openSUSE Security Update : the Linux Kernel (openSUSE-2016-1431)

This script is Copyright (C) 2016-2017 Tenable Network Security, Inc.


Synopsis :

The remote openSUSE host is missing a security update.

Description :

The openSUSE 13.2 kernel was updated to receive various security and
bugfixes.

The following security bugs were fixed :

- CVE-2015-8962: Double free vulnerability in the
sg_common_write function in drivers/scsi/sg.c in the
Linux kernel allowed local users to gain privileges or
cause a denial of service (memory corruption and system
crash) by detaching a device during an SG_IO ioctl call
(bnc#1010501).

- CVE-2015-8963: Race condition in kernel/events/core.c in
the Linux kernel allowed local users to gain privileges
or cause a denial of service (use-after-free) by
leveraging incorrect handling of an swevent data
structure during a CPU unplug operation (bnc#1010502).

- CVE-2016-7042: The proc_keys_show function in
security/keys/proc.c in the Linux kernel through 4.8.2,
when the GNU Compiler Collection (gcc) stack protector
is enabled, uses an incorrect buffer size for certain
timeout data, which allowed local users to cause a
denial of service (stack memory corruption and panic) by
reading the /proc/keys file (bnc#1004517).

- CVE-2016-7910: Use-after-free vulnerability in the
disk_seqf_stop function in block/genhd.c in the Linux
kernel allowed local users to gain privileges by
leveraging the execution of a certain stop operation
even if the corresponding start operation had failed
(bnc#1010716).

- CVE-2016-7911: Race condition in the get_task_ioprio
function in block/ioprio.c in the Linux kernel allowed
local users to gain privileges or cause a denial of
service (use-after-free) via a crafted ioprio_get system
call (bnc#1010711).

- CVE-2016-7913: The xc2028_set_config function in
drivers/media/tuners/tuner-xc2028.c in the Linux kernel
allowed local users to gain privileges or cause a denial
of service (use-after-free) via vectors involving
omission of the firmware name from a certain data
structure (bnc#1010478).

- CVE-2016-7914: The assoc_array_insert_into_terminal_node
function in lib/assoc_array.c in the Linux kernel did
not check whether a slot is a leaf, which allowed local
users to obtain sensitive information from kernel memory
or cause a denial of service (invalid pointer
dereference and out-of-bounds read) via an application
that uses associative-array data structures, as
demonstrated by the keyutils test suite (bnc#1010475).

- CVE-2016-7916: Race condition in the environ_read
function in fs/proc/base.c in the Linux kernel allowed
local users to obtain sensitive information from kernel
memory by reading a /proc/*/environ file during a
process-setup time interval in which
environment-variable copying is incomplete
(bnc#1010467).

- CVE-2016-8633: drivers/firewire/net.c in the Linux
kernel before 4.8.7, in certain unusual hardware
configurations, allowed remote attackers to execute
arbitrary code via crafted fragmented packets
(bnc#1008833).

- CVE-2016-8646: The hash_accept function in
crypto/algif_hash.c in the Linux kernel allowed local
users to cause a denial of service (OOPS) by attempting
to trigger use of in-kernel hash algorithms for a socket
that has received zero bytes of data (bnc#1010150).

- CVE-2016-8655: A race condition in the af_packet
packet_set_ring function could be used by local
attackers to crash the kernel or gain privileges
(bsc#1012754).

- CVE-2016-9555: The sctp_sf_ootb function in
net/sctp/sm_statefuns.c in the Linux kernel lacks
chunk-length checking for the first chunk, which allowed
remote attackers to cause a denial of service
(out-of-bounds slab access) or possibly have unspecified
other impact via crafted SCTP data (bnc#1011685).

The following non-security bugs were fixed :

- bna: Add synchronization for tx ring (bsc#993739).

- bonding: set carrier off for devices created through
netlink (bsc#999577).

- btrfs: fix extent tree corruption due to relocation
(bsc#990384).

- introduce NETIF_F_GSO_ENCAP_ALL helper mask
(bsc#1001486).

- ipv6: send NEWLINK on RA managed/otherconf changes
(bsc#934067).

- ipv6: send only one NEWLINK when RA causes changes
(bsc#934067).

- tunnels: Remove encapsulation offloads on decap
(bsc#1001486).

- usbhid: add ATEN CS962 to list of quirky devices
(bsc#1007615).

- vmxnet3: Wake queue from reset work (bsc#999907).

See also :

https://bugzilla.opensuse.org/show_bug.cgi?id=1001486
https://bugzilla.opensuse.org/show_bug.cgi?id=1004517
https://bugzilla.opensuse.org/show_bug.cgi?id=1007615
https://bugzilla.opensuse.org/show_bug.cgi?id=1008833
https://bugzilla.opensuse.org/show_bug.cgi?id=1010040
https://bugzilla.opensuse.org/show_bug.cgi?id=1010150
https://bugzilla.opensuse.org/show_bug.cgi?id=1010467
https://bugzilla.opensuse.org/show_bug.cgi?id=1010475
https://bugzilla.opensuse.org/show_bug.cgi?id=1010478
https://bugzilla.opensuse.org/show_bug.cgi?id=1010501
https://bugzilla.opensuse.org/show_bug.cgi?id=1010502
https://bugzilla.opensuse.org/show_bug.cgi?id=1010711
https://bugzilla.opensuse.org/show_bug.cgi?id=1010716
https://bugzilla.opensuse.org/show_bug.cgi?id=1011685
https://bugzilla.opensuse.org/show_bug.cgi?id=1012754
https://bugzilla.opensuse.org/show_bug.cgi?id=934067
https://bugzilla.opensuse.org/show_bug.cgi?id=990384
https://bugzilla.opensuse.org/show_bug.cgi?id=993739
https://bugzilla.opensuse.org/show_bug.cgi?id=999577
https://bugzilla.opensuse.org/show_bug.cgi?id=999907

Solution :

Update the affected the Linux Kernel packages.

Risk factor :

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

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