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====================================================================                   
Red Hat Security Advisory

Synopsis:          Important: kernel security, bug fix, and enhancement update
Advisory ID:       RHSA-2019:0512-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:0512
Issue date:        2019-03-13
CVE Names:         CVE-2018-9568 CVE-2018-17972 CVE-2018-18445
====================================================================
1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security Fix(es):

* kernel: Memory corruption due to incorrect socket cloning (CVE-2018-9568)

* kernel: Unprivileged users able to inspect kernel stacks of arbitrary
tasks (CVE-2018-17972)

* kernel: Faulty computation of numberic bounds in the BPF verifier
(CVE-2018-18445)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

Bug Fix(es) and Enhancement(s):

* kernel fuse invalidates cached attributes during reads (BZ#1657921)

* [NetApp-FC-NVMe] RHEL7.6: nvme reset gets hung indefinitely (BZ#1659937)

* Memory reclaim deadlock calling __sock_create() after
memalloc_noio_save() (BZ#1660392)

* hardened usercopy is causing crash (BZ#1660815)

* Backport: xfrm: policy: init locks early (BZ#1660887)

* AWS m5 instance type loses NVMe mounted volumes [was: Unable to Mount
StatefulSet PV in AWS EBS] (BZ#1661947)

* RHEL 7.6 running on a VirtualBox guest with a GUI has a mouse problem
(BZ#1662848)

* Kernel bug report in cgroups on heavily contested 3.10 node (BZ#1663114)

* [PCIe] SHPC probe crash on Non-ACPI/Non-SHPC ports (BZ#1663241)

* [Cavium 7.7 Feat] qla2xxx: Update to latest upstream. (BZ#1663508)

* Regression in lpfc and the CNE1000 (BE2 FCoE) adapters that no longer
initialize (BZ#1664067)

* [csiostor] call trace after command: modprobe csiostor (BZ#1665370)

* libceph: fall back to sendmsg for slab pages (BZ#1665814)

* Deadlock between stop_one_cpu_nowait() and stop_two_cpus() (BZ#1667328)

* Soft lockups occur when the sd driver passes a device size of 1 sector to
string_get_size() (BZ#1667989)

* [RHEL7.7] BUG: unable to handle kernel paging request at ffffffffffffffff
(BZ#1668208)

* RHEL7.6 - powerpc/pseries: Disable CPU hotplug across migrations /
powerpc/rtas: Fix a potential race between CPU-Offline & Migration (LPM)
(BZ#1669044)

* blk-mq: fix corruption with direct issue (BZ#1670511)

* [RHEL7][patch] iscsi driver can block reboot/shutdown (BZ#1670680)

* [DELL EMC 7.6 BUG] Unable to create-namespace over Dell NVDIMM-N
(BZ#1671743)

* efi_bgrt_init fails to ioremap error during boot (BZ#1671745)

* Unable to mount a share on kernel- 3.10.0-957.el7. The share can be
mounted on kernel-3.10.0-862.14.4.el7 (BZ#1672448)

* System crash with RIP nfs_readpage_async+0x43 -- BUG: unable to handle
kernel NULL pointer dereference (BZ#1672510)

Users of kernel are advised to upgrade to these updated packages, which fix
these bugs and add this enhancement.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

5. Bugs fixed (https://bugzilla.redhat.com/):

1636349 - CVE-2018-17972 kernel: Unprivileged users able to inspect kernel stacks of arbitrary tasks
1640596 - CVE-2018-18445 kernel: Faulty computation of numberic bounds in the BPF verifier
1655904 - CVE-2018-9568 kernel: Memory corruption due to incorrect socket cloning

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
kernel-3.10.0-957.10.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-957.10.1.el7.noarch.rpm
kernel-doc-3.10.0-957.10.1.el7.noarch.rpm

x86_64:
bpftool-3.10.0-957.10.1.el7.x86_64.rpm
kernel-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debug-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.10.1.el7.x86_64.rpm
kernel-devel-3.10.0-957.10.1.el7.x86_64.rpm
kernel-headers-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-957.10.1.el7.x86_64.rpm
perf-3.10.0-957.10.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
python-perf-3.10.0-957.10.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
kernel-debug-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-957.10.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
kernel-3.10.0-957.10.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-957.10.1.el7.noarch.rpm
kernel-doc-3.10.0-957.10.1.el7.noarch.rpm

x86_64:
bpftool-3.10.0-957.10.1.el7.x86_64.rpm
kernel-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debug-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.10.1.el7.x86_64.rpm
kernel-devel-3.10.0-957.10.1.el7.x86_64.rpm
kernel-headers-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-957.10.1.el7.x86_64.rpm
perf-3.10.0-957.10.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
python-perf-3.10.0-957.10.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
kernel-debug-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-957.10.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
kernel-3.10.0-957.10.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-957.10.1.el7.noarch.rpm
kernel-doc-3.10.0-957.10.1.el7.noarch.rpm

ppc64:
kernel-3.10.0-957.10.1.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-957.10.1.el7.ppc64.rpm
kernel-debug-3.10.0-957.10.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-957.10.1.el7.ppc64.rpm
kernel-debug-devel-3.10.0-957.10.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-957.10.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-957.10.1.el7.ppc64.rpm
kernel-devel-3.10.0-957.10.1.el7.ppc64.rpm
kernel-headers-3.10.0-957.10.1.el7.ppc64.rpm
kernel-tools-3.10.0-957.10.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-957.10.1.el7.ppc64.rpm
kernel-tools-libs-3.10.0-957.10.1.el7.ppc64.rpm
perf-3.10.0-957.10.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-957.10.1.el7.ppc64.rpm
python-perf-3.10.0-957.10.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-957.10.1.el7.ppc64.rpm

ppc64le:
kernel-3.10.0-957.10.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-957.10.1.el7.ppc64le.rpm
kernel-debug-3.10.0-957.10.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-957.10.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-957.10.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-957.10.1.el7.ppc64le.rpm
kernel-devel-3.10.0-957.10.1.el7.ppc64le.rpm
kernel-headers-3.10.0-957.10.1.el7.ppc64le.rpm
kernel-tools-3.10.0-957.10.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-957.10.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-957.10.1.el7.ppc64le.rpm
perf-3.10.0-957.10.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-957.10.1.el7.ppc64le.rpm
python-perf-3.10.0-957.10.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-957.10.1.el7.ppc64le.rpm

s390x:
kernel-3.10.0-957.10.1.el7.s390x.rpm
kernel-debug-3.10.0-957.10.1.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-957.10.1.el7.s390x.rpm
kernel-debug-devel-3.10.0-957.10.1.el7.s390x.rpm
kernel-debuginfo-3.10.0-957.10.1.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-957.10.1.el7.s390x.rpm
kernel-devel-3.10.0-957.10.1.el7.s390x.rpm
kernel-headers-3.10.0-957.10.1.el7.s390x.rpm
kernel-kdump-3.10.0-957.10.1.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-957.10.1.el7.s390x.rpm
kernel-kdump-devel-3.10.0-957.10.1.el7.s390x.rpm
perf-3.10.0-957.10.1.el7.s390x.rpm
perf-debuginfo-3.10.0-957.10.1.el7.s390x.rpm
python-perf-3.10.0-957.10.1.el7.s390x.rpm
python-perf-debuginfo-3.10.0-957.10.1.el7.s390x.rpm

x86_64:
bpftool-3.10.0-957.10.1.el7.x86_64.rpm
kernel-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debug-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.10.1.el7.x86_64.rpm
kernel-devel-3.10.0-957.10.1.el7.x86_64.rpm
kernel-headers-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-957.10.1.el7.x86_64.rpm
perf-3.10.0-957.10.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
python-perf-3.10.0-957.10.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
kernel-debug-debuginfo-3.10.0-957.10.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-957.10.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-957.10.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-957.10.1.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-957.10.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-957.10.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-957.10.1.el7.ppc64.rpm

ppc64le:
kernel-debug-debuginfo-3.10.0-957.10.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-957.10.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-957.10.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-957.10.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-957.10.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-957.10.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-957.10.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-957.10.1.el7.ppc64le.rpm

x86_64:
kernel-debug-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-957.10.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
kernel-3.10.0-957.10.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-957.10.1.el7.noarch.rpm
kernel-doc-3.10.0-957.10.1.el7.noarch.rpm

x86_64:
bpftool-3.10.0-957.10.1.el7.x86_64.rpm
kernel-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debug-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.10.1.el7.x86_64.rpm
kernel-devel-3.10.0-957.10.1.el7.x86_64.rpm
kernel-headers-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-957.10.1.el7.x86_64.rpm
perf-3.10.0-957.10.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
python-perf-3.10.0-957.10.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
kernel-debug-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-957.10.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.10.1.el7.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2018-9568
https://access.redhat.com/security/cve/CVE-2018-17972
https://access.redhat.com/security/cve/CVE-2018-18445
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2019 Red Hat, Inc.
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