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

Synopsis:          Moderate: kernel security and bug fix update
Advisory ID:       RHSA-2020:0036-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:0036
Issue date:        2020-01-07
CVE Names:         CVE-2017-0861 CVE-2017-10661 CVE-2018-10853
                   CVE-2018-18281 CVE-2019-11810 CVE-2019-11811
====================================================================
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 Moderate. 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: Use-after-free in snd_pcm_info function in ALSA subsystem
potentially leads to privilege escalation (CVE-2017-0861)

* kernel: Handling of might_cancel queueing is not properly pretected
against race (CVE-2017-10661)

* kernel: kvm: guest userspace to guest kernel write (CVE-2018-10853)

* kernel: TLB flush happens too late on mremap (CVE-2018-18281)

* kernel: a NULL pointer dereference in
drivers/scsi/megaraid/megaraid_sas_base.c leading to DoS (CVE-2019-11810)

* kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c,
ipmi_si_mem_io.c, ipmi_si_port_io.c (CVE-2019-11811)

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):

* Hard lockup in free_one_page()->_raw_spin_lock() because sosreport
command is reading from /proc/pagetypeinfo (BZ#1770730)

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/):

1481136 - CVE-2017-10661 kernel: Handling of might_cancel queueing is not properly pretected against race
1563994 - CVE-2017-0861 kernel: Use-after-free in snd_pcm_info function in ALSA subsystem potentially leads to privilege escalation
1589890 - CVE-2018-10853 kernel: kvm: guest userspace to guest kernel write
1645121 - CVE-2018-18281 kernel: TLB flush happens too late on mremap
1709164 - CVE-2019-11810 kernel: a NULL pointer dereference in drivers/scsi/megaraid/megaraid_sas_base.c leading to DoS
1709180 - CVE-2019-11811 kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.c

6. Package List:

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

Source:
kernel-3.10.0-862.46.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-862.46.1.el7.noarch.rpm
kernel-doc-3.10.0-862.46.1.el7.noarch.rpm

x86_64:
kernel-3.10.0-862.46.1.el7.x86_64.rpm
kernel-debug-3.10.0-862.46.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-862.46.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.46.1.el7.x86_64.rpm
kernel-devel-3.10.0-862.46.1.el7.x86_64.rpm
kernel-headers-3.10.0-862.46.1.el7.x86_64.rpm
kernel-tools-3.10.0-862.46.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-862.46.1.el7.x86_64.rpm
perf-3.10.0-862.46.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm
python-perf-3.10.0-862.46.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm

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

x86_64:
kernel-debug-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.46.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-862.46.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm

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

Source:
kernel-3.10.0-862.46.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-862.46.1.el7.noarch.rpm
kernel-doc-3.10.0-862.46.1.el7.noarch.rpm

ppc64:
kernel-3.10.0-862.46.1.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-862.46.1.el7.ppc64.rpm
kernel-debug-3.10.0-862.46.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-862.46.1.el7.ppc64.rpm
kernel-debug-devel-3.10.0-862.46.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-862.46.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-862.46.1.el7.ppc64.rpm
kernel-devel-3.10.0-862.46.1.el7.ppc64.rpm
kernel-headers-3.10.0-862.46.1.el7.ppc64.rpm
kernel-tools-3.10.0-862.46.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-862.46.1.el7.ppc64.rpm
kernel-tools-libs-3.10.0-862.46.1.el7.ppc64.rpm
perf-3.10.0-862.46.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-862.46.1.el7.ppc64.rpm
python-perf-3.10.0-862.46.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-862.46.1.el7.ppc64.rpm

ppc64le:
kernel-3.10.0-862.46.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-862.46.1.el7.ppc64le.rpm
kernel-debug-3.10.0-862.46.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-862.46.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-862.46.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-862.46.1.el7.ppc64le.rpm
kernel-devel-3.10.0-862.46.1.el7.ppc64le.rpm
kernel-headers-3.10.0-862.46.1.el7.ppc64le.rpm
kernel-tools-3.10.0-862.46.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-862.46.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-862.46.1.el7.ppc64le.rpm
perf-3.10.0-862.46.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-862.46.1.el7.ppc64le.rpm
python-perf-3.10.0-862.46.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-862.46.1.el7.ppc64le.rpm

s390x:
kernel-3.10.0-862.46.1.el7.s390x.rpm
kernel-debug-3.10.0-862.46.1.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-862.46.1.el7.s390x.rpm
kernel-debug-devel-3.10.0-862.46.1.el7.s390x.rpm
kernel-debuginfo-3.10.0-862.46.1.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-862.46.1.el7.s390x.rpm
kernel-devel-3.10.0-862.46.1.el7.s390x.rpm
kernel-headers-3.10.0-862.46.1.el7.s390x.rpm
kernel-kdump-3.10.0-862.46.1.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-862.46.1.el7.s390x.rpm
kernel-kdump-devel-3.10.0-862.46.1.el7.s390x.rpm
perf-3.10.0-862.46.1.el7.s390x.rpm
perf-debuginfo-3.10.0-862.46.1.el7.s390x.rpm
python-perf-3.10.0-862.46.1.el7.s390x.rpm
python-perf-debuginfo-3.10.0-862.46.1.el7.s390x.rpm

x86_64:
kernel-3.10.0-862.46.1.el7.x86_64.rpm
kernel-debug-3.10.0-862.46.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-862.46.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.46.1.el7.x86_64.rpm
kernel-devel-3.10.0-862.46.1.el7.x86_64.rpm
kernel-headers-3.10.0-862.46.1.el7.x86_64.rpm
kernel-tools-3.10.0-862.46.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-862.46.1.el7.x86_64.rpm
perf-3.10.0-862.46.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm
python-perf-3.10.0-862.46.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm

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

ppc64:
kernel-debug-debuginfo-3.10.0-862.46.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-862.46.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-862.46.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-862.46.1.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-862.46.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-862.46.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-862.46.1.el7.ppc64.rpm

ppc64le:
kernel-debug-debuginfo-3.10.0-862.46.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-862.46.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-862.46.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-862.46.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-862.46.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-862.46.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-862.46.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-862.46.1.el7.ppc64le.rpm

x86_64:
kernel-debug-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.46.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-862.46.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.46.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.46.1.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-2017-0861
https://access.redhat.com/security/cve/CVE-2017-10661
https://access.redhat.com/security/cve/CVE-2018-10853
https://access.redhat.com/security/cve/CVE-2018-18281
https://access.redhat.com/security/cve/CVE-2019-11810
https://access.redhat.com/security/cve/CVE-2019-11811
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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