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SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________

Announcement ID: SUSE-SU-2018:0834-1
Rating: important
References: #1010470 #1012382 #1045330 #1062568 #1063416
#1066001 #1067118 #1068032 #1072689 #1072865
#1074488 #1075617 #1075621 #1077560 #1078669
#1078672 #1078673 #1078674 #1080255 #1080464
#1080757 #1082299 #1083244 #1083483 #1083494
#1083640 #1084323 #1085107 #1085114 #1085279
#1085447
Cross-References: CVE-2016-7915 CVE-2017-12190 CVE-2017-13166
CVE-2017-15299 CVE-2017-16644 CVE-2017-16911
CVE-2017-16912 CVE-2017-16913 CVE-2017-16914
CVE-2017-18017 CVE-2017-18204 CVE-2017-18208
CVE-2017-18221 CVE-2018-1066 CVE-2018-1068
CVE-2018-5332 CVE-2018-5333 CVE-2018-6927
CVE-2018-7566
Affected Products:
SUSE Linux Enterprise Server 12-LTSS
SUSE Linux Enterprise Module for Public Cloud 12
______________________________________________________________________________

An update that solves 19 vulnerabilities and has 12 fixes
is now available.

Description:

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

The following security bugs were fixed:

– CVE-2018-1068: Fixed flaw in the implementation of 32-bit syscall
interface for bridging. This allowed a privileged user to arbitrarily
write to a limited range of kernel memory (bnc#1085107).
– CVE-2017-18221: The __munlock_pagevec function allowed local users to
cause a denial of service (NR_MLOCK accounting corruption) via crafted
use of mlockall and munlockall system calls (bnc#1084323).
– CVE-2018-1066: Prevent NULL pointer dereference in
fs/cifs/cifsencrypt.c:setup_ntlmv2_rsp() that allowed an attacker
controlling a CIFS server to kernel panic a client that has this server
mounted, because an empty TargetInfo field in an NTLMSSP setup
negotiation response was mishandled during session recovery
(bnc#1083640).
– CVE-2017-13166: Prevent elevation of privilege vulnerability in the
kernel v4l2 video driver (bnc#1072865).
– CVE-2017-16911: The vhci_hcd driver allowed local attackers to disclose
kernel memory addresses. Successful exploitation required that a USB
device was attached over IP (bnc#1078674).
– CVE-2017-15299: The KEYS subsystem mishandled use of add_key for a key
that already exists but is uninstantiated, which allowed local users to
cause a denial of service (NULL pointer dereference and system crash) or
possibly have unspecified other impact via a crafted system call
(bnc#1063416).
– CVE-2017-18208: The madvise_willneed function kernel allowed local users
to cause a denial of service (infinite loop) by triggering use of
MADVISE_WILLNEED for a DAX mapping (bnc#1083494).
– CVE-2018-7566: The ALSA sequencer core initializes the event pool on
demand by invoking snd_seq_pool_init() when the first write happens and
the pool is empty. A user could have reset the pool size manually via
ioctl concurrently, which may have lead UAF or out-of-bound access
(bsc#1083483).
– CVE-2017-18204: The ocfs2_setattr function allowed local users to cause
a denial of service (deadlock) via DIO requests (bnc#1083244).
– CVE-2017-16644: The hdpvr_probe function allowed local users to cause a
denial of service (improper error handling and system crash) or possibly
have unspecified other impact via a crafted USB device (bnc#1067118).
– CVE-2018-6927: The futex_requeue function allowed attackers to cause a
denial
of service (integer overflow) or possibly have unspecified other impact
by triggering a negative wake or requeue value (bnc#1080757).
– CVE-2017-16914: The “stub_send_ret_submit()” function allowed attackers
to cause a denial of service (NULL pointer dereference) via a specially
crafted USB over IP packet (bnc#1078669).
– CVE-2016-7915: The hid_input_field function allowed physically proximate
attackers to obtain sensitive information from kernel memory or cause a
denial
of service (out-of-bounds read) by connecting a device (bnc#1010470).
– CVE-2017-12190: The bio_map_user_iov and bio_unmap_user functions did
unbalanced refcounting when a SCSI I/O vector had small consecutive
buffers belonging to the same page. The bio_add_pc_page function merged
them into one, but the page reference was never dropped. This caused a
memory leak and possible system lockup (exploitable against the host OS
by a guest OS user, if a SCSI disk is passed through to a virtual
machine) due to an out-of-memory condition (bnc#1062568).
– CVE-2017-16912: The “get_pipe()” function allowed attackers to cause a
denial
of service (out-of-bounds read) via a specially crafted USB over IP
packet (bnc#1078673).
– CVE-2017-16913: The “stub_recv_cmd_submit()” function when handling
CMD_SUBMIT packets allowed attackers to cause a denial of service
(arbitrary memory allocation) via a specially crafted USB over IP packet
(bnc#1078672).
– CVE-2018-5332: The rds_message_alloc_sgs() function did not validate a
value that is used during DMA page allocation, leading to a heap-based
out-of-bounds write (related to the rds_rdma_extra_size function in
net/rds/rdma.c) (bnc#1075621).
– CVE-2018-5333: The rds_cmsg_atomic function in net/rds/rdma.c mishandled
cases where page pinning fails or an invalid address is supplied,
leading to an rds_atomic_free_op NULL pointer dereference (bnc#1075617).
– CVE-2017-18017: The tcpmss_mangle_packet function allowed remote
attackers to cause a denial of service (use-after-free and memory
corruption) or possibly have unspecified other impact by leveraging the
presence of xt_TCPMSS in an iptables action (bnc#1074488).

The following non-security bugs were fixed:

– Fix build on arm64 by defining empty gmb() (bnc#1068032).
– KEYS: do not let add_key() update an uninstantiated key (bnc#1063416).
– KEYS: fix writing past end of user-supplied buffer in keyring_read()
(bsc#1066001).
– KEYS: return full count in keyring_read() if buffer is too small
(bsc#1066001).
– include/stddef.h: Move offsetofend() from vfio.h to a generic kernel
header (bsc#1077560).
– ipc/msg: introduce msgctl(MSG_STAT_ANY) (bsc#1072689).
– ipc/sem: introduce semctl(SEM_STAT_ANY) (bsc#1072689).
– ipc/shm: introduce shmctl(SHM_STAT_ANY) (bsc#1072689).
– x86/kaiser: use trampoline stack for kernel entry (bsc#1077560)
– leds: do not overflow sysfs buffer in led_trigger_show (bsc#1080464).
– livepatch: __kgr_shadow_get_or_alloc() is local to shadow.c. Shadow
variables support (bsc#1082299).
– livepatch: introduce shadow variable API. Shadow variables support
(bsc#1082299)
– media: v4l2-compat-ioctl32.c: add missing VIDIOC_PREPARE_BUF
(bnc#1012382).
– media: v4l2-compat-ioctl32.c: avoid sizeof(type) (bnc#1012382).
– media: v4l2-compat-ioctl32.c: copy clip list in put_v4l2_window32
(bnc#1012382).
– media: v4l2-compat-ioctl32.c: copy m.userptr in put_v4l2_plane32
(bnc#1012382).
– media: v4l2-compat-ioctl32.c: do not copy back the result for certain
errors (bnc#1012382).
– media: v4l2-compat-ioctl32.c: drop pr_info for unknown buffer type
(bnc#1012382).
– media: v4l2-compat-ioctl32.c: fix the indentation (bnc#1012382).
– media: v4l2-compat-ioctl32.c: move ‘helper’ functions to
__get/put_v4l2_format32 (bnc#1012382).
– media: v4l2-compat-ioctl32: Copy v4l2_window->global_alpha (bnc#1012382).
– media: v4l2-ioctl.c: do not copy back the result for -ENOTTY
(bnc#1012382).
– netfilter: ebtables: CONFIG_COMPAT: do not trust userland offsets
(bsc#1085107).
– netfilter: ebtables: fix erroneous reject of last rule (bsc#1085107).
– packet: only call dev_add_pack() on freshly allocated fanout instances
– pipe: cap initial pipe capacity according to pipe-max-size limit
(bsc#1045330).
– x86/espfix: Fix return stack in do_double_fault() (bsc#1085279).

Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation methods
like YaST online_update or “zypper patch”.

Alternatively you can run the command listed for your product:

– SUSE Linux Enterprise Server 12-LTSS:

zypper in -t patch SUSE-SLE-SERVER-12-2018-558=1

– SUSE Linux Enterprise Module for Public Cloud 12:

zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2018-558=1

Package List:

– SUSE Linux Enterprise Server 12-LTSS (ppc64le s390x x86_64):

kernel-default-3.12.61-52.125.1
kernel-default-base-3.12.61-52.125.1
kernel-default-base-debuginfo-3.12.61-52.125.1
kernel-default-debuginfo-3.12.61-52.125.1
kernel-default-debugsource-3.12.61-52.125.1
kernel-default-devel-3.12.61-52.125.1
kernel-syms-3.12.61-52.125.1

– SUSE Linux Enterprise Server 12-LTSS (x86_64):

kernel-xen-3.12.61-52.125.1
kernel-xen-base-3.12.61-52.125.1
kernel-xen-base-debuginfo-3.12.61-52.125.1
kernel-xen-debuginfo-3.12.61-52.125.1
kernel-xen-debugsource-3.12.61-52.125.1
kernel-xen-devel-3.12.61-52.125.1
kgraft-patch-3_12_61-52_125-default-1-1.3.1
kgraft-patch-3_12_61-52_125-xen-1-1.3.1

– SUSE Linux Enterprise Server 12-LTSS (noarch):

kernel-devel-3.12.61-52.125.1
kernel-macros-3.12.61-52.125.1
kernel-source-3.12.61-52.125.1

– SUSE Linux Enterprise Server 12-LTSS (s390x):

kernel-default-man-3.12.61-52.125.1

– SUSE Linux Enterprise Module for Public Cloud 12 (x86_64):

kernel-ec2-3.12.61-52.125.1
kernel-ec2-debuginfo-3.12.61-52.125.1
kernel-ec2-debugsource-3.12.61-52.125.1
kernel-ec2-devel-3.12.61-52.125.1
kernel-ec2-extra-3.12.61-52.125.1
kernel-ec2-extra-debuginfo-3.12.61-52.125.1

References:

https://www.suse.com/security/cve/CVE-2016-7915.html
https://www.suse.com/security/cve/CVE-2017-12190.html
https://www.suse.com/security/cve/CVE-2017-13166.html
https://www.suse.com/security/cve/CVE-2017-15299.html
https://www.suse.com/security/cve/CVE-2017-16644.html
https://www.suse.com/security/cve/CVE-2017-16911.html
https://www.suse.com/security/cve/CVE-2017-16912.html
https://www.suse.com/security/cve/CVE-2017-16913.html
https://www.suse.com/security/cve/CVE-2017-16914.html
https://www.suse.com/security/cve/CVE-2017-18017.html
https://www.suse.com/security/cve/CVE-2017-18204.html
https://www.suse.com/security/cve/CVE-2017-18208.html
https://www.suse.com/security/cve/CVE-2017-18221.html
https://www.suse.com/security/cve/CVE-2018-1066.html
https://www.suse.com/security/cve/CVE-2018-1068.html
https://www.suse.com/security/cve/CVE-2018-5332.html
https://www.suse.com/security/cve/CVE-2018-5333.html
https://www.suse.com/security/cve/CVE-2018-6927.html
https://www.suse.com/security/cve/CVE-2018-7566.html
https://bugzilla.suse.com/1010470
https://bugzilla.suse.com/1012382
https://bugzilla.suse.com/1045330
https://bugzilla.suse.com/1062568
https://bugzilla.suse.com/1063416
https://bugzilla.suse.com/1066001
https://bugzilla.suse.com/1067118
https://bugzilla.suse.com/1068032
https://bugzilla.suse.com/1072689
https://bugzilla.suse.com/1072865
https://bugzilla.suse.com/1074488
https://bugzilla.suse.com/1075617
https://bugzilla.suse.com/1075621
https://bugzilla.suse.com/1077560
https://bugzilla.suse.com/1078669
https://bugzilla.suse.com/1078672
https://bugzilla.suse.com/1078673
https://bugzilla.suse.com/1078674
https://bugzilla.suse.com/1080255
https://bugzilla.suse.com/1080464
https://bugzilla.suse.com/1080757
https://bugzilla.suse.com/1082299
https://bugzilla.suse.com/1083244
https://bugzilla.suse.com/1083483
https://bugzilla.suse.com/1083494
https://bugzilla.suse.com/1083640
https://bugzilla.suse.com/1084323
https://bugzilla.suse.com/1085107
https://bugzilla.suse.com/1085114
https://bugzilla.suse.com/1085279
https://bugzilla.suse.com/1085447

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