openSUSE Security Update : the Linux Kernel (openSUSE-2016-445)

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


Synopsis :

The remote openSUSE host is missing a security update.

Description :

The openSUSE Leap 42.1 kernel was updated to 4.1.20 to receive various
security and bugfixes.

The following security bugs were fixed :

- CVE-2015-1339: A memory leak in cuse could be used to
exhaust kernel memory. (bsc#969356).

- CVE-2015-7799: The slhc_init function in
drivers/net/slip/slhc.c in the Linux kernel did not
ensure that certain slot numbers are valid, which
allowed local users to cause a denial of service (NULL
pointer dereference and system crash) via a crafted
PPPIOCSMAXCID ioctl call (bnc#949936 951638).

- CVE-2015-7872: The key_gc_unused_keys function in
security/keys/gc.c in the Linux kernel allowed local
users to cause a denial of service (OOPS) via crafted
keyctl commands (bnc#951440).

- CVE-2015-7884: The vivid_fb_ioctl function in
drivers/media/platform/vivid/vivid-osd.c in the Linux
kernel did not initialize a certain structure member,
which allowed local users to obtain sensitive
information from kernel memory via a crafted application
(bnc#951626).

- CVE-2015-8104: The KVM subsystem in the Linux kernel
allowed guest OS users to cause a denial of service
(host OS panic or hang) by triggering many #DB (aka
Debug) exceptions, related to svm.c (bnc#954404).

- 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#959709).

- CVE-2015-8767: net/sctp/sm_sideeffect.c in the Linux
kernel did not properly manage the relationship between
a lock and a socket, which allowed local users to cause
a denial of service (deadlock) via a crafted sctp_accept
call. (bsc#961509)

- CVE-2015-8785: The fuse_fill_write_pages function in
fs/fuse/file.c in the Linux kernel allowed local users
to cause a denial of service (infinite loop) via a
writev system call that triggers a zero length for the
first segment of an iov (bnc#963765).

- CVE-2015-8787: The nf_nat_redirect_ipv4 function in
net/netfilter/nf_nat_redirect.c in the Linux kernel
allowed remote attackers to cause a denial of service
(NULL pointer dereference and system crash) or possibly
have unspecified other impact by sending certain IPv4
packets to an incompletely configured interface, a
related issue to CVE-2003-1604 (bnc#963931).

- 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-2016-0723: Race condition in the tty_ioctl function
in drivers/tty/tty_io.c in the Linux kernel allowed
local users to obtain sensitive information from kernel
memory or cause a denial of service (use-after-free and
system crash) by making a TIOCGETD ioctl call during
processing of a TIOCSETD ioctl call (bnc#961500).

- CVE-2016-2069: When Linux invalidated a paging structure
that is not in use locally, it could, in principle, race
against another CPU that is switching to a process that
uses the paging structure in question. (bsc#963767)

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

- CVE-2016-2383: Incorrect branch fixups for eBPF allow
arbitrary read of kernel memory. (bsc#966684)

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

The following non-security bugs were fixed :

- alsa: hda - Apply clock gate workaround to Skylake, too
(bsc#966137).

- alsa: hda - disable dynamic clock gating on Broxton
before reset (bsc#966137).

- alsa: hda - Fix playback noise with 24/32 bit sample
size on BXT (bsc#966137).

- alsa: seq: Fix double port list deletion (bsc#968018).

- alsa: seq: Fix leak of pool buffer at concurrent writes
(bsc#968018).

- alsa: timer: Fix race between stop and interrupt
(bsc#968018).

- alsa: timer: Fix wrong instance passed to slave
callbacks (bsc#968018).

- arm64: Add workaround for Cavium erratum 27456.

- arm64: Backport arm64 patches from SLE12-SP1-ARM

- btrfs: teach backref walking about backrefs with
underflowed (bsc#966259).

- cgroup kabi fix for 4.1.19.

- config: Disable CONFIG_DDR. CONFIG_DDR is selected
automatically by drivers which need it.

- config: Disable MFD_TPS65218 The TPS65218 is a power
management IC for 32-bit ARM systems.

- config: Modularize NF_REJECT_IPV4/V6 There is no reason
why these helper modules should be built-in when the
rest of netfilter is built as modules.

- config: Update x86 config files: Enable Intel RAPL This
driver is useful when power caping is needed. It was
enabled in the SLE kernel 2 years ago.

- Delete patches.fixes/bridge-module-get-put.patch. As
discussed in
http://lists.opensuse.org/opensuse-kernel/2015-11/msg000
46.html

- drm/i915: Fix double unref in intelfb_alloc failure path
(boo#962866, boo#966179).

- drm/i915: Fix failure paths around initial fbdev
allocation (boo#962866, boo#966179).

- drm/i915: Pin the ifbdev for the info->system_base GGTT
mmapping (boo#962866, boo#966179).

- e1000e: Avoid divide by zero error (bsc#965125).

- e1000e: fix division by zero on jumbo MTUs (bsc#965125).

- e1000e: fix systim issues (bsc#965125).

- e1000e: Fix tight loop implementation of systime read
algorithm (bsc#965125).

- ibmvnic: Fix ibmvnic_capability struct.

- intel: Disable Skylake support in intel_idle driver
again (boo#969582) This turned out to bring a regression
on some machines, unfortunately. It should be addressed
in the upstream at first.

- intel_idle: allow idle states to be freeze-mode specific
(boo#969582).

- intel_idle: Skylake Client Support (boo#969582).

- intel_idle: Skylake Client Support - updated
(boo#969582).

- libceph: fix scatterlist last_piece calculation
(bsc#963746).

- lio: Add LIO clustered RBD backend (fate#318836)

- net kabi fixes for 4.1.19.

- numa patches updated to v15

- ocfs2: fix dlmglue deadlock issue(bnc#962257)

- pci: thunder: Add driver for ThunderX-pass{1,2} on-chip
devices

- pci: thunder: Add PCIe host driver for ThunderX
processors

- sd: Optimal I/O size is in bytes, not sectors
(boo#961263).

- sd: Reject optimal transfer length smaller than page
size (boo#961263).

- series.conf: move cxgb3 patch to network drivers section

See also :

http://lists.opensuse.org/opensuse-kernel/2015-11/msg00046.html
https://bugzilla.opensuse.org/show_bug.cgi?id=814440
https://bugzilla.opensuse.org/show_bug.cgi?id=884701
https://bugzilla.opensuse.org/show_bug.cgi?id=949936
https://bugzilla.opensuse.org/show_bug.cgi?id=951440
https://bugzilla.opensuse.org/show_bug.cgi?id=951542
https://bugzilla.opensuse.org/show_bug.cgi?id=951626
https://bugzilla.opensuse.org/show_bug.cgi?id=951638
https://bugzilla.opensuse.org/show_bug.cgi?id=953527
https://bugzilla.opensuse.org/show_bug.cgi?id=954018
https://bugzilla.opensuse.org/show_bug.cgi?id=954404
https://bugzilla.opensuse.org/show_bug.cgi?id=954405
https://bugzilla.opensuse.org/show_bug.cgi?id=954876
https://bugzilla.opensuse.org/show_bug.cgi?id=958439
https://bugzilla.opensuse.org/show_bug.cgi?id=958463
https://bugzilla.opensuse.org/show_bug.cgi?id=958504
https://bugzilla.opensuse.org/show_bug.cgi?id=959709
https://bugzilla.opensuse.org/show_bug.cgi?id=960561
https://bugzilla.opensuse.org/show_bug.cgi?id=960563
https://bugzilla.opensuse.org/show_bug.cgi?id=960710
https://bugzilla.opensuse.org/show_bug.cgi?id=961263
https://bugzilla.opensuse.org/show_bug.cgi?id=961500
https://bugzilla.opensuse.org/show_bug.cgi?id=961509
https://bugzilla.opensuse.org/show_bug.cgi?id=962257
https://bugzilla.opensuse.org/show_bug.cgi?id=962866
https://bugzilla.opensuse.org/show_bug.cgi?id=962977
https://bugzilla.opensuse.org/show_bug.cgi?id=963746
https://bugzilla.opensuse.org/show_bug.cgi?id=963765
https://bugzilla.opensuse.org/show_bug.cgi?id=963767
https://bugzilla.opensuse.org/show_bug.cgi?id=963931
https://bugzilla.opensuse.org/show_bug.cgi?id=965125
https://bugzilla.opensuse.org/show_bug.cgi?id=966137
https://bugzilla.opensuse.org/show_bug.cgi?id=966179
https://bugzilla.opensuse.org/show_bug.cgi?id=966259
https://bugzilla.opensuse.org/show_bug.cgi?id=966437
https://bugzilla.opensuse.org/show_bug.cgi?id=966684
https://bugzilla.opensuse.org/show_bug.cgi?id=966693
https://bugzilla.opensuse.org/show_bug.cgi?id=968018
https://bugzilla.opensuse.org/show_bug.cgi?id=969356
https://bugzilla.opensuse.org/show_bug.cgi?id=969582
https://bugzilla.opensuse.org/show_bug.cgi?id=970845
https://bugzilla.opensuse.org/show_bug.cgi?id=971125

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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