctrl_get_info (bsc#961358).

- CVE-2015-8619: Stack based OOB write in hmp_sendkey
routine (bsc#960334).

- CVE-2016-1571: The paging_invlpg function in
include/asm-x86/paging.h, when using shadow mode paging
or nested virtualization is enabled, allowed local HVM
guest users to cause a denial of service (host crash)
via a non-canonical guest address in an INVVPID
instruction, which triggers a hypervisor bug check
(boo#960862).

- CVE-2016-1570: The PV superpage functionality in
arch/x86/mm.c allowed local PV guests to obtain
sensitive information, cause a denial of service, gain
privileges, or have unspecified other impact via a
crafted page identifier (MFN) to the (1)
MMUEXT_MARK_SUPER or (2) MMUEXT_UNMARK_SUPER sub-op in
the HYPERVISOR_mmuext_op hypercall or (3) unknown
vectors related to page table updates (boo#960861).

- CVE-2014-9718: The (1) BMDMA and (2) AHCI HBA interfaces
in the IDE functionality had multiple interpretations of
a function's return value, which allowed guest OS users
to cause a host OS denial of service (memory consumption
or infinite loop, and system crash) via a PRDT with zero
complete sectors, related to the bmdma_prepare_buf and
ahci_dma_prepare_buf functions (boo#964431).

- CVE-2016-1714: nvram: OOB r/w access in processing
firmware configurations (bsc#961691).

- CVE-2015-8743: ne2000: OOB memory access in ioport r/w
functions (bsc#960725).

- CVE-2015-8744: vmxnet3: incorrect l2 header validation
leads to a crash via assert(2) call (bsc#960835).

- CVE-2015-8745: Reading IMR registers could have lead to
a crash via assert(2) call (bsc#960707).

- CVE-2014-7815: The set_pixel_format function in ui/vnc.c
allowed remote attackers to cause a denial of service
(crash) via a small bytes_per_pixel value (boo#962627).

- CVE-2013-4529: Buffer overflow in hw/pci/pcie_aer.c
allowed remote attackers to cause a denial of service
and possibly execute arbitrary code via a large log_num
value in a savevm image (boo#964929).

See also :

https://bugzilla.opensuse.org/show_bug.cgi?id=944463
https://bugzilla.opensuse.org/show_bug.cgi?id=944697
https://bugzilla.opensuse.org/show_bug.cgi?id=945989
https://bugzilla.opensuse.org/show_bug.cgi?id=956829
https://bugzilla.opensuse.org/show_bug.cgi?id=960334
https://bugzilla.opensuse.org/show_bug.cgi?id=960707
https://bugzilla.opensuse.org/show_bug.cgi?id=960725
https://bugzilla.opensuse.org/show_bug.cgi?id=960835
https://bugzilla.opensuse.org/show_bug.cgi?id=960861
https://bugzilla.opensuse.org/show_bug.cgi?id=960862
https://bugzilla.opensuse.org/show_bug.cgi?id=961332
https://bugzilla.opensuse.org/show_bug.cgi?id=961358
https://bugzilla.opensuse.org/show_bug.cgi?id=961691
https://bugzilla.opensuse.org/show_bug.cgi?id=962335
https://bugzilla.opensuse.org/show_bug.cgi?id=962360
https://bugzilla.opensuse.org/show_bug.cgi?id=962611
https://bugzilla.opensuse.org/show_bug.cgi?id=962627
https://bugzilla.opensuse.org/show_bug.cgi?id=962632
https://bugzilla.opensuse.org/show_bug.cgi?id=962642
https://bugzilla.opensuse.org/show_bug.cgi?id=962758
https://bugzilla.opensuse.org/show_bug.cgi?id=963782
https://bugzilla.opensuse.org/show_bug.cgi?id=964413
https://bugzilla.opensuse.org/show_bug.cgi?id=964431
https://bugzilla.opensuse.org/show_bug.cgi?id=964452
https://bugzilla.opensuse.org/show_bug.cgi?id=964644
https://bugzilla.opensuse.org/show_bug.cgi?id=964925
https://bugzilla.opensuse.org/show_bug.cgi?id=964929
https://bugzilla.opensuse.org/show_bug.cgi?id=964950
https://bugzilla.opensuse.org/show_bug.cgi?id=965156
https://bugzilla.opensuse.org/show_bug.cgi?id=965315
https://bugzilla.opensuse.org/show_bug.cgi?id=965317
https://bugzilla.opensuse.org/show_bug.cgi?id=967012
https://bugzilla.opensuse.org/show_bug.cgi?id=967969

Solution :

Update the affected xen packages.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)