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

Synopsis:          Important: kernel security and bug fix update
Advisory ID:       RHSA-2019:3967-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:3967
Issue date:        2019-11-26
CVE Names:         CVE-2017-18208 CVE-2018-9568 CVE-2018-10902
                   CVE-2018-18559 CVE-2019-3900 CVE-2019-5489
                   CVE-2019-6974 CVE-2019-7221
====================================================================
1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 7.5
Extended Update Support.

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 ComputeNode EUS (v. 7.5) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5) - x86_64
Red Hat Enterprise Linux Server EUS (v. 7.5) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 7.5) - ppc64, ppc64le, 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: MIDI driver race condition leads to a double-free
(CVE-2018-10902)

* kernel: Use-after-free due to race condition in AF_PACKET implementation
(CVE-2018-18559)

* Kernel: vhost_net: infinite loop while receiving packets leads to DoS
(CVE-2019-3900)

* Kernel: page cache side channel attacks (CVE-2019-5489)

* Kernel: KVM: potential use-after-free via kvm_ioctl_create_device()
(CVE-2019-6974)

* Kernel: KVM: nVMX: use-after-free of the hrtimer for emulation of the
preemption timer (CVE-2019-7221)

* kernel: Inifinite loop vulnerability in mm/madvise.c:madvise_willneed()
function allows local denial of service (CVE-2017-18208)

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):

* A cluster node has multiple hung "mv" processes that are accessing a gfs2
filesystem. (BZ#1716321)

* Growing unreclaimable slab memory (BZ#1741918)

* [LLNL 7.5 Bug] slab leak causing a crash when using kmem control group
(BZ#1748236)

* kernel build: parallelize redhat/mod-sign.sh (BZ#1755328)

* kernel build: speed up module compression step (BZ#1755337)

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/):

1551565 - CVE-2017-18208 kernel: Inifinite loop vulnerability in mm/madvise.c:madvise_willneed() function allows local denial of service
1590720 - CVE-2018-10902 kernel: MIDI driver race condition leads to a double-free
1641878 - CVE-2018-18559 kernel: Use-after-free due to race condition in AF_PACKET implementation
1655904 - CVE-2018-9568 kernel: Memory corruption due to incorrect socket cloning
1664110 - CVE-2019-5489 Kernel: page cache side channel attacks
1671904 - CVE-2019-7221 Kernel: KVM: nVMX: use-after-free of the hrtimer for emulation of the preemption timer
1671913 - CVE-2019-6974 Kernel: KVM: potential use-after-free via kvm_ioctl_create_device()
1698757 - CVE-2019-3900 Kernel: vhost_net: infinite loop while receiving packets leads to DoS

6. Package List:

Red Hat Enterprise Linux ComputeNode EUS (v. 7.5):

Source:
kernel-3.10.0-862.44.2.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-862.44.2.el7.noarch.rpm
kernel-doc-3.10.0-862.44.2.el7.noarch.rpm

x86_64:
kernel-3.10.0-862.44.2.el7.x86_64.rpm
kernel-debug-3.10.0-862.44.2.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm
kernel-debug-devel-3.10.0-862.44.2.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.44.2.el7.x86_64.rpm
kernel-devel-3.10.0-862.44.2.el7.x86_64.rpm
kernel-headers-3.10.0-862.44.2.el7.x86_64.rpm
kernel-tools-3.10.0-862.44.2.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm
kernel-tools-libs-3.10.0-862.44.2.el7.x86_64.rpm
perf-3.10.0-862.44.2.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm
python-perf-3.10.0-862.44.2.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5):

x86_64:
kernel-debug-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.44.2.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-862.44.2.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm

Red Hat Enterprise Linux Server EUS (v. 7.5):

Source:
kernel-3.10.0-862.44.2.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-862.44.2.el7.noarch.rpm
kernel-doc-3.10.0-862.44.2.el7.noarch.rpm

ppc64:
kernel-3.10.0-862.44.2.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-862.44.2.el7.ppc64.rpm
kernel-debug-3.10.0-862.44.2.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-862.44.2.el7.ppc64.rpm
kernel-debug-devel-3.10.0-862.44.2.el7.ppc64.rpm
kernel-debuginfo-3.10.0-862.44.2.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-862.44.2.el7.ppc64.rpm
kernel-devel-3.10.0-862.44.2.el7.ppc64.rpm
kernel-headers-3.10.0-862.44.2.el7.ppc64.rpm
kernel-tools-3.10.0-862.44.2.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-862.44.2.el7.ppc64.rpm
kernel-tools-libs-3.10.0-862.44.2.el7.ppc64.rpm
perf-3.10.0-862.44.2.el7.ppc64.rpm
perf-debuginfo-3.10.0-862.44.2.el7.ppc64.rpm
python-perf-3.10.0-862.44.2.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-862.44.2.el7.ppc64.rpm

ppc64le:
kernel-3.10.0-862.44.2.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-862.44.2.el7.ppc64le.rpm
kernel-debug-3.10.0-862.44.2.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-862.44.2.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-862.44.2.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-862.44.2.el7.ppc64le.rpm
kernel-devel-3.10.0-862.44.2.el7.ppc64le.rpm
kernel-headers-3.10.0-862.44.2.el7.ppc64le.rpm
kernel-tools-3.10.0-862.44.2.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-862.44.2.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-862.44.2.el7.ppc64le.rpm
perf-3.10.0-862.44.2.el7.ppc64le.rpm
perf-debuginfo-3.10.0-862.44.2.el7.ppc64le.rpm
python-perf-3.10.0-862.44.2.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-862.44.2.el7.ppc64le.rpm

s390x:
kernel-3.10.0-862.44.2.el7.s390x.rpm
kernel-debug-3.10.0-862.44.2.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-862.44.2.el7.s390x.rpm
kernel-debug-devel-3.10.0-862.44.2.el7.s390x.rpm
kernel-debuginfo-3.10.0-862.44.2.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-862.44.2.el7.s390x.rpm
kernel-devel-3.10.0-862.44.2.el7.s390x.rpm
kernel-headers-3.10.0-862.44.2.el7.s390x.rpm
kernel-kdump-3.10.0-862.44.2.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-862.44.2.el7.s390x.rpm
kernel-kdump-devel-3.10.0-862.44.2.el7.s390x.rpm
perf-3.10.0-862.44.2.el7.s390x.rpm
perf-debuginfo-3.10.0-862.44.2.el7.s390x.rpm
python-perf-3.10.0-862.44.2.el7.s390x.rpm
python-perf-debuginfo-3.10.0-862.44.2.el7.s390x.rpm

x86_64:
kernel-3.10.0-862.44.2.el7.x86_64.rpm
kernel-debug-3.10.0-862.44.2.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm
kernel-debug-devel-3.10.0-862.44.2.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.44.2.el7.x86_64.rpm
kernel-devel-3.10.0-862.44.2.el7.x86_64.rpm
kernel-headers-3.10.0-862.44.2.el7.x86_64.rpm
kernel-tools-3.10.0-862.44.2.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm
kernel-tools-libs-3.10.0-862.44.2.el7.x86_64.rpm
perf-3.10.0-862.44.2.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm
python-perf-3.10.0-862.44.2.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional EUS (v. 7.5):

ppc64:
kernel-debug-debuginfo-3.10.0-862.44.2.el7.ppc64.rpm
kernel-debuginfo-3.10.0-862.44.2.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-862.44.2.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-862.44.2.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-862.44.2.el7.ppc64.rpm
perf-debuginfo-3.10.0-862.44.2.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-862.44.2.el7.ppc64.rpm

ppc64le:
kernel-debug-debuginfo-3.10.0-862.44.2.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-862.44.2.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-862.44.2.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-862.44.2.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-862.44.2.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-862.44.2.el7.ppc64le.rpm
perf-debuginfo-3.10.0-862.44.2.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-862.44.2.el7.ppc64le.rpm

x86_64:
kernel-debug-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.44.2.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-862.44.2.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.44.2.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.44.2.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-2017-18208
https://access.redhat.com/security/cve/CVE-2018-9568
https://access.redhat.com/security/cve/CVE-2018-10902
https://access.redhat.com/security/cve/CVE-2018-18559
https://access.redhat.com/security/cve/CVE-2019-3900
https://access.redhat.com/security/cve/CVE-2019-5489
https://access.redhat.com/security/cve/CVE-2019-6974
https://access.redhat.com/security/cve/CVE-2019-7221
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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