SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2016:1019-1)

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

Synopsis :

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

Description :

The SUSE Linux Enterprise 12 SP1 kernel was updated to 3.12.57 to
receive various security and bugfixes.

The following security bugs were fixed :

- CVE-2015-8812: A flaw was found in the CXGB3 kernel
driver when the network was considered congested. The
kernel would incorrectly misinterpret the congestion as
an error condition and incorrectly free/clean up the
skb. When the device would then send the skb's queued,
these structures would be referenced and may panic the
system or allow an attacker to escalate privileges in a
use-after-free scenario. (bsc#966437)

- CVE-2015-8816: A malicious USB device could cause a
kernel crash in the USB hub driver. (bnc#968010).

- CVE-2016-2143: On zSeries a fork of a large process
could have caused memory corruption due to incorrect
page table handling. (bnc#970504)

- CVE-2016-2184: A malicious USB device could cause a
kernel crash in the alsa usb-audio driver. (bsc#971125).

- CVE-2016-2384: A malicious USB device could cause a
kernel crash in the alsa usb-audio driver. (bsc#966693)

- CVE-2016-2782: A malicious USB device could cause a
kernel crash in the usb visor driver. (bnc#968670).

- CVE-2016-3139: A malicious USB device could cause a
kernel crash in the wacom driver. (bnc#970909).

- CVE-2016-3156: Removal of ipv4 interfaces with a large
number of IP addresses was taking very long.

- CVE-2015-8709: kernel/ptrace.c in the Linux kernel
mishandled uid and gid mappings, which allowed local
users to gain privileges by establishing a user
namespace, waiting for a root process to enter that
namespace with an unsafe uid or gid, and then using the
ptrace system call. NOTE: the vendor states 'there is no
kernel bug here (bnc#960561).

The following non-security bugs were fixed :

- aacraid: Refresh

- acpi: processor: Introduce apic_id in struct processor
to save parsed APIC id (bsc#959463).

- alsa: rawmidi: Make snd_rawmidi_transmit() race-free

- alsa: seq: Fix leak of pool buffer at concurrent writes

- btrfs: Account data space in more proper timing:

- btrfs: Add handler for invalidate page (bsc#963193).

- btrfs: check prepare_uptodate_page() error code earlier

- btrfs: delayed_ref: Add new function to record reserved
space into delayed ref (bsc#963193).

- btrfs: delayed_ref: release and free qgroup reserved at
proper timing (bsc#963193).

- btrfs: extent_io: Introduce needed structure for
recoding set/clear bits (bsc#963193).

- btrfs: extent_io: Introduce new function
clear_record_extent_bits() (bsc#963193).

- btrfs: extent_io: Introduce new function
set_record_extent_bits (bsc#963193).

- btrfs: extent-tree: Add new version of
btrfs_check_data_free_space and
btrfs_free_reserved_data_space (bsc#963193).

- btrfs: extent-tree: Add new version of
btrfs_delalloc_reserve/release_space (bsc#963193).

- btrfs: extent-tree: Switch to new check_data_free_space
and free_reserved_data_space (bsc#963193).

- btrfs: extent-tree: Switch to new delalloc space reserve
and release (bsc#963193).

- btrfs: fallocate: Added a prerequisite patch and rebased
the chunks that had previously been taken from it. Fixes
a warning we had in fs/btrfs/file.c.

- btrfs: fallocate: Add support to accurate qgroup reserve

- btrfs: fix invalid page accesses in extent_same (dedup)
ioctl (bnc#968230).

- btrfs: fix page reading in extent_same ioctl leading to
csum errors (bnc#968230).

- btrfs: fix warning in backref walking (bnc#966278).

- btrfs: qgroup: Add handler for NOCOW and inline

- btrfs: qgroup: Add new trace point for qgroup data
reserve (bsc#963193).

- btrfs: qgroup: Avoid calling
btrfs_free_reserved_data_space in clear_bit_hook

- btrfs: qgroup: Check if qgroup reserved space leaked

- btrfs: qgroup: Cleanup old inaccurate facilities

- btrfs: qgroup: Fix a race in delayed_ref which leads to
abort trans (bsc#963193).

- btrfs: qgroup: Fix a rebase bug which will cause qgroup
double free (bsc#963193).

- btrfs: qgroup: Fix dead judgement on
qgroup_rescan_leaf() return value (bsc#969439).

- btrfs: qgroup: Introduce btrfs_qgroup_reserve_data
function (bsc#963193).

- btrfs: qgroup: Introduce functions to release/free
qgroup reserve data space (bsc#963193).

- btrfs: qgroup: Introduce new functions to reserve/free
metadata (bsc#963193).

- btrfs: qgroup: Use new metadata reservation

- dcache: use IS_ROOT to decide where dentry is hashed

- dmapi: fix dm_open_by_handle_rvp taking an extra ref to
mnt (bsc#967292).

- drivers/base/memory.c: fix kernel warning during memory
hotplug on ppc64 (bsc#963827).

- drivers: hv: Allow for MMIO claims that span ACPI _CRS
records (bnc#965924).

- drivers: hv: Define the channel type for Hyper-V PCI
Express pass-through (bnc#965924).

- drivers: hv: Export a function that maps Linux CPU num
onto Hyper-V proc num (bnc#965924).

- drivers: hv: Export the API to invoke a hypercall on
Hyper-V (bnc#965924).

- drivers: hv: kvp: fix IP Failover.

- drivers: pci:hv: New paravirtual PCI front-end for
Hyper-V VMs (bnc#965924).

- drivers: xen-blkfront: only talk_to_blkback() when in
XenbusStateInitialising (bsc#957986 fate#320625).

- drivers: xen-blkfront: move talk_to_blkback to a more
suitable place (bsc#957986 fate#320625).

- e1000e: Avoid divide by zero error (bsc#968643).

- e1000e: fix division by zero on jumbo MTUs (bsc#968643).

- e1000e: Fix tight loop implementation of systime read
algorithm (bsc#968643).

- efi: Ignore efivar_validate kabi failures -- it's an EFI
internal function.

- fix: print ext4 mountopt data_err=abort correctly

- Fix problem with setting ACL on directories

- fs/proc_namespace.c: simplify testing nsp and
nsp->mnt_ns (bug#963960).

- futex: Drop refcount if requeue_pi() acquired the
rtmutex (bug#960174).

- hv: Lock access to hyperv_mmio resource tree

- hv: Make a function to free mmio regions through vmbus

- hv: Reverse order of resources in hyperv_mmio

- hv: Track allocations of children of hv_vmbus in private
resource tree (bnc#965924).

- hv: Use new vmbus_mmio_free() from client drivers

- hwmon: (coretemp) Increase maximum core to 128

- ibmvnic: Fix ibmvnic_capability struct (fate#320253).

- intel_pstate: Use del_timer_sync in
intel_pstate_cpu_stop (bsc#967650).

- ipv6: mld: fix add_grhead skb_over_panic for devs with
large MTUs (bsc#956852).

- kabi: Preserve checksum of kvm_x86_ops (bsc#969112).

- kabi: protect struct acpi_processor signature

- kgr: fix reversion of a patch already reverted by a
replace_all patch (fate#313296).

- kvm: SVM: add rdmsr support for AMD event registers

- kvm: x86: Check dest_map->vector to match eoi signals
for rtc (bsc#966471).

- kvm: x86: Convert ioapic->rtc_status.dest_map to a
struct (bsc#966471).

- kvm: x86: store IOAPIC-handled vectors in each VCPU

- kvm: x86: Track irq vectors in
ioapic->rtc_status.dest_map (bsc#966471).

- libata: Revert 'libata: Align ata_device's id on a

- libceph: fix scatterlist last_piece calculation

- lpfc: Fix kmalloc overflow in LPFC driver at large core
count (bsc#969690).

- memcg: do not hang on OOM when killed by userspace OOM
access to memory reserves (bnc#969571).

- mld, igmp: Fix reserved tailroom calculation

- namespaces: Re-introduce task_nsproxy() helper

- namespaces: Use task_lock and not rcu to protect nsproxy

- net: core: Correct an over-stringent device loop
detection (bsc#945219).

- net: irda: Fix use-after-free in irtty_open()

- net: Revert 'net/ipv6: add sysctl option

- nfs4: treat lock owners as opaque values (bnc#968141).

- nfs: Background flush should not be low priority

- nfsd: fix nfsd_setattr return code for HSM (bsc#969992).

- nfs: do not use STABLE writes during writeback

- nfs: Fix handling of re-write-before-commit for mmapped
NFS pages (bsc#964201).

- nvme: default to 4k device page size (bsc#967047).

- nvme: special case AEN requests (bsc#965087).

- pci: Add global pci_lock_rescan_remove() (bnc#965924).

- pci: allow access to VPD attributes with size 0

- pciback: Check PF instead of VF for PCI_COMMAND_MEMORY.

- pciback: Save the number of MSI-X entries to be copied

- pci: Blacklist vpd access for buggy devices

- pci: Determine actual VPD size on first access

- pci: Export symbols required for loadable host driver
modules (bnc#965924).

- pci: pciehp: Disable link notification across slot reset

- pci: pciehp: Do not check adapter or latch status while
disabling (bsc#967651).

- pci: pciehp: Do not disable the link permanently during
removal (bsc#967651).

- pci: pciehp: Ensure very fast hotplug events are also
processed (bsc#967651).

- pci: Update VPD definitions (bsc#959146).

- perf, nmi: Fix unknown NMI warning (bsc#968512).

- proc: Fix ptrace-based permission checks for accessing
task maps.

- pv6: Revert 'ipv6: tcp: add rcu locking in
tcp_v6_send_synack()' (bnc#961257).

- qla2xxx: Remove unavailable firmware files (bsc#943645).

- rbd: do not log miscompare as an error (bsc#970062).

- resources: Set type in __request_region() (bnc#965924).

- rpm/ Sync the main and -base
package dependencies (bsc#965830#c51).

- rpm/kernel-module-subpackage: Fix obsoleting dropped
flavors (bsc#968253)

- scsi_dh_alua: Do not block request queue if workqueue is
active (bsc#960458).

- scsi: fix soft lockup in scsi_remove_target() on module
removal (bsc#965199).

- scsi: proper state checking and module refcount handling
in scsi_device_get (boo#966831).

- series.conf: add section comments

- supported.conf: Add e1000e (emulated by VMware) to -base

- supported.conf: Add Hyper-V modules to -base

- supported.conf: Add isofs to -base (bsc#969655).

- supported.conf: Add more qemu device driver (bsc#968234)

- supported.conf: Add mptspi and mptsas to -base

- supported.conf: Add the qemu scsi driver (sym53c8xx) to
-base (bsc#967802)

- supported.conf: Add tulip to -base for Hyper-V

- supported.conf: Add virtio-rng (bsc#966026)

- supported.conf: Add xen-blkfront.

- supported.conf: Add xfs to -base (bsc#965891)

- supported.conf: Fix usb-common path usb-common moved to
its own subdirectory in kernel v3.16, and we backported
that change to SLE12.

- tcp: Restore RFC5961-compliant behavior for SYN packets

- usb: Quiet down false peer failure messages

- x86: export x86_msi (bnc#965924).

- xen: Add /etc/modprobe.d/50-xen.conf selecting Xen
frontend driver implementation (bsc#957986, bsc#956084,

- xen-blkfront: allow building in our Xen environment
(bsc#957986 fate#320625).

- xen, blkfront: factor out flush-related checks from
do_blkif_request() (bsc#957986 fate#320625).

- xen-blkfront: fix accounting of reqs when migrating
(bsc#957986 fate#320625).

- xen/blkfront: Fix crash if backend does not follow the
right states (bsc#957986 fate#320625).

- xen-blkfront: improve aproximation of required grants
per request (bsc#957986 fate#320625).

- xen/blkfront: improve protection against issuing
unsupported REQ_FUA (bsc#957986 fate#320625).

- xen/blkfront: remove redundant flush_op (bsc#957986

- xen-blkfront: remove type check from
blkfront_setup_discard (bsc#957986 fate#320625).

- xen-blkfront: Silence pfn maybe-uninitialized warning
(bsc#957986 fate#320625).

- xen: block: xen-blkfront: Fix possible NULL ptr
dereference (bsc#957986 fate#320625).

- xen: Refresh patches.xen/xen3-patch-2.6.33 (detect NX
support early).

- xen: Refresh patches.xen/xen-vscsi-large-requests

- xen: Update Xen config files (enable upstream block

- xen: Update Xen patches to 3.12.55.

- xen-vscsi-large-requests: Fix resource collision for
racing request maps and unmaps (bsc#966094).

- xfs/dmapi: drop lock over synchronous XFS_SEND_DATA
events (bsc#969993).

- xfs/dmapi: propertly send postcreate event (bsc#967299).

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 :

Solution :

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Workstation Extension 12-SP1 :

zypper in -t patch SUSE-SLE-WE-12-SP1-2016-600=1

SUSE Linux Enterprise Software Development Kit 12-SP1 :

zypper in -t patch SUSE-SLE-SDK-12-SP1-2016-600=1

SUSE Linux Enterprise Server 12-SP1 :

zypper in -t patch SUSE-SLE-SERVER-12-SP1-2016-600=1

SUSE Linux Enterprise Module for Public Cloud 12 :

zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2016-600=1

SUSE Linux Enterprise Live Patching 12 :

zypper in -t patch SUSE-SLE-Live-Patching-12-2016-600=1

SUSE Linux Enterprise Desktop 12-SP1 :

zypper in -t patch SUSE-SLE-DESKTOP-12-SP1-2016-600=1

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

Risk factor :

Critical / CVSS Base Score : 10.0
CVSS Temporal Score : 7.8
Public Exploit Available : true

Family: SuSE Local Security Checks

Nessus Plugin ID: 90531 ()

Bugtraq ID:

CVE ID: CVE-2015-8709

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