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Red Hat Security Advisory
Synopsis: Moderate: kernel security and bug fix update
Advisory ID: RHSA-2021:0019-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0019
Issue date: 2021-01-05
CVE Names: CVE-2018-20836 CVE-2019-15917 CVE-2019-20636
=====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 7.7
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. 7.7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) - x86_64
Red Hat Enterprise Linux Server EUS (v. 7.7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 7.7) - ppc64, ppc64le, x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* kernel: race condition in smp_task_timedout() and smp_task_done() in
drivers/scsi/libsas/sas_expander.c leads to use-after-free (CVE-2018-20836)
* kernel: use-after-free in drivers/bluetooth/hci_ldisc.c (CVE-2019-15917)
* kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)
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):
* RHEL7 - [ Brazos ] "Core(s) per socket" and "Socket" values are
interchanged in lscpu output. (kernel) (BZ#1879096)
* [DELL EMC 7.9 BUG] System crash when stressed using burnin stress tool
(BZ#1893994)
* [ Marvell 7.9] update qla2xxx driver with critical bug fixes (BZ#1895440)
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/):
1707796 - CVE-2018-20836 kernel: race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c leads to use-after-free
1760100 - CVE-2019-15917 kernel: use-after-free in drivers/bluetooth/hci_ldisc.c
1824059 - CVE-2019-20636 kernel: out-of-bounds write via crafted keycode table
6. Package List:
Red Hat Enterprise Linux ComputeNode EUS (v. 7.7):
Source:
kernel-3.10.0-1062.43.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-1062.43.1.el7.noarch.rpm
kernel-doc-3.10.0-1062.43.1.el7.noarch.rpm
x86_64:
bpftool-3.10.0-1062.43.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-debug-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-devel-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-headers-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-tools-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.43.1.el7.x86_64.rpm
perf-3.10.0-1062.43.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
python-perf-3.10.0-1062.43.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7):
x86_64:
bpftool-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.43.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.7):
Source:
kernel-3.10.0-1062.43.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-1062.43.1.el7.noarch.rpm
kernel-doc-3.10.0-1062.43.1.el7.noarch.rpm
ppc64:
bpftool-3.10.0-1062.43.1.el7.ppc64.rpm
bpftool-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-debug-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-debug-devel-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-devel-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-headers-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-tools-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-tools-libs-3.10.0-1062.43.1.el7.ppc64.rpm
perf-3.10.0-1062.43.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpm
python-perf-3.10.0-1062.43.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpm
ppc64le:
bpftool-3.10.0-1062.43.1.el7.ppc64le.rpm
bpftool-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-debug-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-devel-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-headers-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-tools-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-1062.43.1.el7.ppc64le.rpm
perf-3.10.0-1062.43.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpm
python-perf-3.10.0-1062.43.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpm
s390x:
bpftool-3.10.0-1062.43.1.el7.s390x.rpm
bpftool-debuginfo-3.10.0-1062.43.1.el7.s390x.rpm
kernel-3.10.0-1062.43.1.el7.s390x.rpm
kernel-debug-3.10.0-1062.43.1.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-1062.43.1.el7.s390x.rpm
kernel-debug-devel-3.10.0-1062.43.1.el7.s390x.rpm
kernel-debuginfo-3.10.0-1062.43.1.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-1062.43.1.el7.s390x.rpm
kernel-devel-3.10.0-1062.43.1.el7.s390x.rpm
kernel-headers-3.10.0-1062.43.1.el7.s390x.rpm
kernel-kdump-3.10.0-1062.43.1.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-1062.43.1.el7.s390x.rpm
kernel-kdump-devel-3.10.0-1062.43.1.el7.s390x.rpm
perf-3.10.0-1062.43.1.el7.s390x.rpm
perf-debuginfo-3.10.0-1062.43.1.el7.s390x.rpm
python-perf-3.10.0-1062.43.1.el7.s390x.rpm
python-perf-debuginfo-3.10.0-1062.43.1.el7.s390x.rpm
x86_64:
bpftool-3.10.0-1062.43.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-debug-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-devel-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-headers-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-tools-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.43.1.el7.x86_64.rpm
perf-3.10.0-1062.43.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
python-perf-3.10.0-1062.43.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional EUS (v. 7.7):
ppc64:
bpftool-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-1062.43.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpm
ppc64le:
bpftool-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-1062.43.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpm
x86_64:
bpftool-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.43.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.43.1.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-2018-20836
https://access.redhat.com/security/cve/CVE-2019-15917
https://access.redhat.com/security/cve/CVE-2019-20636
https://access.redhat.com/security/updates/classification/#moderate
8. Contact:
The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
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--
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RedHat: RHSA-2021-0019:01 Moderate: kernel security and bug fix update
An update for kernel is now available for Red Hat Enterprise Linux 7.7 Extended Update Support
Summary
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* kernel: race condition in smp_task_timedout() and smp_task_done() in
drivers/scsi/libsas/sas_expander.c leads to use-after-free (CVE-2018-20836)
* kernel: use-after-free in drivers/bluetooth/hci_ldisc.c (CVE-2019-15917)
* kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)
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):
* RHEL7 - [ Brazos ] "Core(s) per socket" and "Socket" values are
interchanged in lscpu output. (kernel) (BZ#1879096)
* [DELL EMC 7.9 BUG] System crash when stressed using burnin stress tool
(BZ#1893994)
* [ Marvell 7.9] update qla2xxx driver with critical bug fixes (BZ#1895440)
Solution
For details on how to apply this update, which includes the changesdescribed in this advisory, refer to:https://access.redhat.com/articles/11258The system must be rebooted for this update to take effect.
References
https://access.redhat.com/security/cve/CVE-2018-20836
https://access.redhat.com/security/cve/CVE-2019-15917
https://access.redhat.com/security/cve/CVE-2019-20636
https://access.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux ComputeNode EUS (v. 7.7):Source:kernel-3.10.0-1062.43.1.el7.src.rpmnoarch:kernel-abi-whitelists-3.10.0-1062.43.1.el7.noarch.rpmkernel-doc-3.10.0-1062.43.1.el7.noarch.rpmx86_64:bpftool-3.10.0-1062.43.1.el7.x86_64.rpmbpftool-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmkernel-3.10.0-1062.43.1.el7.x86_64.rpmkernel-debug-3.10.0-1062.43.1.el7.x86_64.rpmkernel-debug-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmkernel-debug-devel-3.10.0-1062.43.1.el7.x86_64.rpmkernel-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmkernel-debuginfo-common-x86_64-3.10.0-1062.43.1.el7.x86_64.rpmkernel-devel-3.10.0-1062.43.1.el7.x86_64.rpmkernel-headers-3.10.0-1062.43.1.el7.x86_64.rpmkernel-tools-3.10.0-1062.43.1.el7.x86_64.rpmkernel-tools-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmkernel-tools-libs-3.10.0-1062.43.1.el7.x86_64.rpmperf-3.10.0-1062.43.1.el7.x86_64.rpmperf-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmpython-perf-3.10.0-1062.43.1.el7.x86_64.rpmpython-perf-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmRed Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7):x86_64:bpftool-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmkernel-debug-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmkernel-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmkernel-debuginfo-common-x86_64-3.10.0-1062.43.1.el7.x86_64.rpmkernel-tools-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmkernel-tools-libs-devel-3.10.0-1062.43.1.el7.x86_64.rpmperf-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmpython-perf-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmRed Hat Enterprise Linux Server EUS (v. 7.7):Source:kernel-3.10.0-1062.43.1.el7.src.rpmnoarch:kernel-abi-whitelists-3.10.0-1062.43.1.el7.noarch.rpmkernel-doc-3.10.0-1062.43.1.el7.noarch.rpmppc64:bpftool-3.10.0-1062.43.1.el7.ppc64.rpmbpftool-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpmkernel-3.10.0-1062.43.1.el7.ppc64.rpmkernel-bootwrapper-3.10.0-1062.43.1.el7.ppc64.rpmkernel-debug-3.10.0-1062.43.1.el7.ppc64.rpmkernel-debug-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpmkernel-debug-devel-3.10.0-1062.43.1.el7.ppc64.rpmkernel-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpmkernel-debuginfo-common-ppc64-3.10.0-1062.43.1.el7.ppc64.rpmkernel-devel-3.10.0-1062.43.1.el7.ppc64.rpmkernel-headers-3.10.0-1062.43.1.el7.ppc64.rpmkernel-tools-3.10.0-1062.43.1.el7.ppc64.rpmkernel-tools-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpmkernel-tools-libs-3.10.0-1062.43.1.el7.ppc64.rpmperf-3.10.0-1062.43.1.el7.ppc64.rpmperf-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpmpython-perf-3.10.0-1062.43.1.el7.ppc64.rpmpython-perf-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpmppc64le:bpftool-3.10.0-1062.43.1.el7.ppc64le.rpmbpftool-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-bootwrapper-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-debug-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-debug-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-debuginfo-common-ppc64le-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-devel-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-headers-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-tools-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-tools-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-tools-libs-3.10.0-1062.43.1.el7.ppc64le.rpmperf-3.10.0-1062.43.1.el7.ppc64le.rpmperf-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpmpython-perf-3.10.0-1062.43.1.el7.ppc64le.rpmpython-perf-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpms390x:bpftool-3.10.0-1062.43.1.el7.s390x.rpmbpftool-debuginfo-3.10.0-1062.43.1.el7.s390x.rpmkernel-3.10.0-1062.43.1.el7.s390x.rpmkernel-debug-3.10.0-1062.43.1.el7.s390x.rpmkernel-debug-debuginfo-3.10.0-1062.43.1.el7.s390x.rpmkernel-debug-devel-3.10.0-1062.43.1.el7.s390x.rpmkernel-debuginfo-3.10.0-1062.43.1.el7.s390x.rpmkernel-debuginfo-common-s390x-3.10.0-1062.43.1.el7.s390x.rpmkernel-devel-3.10.0-1062.43.1.el7.s390x.rpmkernel-headers-3.10.0-1062.43.1.el7.s390x.rpmkernel-kdump-3.10.0-1062.43.1.el7.s390x.rpmkernel-kdump-debuginfo-3.10.0-1062.43.1.el7.s390x.rpmkernel-kdump-devel-3.10.0-1062.43.1.el7.s390x.rpmperf-3.10.0-1062.43.1.el7.s390x.rpmperf-debuginfo-3.10.0-1062.43.1.el7.s390x.rpmpython-perf-3.10.0-1062.43.1.el7.s390x.rpmpython-perf-debuginfo-3.10.0-1062.43.1.el7.s390x.rpmx86_64:bpftool-3.10.0-1062.43.1.el7.x86_64.rpmbpftool-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmkernel-3.10.0-1062.43.1.el7.x86_64.rpmkernel-debug-3.10.0-1062.43.1.el7.x86_64.rpmkernel-debug-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmkernel-debug-devel-3.10.0-1062.43.1.el7.x86_64.rpmkernel-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmkernel-debuginfo-common-x86_64-3.10.0-1062.43.1.el7.x86_64.rpmkernel-devel-3.10.0-1062.43.1.el7.x86_64.rpmkernel-headers-3.10.0-1062.43.1.el7.x86_64.rpmkernel-tools-3.10.0-1062.43.1.el7.x86_64.rpmkernel-tools-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmkernel-tools-libs-3.10.0-1062.43.1.el7.x86_64.rpmperf-3.10.0-1062.43.1.el7.x86_64.rpmperf-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmpython-perf-3.10.0-1062.43.1.el7.x86_64.rpmpython-perf-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmRed Hat Enterprise Linux Server Optional EUS (v. 7.7):ppc64:bpftool-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpmkernel-debug-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpmkernel-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpmkernel-debuginfo-common-ppc64-3.10.0-1062.43.1.el7.ppc64.rpmkernel-tools-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpmkernel-tools-libs-devel-3.10.0-1062.43.1.el7.ppc64.rpmperf-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpmpython-perf-debuginfo-3.10.0-1062.43.1.el7.ppc64.rpmppc64le:bpftool-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-debug-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-debug-devel-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-debuginfo-common-ppc64le-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-tools-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpmkernel-tools-libs-devel-3.10.0-1062.43.1.el7.ppc64le.rpmperf-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpmpython-perf-debuginfo-3.10.0-1062.43.1.el7.ppc64le.rpmx86_64:bpftool-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmkernel-debug-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmkernel-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmkernel-debuginfo-common-x86_64-3.10.0-1062.43.1.el7.x86_64.rpmkernel-tools-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmkernel-tools-libs-devel-3.10.0-1062.43.1.el7.x86_64.rpmperf-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmpython-perf-debuginfo-3.10.0-1062.43.1.el7.x86_64.rpmThese 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Severity
Synopsis: Moderate: kernel security and bug fix update
Advisory ID: RHSA-2021:0019-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0019
Issued Date: : 2021-01-05
CVE Names: CVE-2018-20836 CVE-2019-15917 CVE-2019-20636
Topic
An update for kernel is now available for Red Hat Enterprise Linux 7.7Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.
Relevant Releases Architectures
Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) - x86_64
Red Hat Enterprise Linux Server EUS (v. 7.7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 7.7) - ppc64, ppc64le, x86_64
Bugs Fixed
1707796 - CVE-2018-20836 kernel: race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c leads to use-after-free
1760100 - CVE-2019-15917 kernel: use-after-free in drivers/bluetooth/hci_ldisc.c
1824059 - CVE-2019-20636 kernel: out-of-bounds write via crafted keycode table
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