SUSE SLED11 / SLES11 Security Update : xen (SUSE-SU-2016:0955-1)

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


Synopsis :

The remote SUSE host is missing one or more security updates.

Description :

xen was updated to fix 47 security issues.

These security issues were fixed :

- CVE-2013-4527: Buffer overflow in hw/timer/hpet.c might
have allowed remote attackers to execute arbitrary code
via vectors related to the number of timers
(bnc#864673).

- 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 (bnc#864678).

- 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 (bnc#864682).

- 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
(bsc#864655).

- 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 (bsc#864811).

- 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 (bsc#864391).

- 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 (bsc#864769).

- CVE-2013-4539: Multiple buffer overflows in the
tsc210x_load function in hw/input/tsc210x.c might have
allowed remote attackers to execute arbitrary code via a
crafted (1) precision, (2) nextprecision, (3) function,
or (4) nextfunction value in a savevm image
(bsc#864805).

- 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 (bsc#877642).

- CVE-2014-3640: The sosendto function in slirp/udp.c
allowed local users to cause a denial of service (NULL
pointer dereference) by sending a udp packet with a
value of 0 in the source port and address, which
triggers access of an uninitialized socket (bsc#897654).

- 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
(bsc#901508).

- 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 (bsc#902737).

- 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 (bsc#928393).

- 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 (bsc#924018).

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

- 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 (bsc#945404).

- 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 (bsc#957162).

- CVE-2015-7549: pci: NULL pointer dereference issue
(bsc#958917).

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

- CVE-2015-8504: VNC: floating point exception
(bsc#958491).

- CVE-2015-8550: Paravirtualized drivers were incautious
about shared memory contents (XSA-155) (bsc#957988).

- CVE-2015-8554: qemu-dm buffer overrun in MSI-X handling
(XSA-164) (bsc#958007).

- CVE-2015-8555: Information leak in legacy x86 FPU/XMM
initialization (XSA-165) (bsc#958009).

- CVE-2015-8558: Infinite loop in ehci_advance_state
resulted in DoS (bsc#959005).

- CVE-2015-8567: vmxnet3: host memory leakage
(bsc#959387).

- CVE-2015-8568: vmxnet3: host memory leakage
(bsc#959387).

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

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

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

- CVE-2015-8817: OOB access in address_space_rw lead to
segmentation fault (I) (bsc#969121).

- CVE-2015-8818: OOB access in address_space_rw lead to
segmentation fault (II) (bsc#969122).

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

- 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 (bsc#960861).

- CVE-2016-1571: VMX: intercept issue with INVLPG on
non-canonical address (XSA-168) (bsc#960862).

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

- CVE-2016-1922: NULL pointer dereference in vapic_write()
(bsc#962320).

- 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-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 (bsc#965315).

- CVE-2016-2271: VMX when 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 (bsc#965317).

- CVE-2016-2391: usb: multiple eof_timers in ohci module
lead to NULL pointer dereference (bsc#967013).

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

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

- CVE-2016-2841: ne2000: Infinite loop in ne2000_receive
(bsc#969350).

- XSA-166: ioreq handling possibly susceptible to multiple
read issue (bsc#958523).

These non-security issues were fixed :

- bsc#954872: script block-dmmd not working as expected

- bsc#963923: domain weights not honored when sched-credit
tslice is reduced

- bsc#959695: Missing docs for xen

- bsc#967630: Discrepancy in reported memory size with
correction XSA-153 for xend

- bsc#959928: When DomU is in state running xm domstate
returned nothing

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

See also :

https://bugzilla.suse.com/864391
https://bugzilla.suse.com/864655
https://bugzilla.suse.com/864673
https://bugzilla.suse.com/864678
https://bugzilla.suse.com/864682
https://bugzilla.suse.com/864769
https://bugzilla.suse.com/864805
https://bugzilla.suse.com/864811
https://bugzilla.suse.com/877642
https://bugzilla.suse.com/897654
https://bugzilla.suse.com/901508
https://bugzilla.suse.com/902737
https://bugzilla.suse.com/924018
https://bugzilla.suse.com/928393
https://bugzilla.suse.com/945404
https://bugzilla.suse.com/945989
https://bugzilla.suse.com/954872
https://bugzilla.suse.com/956829
https://bugzilla.suse.com/957162
https://bugzilla.suse.com/957988
https://bugzilla.suse.com/958007
https://bugzilla.suse.com/958009
https://bugzilla.suse.com/958491
https://bugzilla.suse.com/958523
https://bugzilla.suse.com/958917
https://bugzilla.suse.com/959005
https://bugzilla.suse.com/959387
https://bugzilla.suse.com/959695
https://bugzilla.suse.com/959928
https://bugzilla.suse.com/960334
https://bugzilla.suse.com/960707
https://bugzilla.suse.com/960725
https://bugzilla.suse.com/960835
https://bugzilla.suse.com/960861
https://bugzilla.suse.com/960862
https://bugzilla.suse.com/961332
https://bugzilla.suse.com/961358
https://bugzilla.suse.com/961691
https://bugzilla.suse.com/962320
https://bugzilla.suse.com/963782
https://bugzilla.suse.com/963923
https://bugzilla.suse.com/964413
https://bugzilla.suse.com/965315
https://bugzilla.suse.com/965317
https://bugzilla.suse.com/967012
https://bugzilla.suse.com/967013
https://bugzilla.suse.com/967630
https://bugzilla.suse.com/967969
https://bugzilla.suse.com/969121
https://bugzilla.suse.com/969122
https://bugzilla.suse.com/969350
https://www.suse.com/security/cve/CVE-2013-4527.html
https://www.suse.com/security/cve/CVE-2013-4529.html
https://www.suse.com/security/cve/CVE-2013-4530.html
https://www.suse.com/security/cve/CVE-2013-4533.html
https://www.suse.com/security/cve/CVE-2013-4534.html
https://www.suse.com/security/cve/CVE-2013-4537.html
https://www.suse.com/security/cve/CVE-2013-4538.html
https://www.suse.com/security/cve/CVE-2013-4539.html
https://www.suse.com/security/cve/CVE-2014-0222.html
https://www.suse.com/security/cve/CVE-2014-3640.html
https://www.suse.com/security/cve/CVE-2014-3689.html
https://www.suse.com/security/cve/CVE-2014-7815.html
https://www.suse.com/security/cve/CVE-2014-9718.html
https://www.suse.com/security/cve/CVE-2015-1779.html
https://www.suse.com/security/cve/CVE-2015-5278.html
https://www.suse.com/security/cve/CVE-2015-6855.html
https://www.suse.com/security/cve/CVE-2015-7512.html
https://www.suse.com/security/cve/CVE-2015-7549.html
https://www.suse.com/security/cve/CVE-2015-8345.html
https://www.suse.com/security/cve/CVE-2015-8504.html
https://www.suse.com/security/cve/CVE-2015-8550.html
https://www.suse.com/security/cve/CVE-2015-8554.html
https://www.suse.com/security/cve/CVE-2015-8555.html
https://www.suse.com/security/cve/CVE-2015-8558.html
https://www.suse.com/security/cve/CVE-2015-8567.html
https://www.suse.com/security/cve/CVE-2015-8568.html
https://www.suse.com/security/cve/CVE-2015-8613.html
https://www.suse.com/security/cve/CVE-2015-8619.html
https://www.suse.com/security/cve/CVE-2015-8743.html
https://www.suse.com/security/cve/CVE-2015-8744.html
https://www.suse.com/security/cve/CVE-2015-8745.html
https://www.suse.com/security/cve/CVE-2015-8817.html
https://www.suse.com/security/cve/CVE-2015-8818.html
https://www.suse.com/security/cve/CVE-2016-1568.html
https://www.suse.com/security/cve/CVE-2016-1570.html
https://www.suse.com/security/cve/CVE-2016-1571.html
https://www.suse.com/security/cve/CVE-2016-1714.html
https://www.suse.com/security/cve/CVE-2016-1922.html
https://www.suse.com/security/cve/CVE-2016-1981.html
https://www.suse.com/security/cve/CVE-2016-2198.html
https://www.suse.com/security/cve/CVE-2016-2270.html
https://www.suse.com/security/cve/CVE-2016-2271.html
https://www.suse.com/security/cve/CVE-2016-2391.html
https://www.suse.com/security/cve/CVE-2016-2392.html
https://www.suse.com/security/cve/CVE-2016-2538.html
https://www.suse.com/security/cve/CVE-2016-2841.html
http://www.nessus.org/u?a1efe178

Solution :

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-12492=1

SUSE Linux Enterprise Server 11-SP4 :

zypper in -t patch slessp4-xen-12492=1

SUSE Linux Enterprise Desktop 11-SP4 :

zypper in -t patch sledsp4-xen-12492=1

SUSE Linux Enterprise Debuginfo 11-SP4 :

zypper in -t patch dbgsp4-xen-12492=1

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

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.4
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false