An update for kernel is now available for Red Hat Enterprise Linux 8. 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

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

Synopsis:          Moderate: kernel security and bug fix update
Advisory ID:       RHSA-2020:3218-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:3218
Issue date:        2020-07-29
CVE Names:         CVE-2019-20908 CVE-2020-15780 
====================================================================
1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 8.

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 CodeReady Linux Builder (v. 8) - aarch64, ppc64le, x86_64
Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

3. Description:

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

Security Fix(es):

* kernel: lockdown: bypass through ACPI write via efivar_ssdt
(CVE-2019-20908)

* kernel: lockdown: bypass through ACPI write via acpi_configfs
(CVE-2020-15780)

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):

* kernel: provide infrastructure to support dual-signing of the kernel
(foundation to help address CVE-2020-10713) (BZ#1837433)

* [Regression] RHEL8.2 RC  - [Boston/DD2.1]
[RHEL8.2/kernel-4.18.0-193.el8.ppc64le] Host kernel crashes while running
storage test bucket on KVM guest (iscsi) (BZ#1852048)

* RHEL8.2 - s390/mm: fix panic in gup_fast on large pud (BZ#1853336)

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/):

1852942 - CVE-2019-20908 kernel: lockdown: bypass through ACPI write via efivar_ssdt
1852962 - CVE-2020-15780 kernel: lockdown: bypass through ACPI write via acpi_configfs

6. Package List:

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
kernel-4.18.0-193.14.3.el8_2.src.rpm

aarch64:
bpftool-4.18.0-193.14.3.el8_2.aarch64.rpm
bpftool-debuginfo-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-core-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-cross-headers-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-debug-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-debug-core-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-debug-debuginfo-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-debug-devel-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-debug-modules-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-debug-modules-extra-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-debuginfo-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-devel-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-headers-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-modules-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-modules-extra-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-tools-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-tools-debuginfo-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-tools-libs-4.18.0-193.14.3.el8_2.aarch64.rpm
perf-4.18.0-193.14.3.el8_2.aarch64.rpm
perf-debuginfo-4.18.0-193.14.3.el8_2.aarch64.rpm
python3-perf-4.18.0-193.14.3.el8_2.aarch64.rpm
python3-perf-debuginfo-4.18.0-193.14.3.el8_2.aarch64.rpm

noarch:
kernel-abi-whitelists-4.18.0-193.14.3.el8_2.noarch.rpm
kernel-doc-4.18.0-193.14.3.el8_2.noarch.rpm

ppc64le:
bpftool-4.18.0-193.14.3.el8_2.ppc64le.rpm
bpftool-debuginfo-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-core-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-cross-headers-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-debug-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-debug-core-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-debug-devel-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-debug-modules-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-debuginfo-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-devel-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-headers-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-modules-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-modules-extra-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-tools-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-tools-libs-4.18.0-193.14.3.el8_2.ppc64le.rpm
perf-4.18.0-193.14.3.el8_2.ppc64le.rpm
perf-debuginfo-4.18.0-193.14.3.el8_2.ppc64le.rpm
python3-perf-4.18.0-193.14.3.el8_2.ppc64le.rpm
python3-perf-debuginfo-4.18.0-193.14.3.el8_2.ppc64le.rpm

s390x:
bpftool-4.18.0-193.14.3.el8_2.s390x.rpm
bpftool-debuginfo-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-core-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-cross-headers-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-debug-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-debug-core-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-debug-debuginfo-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-debug-devel-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-debug-modules-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-debug-modules-extra-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-debuginfo-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-devel-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-headers-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-modules-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-modules-extra-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-tools-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-tools-debuginfo-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-zfcpdump-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-zfcpdump-core-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-zfcpdump-devel-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-zfcpdump-modules-4.18.0-193.14.3.el8_2.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-193.14.3.el8_2.s390x.rpm
perf-4.18.0-193.14.3.el8_2.s390x.rpm
perf-debuginfo-4.18.0-193.14.3.el8_2.s390x.rpm
python3-perf-4.18.0-193.14.3.el8_2.s390x.rpm
python3-perf-debuginfo-4.18.0-193.14.3.el8_2.s390x.rpm

x86_64:
bpftool-4.18.0-193.14.3.el8_2.x86_64.rpm
bpftool-debuginfo-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-core-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-cross-headers-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-debug-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-debug-core-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-debug-debuginfo-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-debug-devel-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-debug-modules-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-debug-modules-extra-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-debuginfo-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-devel-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-headers-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-modules-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-modules-extra-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-tools-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-tools-debuginfo-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-tools-libs-4.18.0-193.14.3.el8_2.x86_64.rpm
perf-4.18.0-193.14.3.el8_2.x86_64.rpm
perf-debuginfo-4.18.0-193.14.3.el8_2.x86_64.rpm
python3-perf-4.18.0-193.14.3.el8_2.x86_64.rpm
python3-perf-debuginfo-4.18.0-193.14.3.el8_2.x86_64.rpm

Red Hat CodeReady Linux Builder (v. 8):

aarch64:
bpftool-debuginfo-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-debug-debuginfo-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-debuginfo-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-tools-debuginfo-4.18.0-193.14.3.el8_2.aarch64.rpm
kernel-tools-libs-devel-4.18.0-193.14.3.el8_2.aarch64.rpm
perf-debuginfo-4.18.0-193.14.3.el8_2.aarch64.rpm
python3-perf-debuginfo-4.18.0-193.14.3.el8_2.aarch64.rpm

ppc64le:
bpftool-debuginfo-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-debuginfo-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-193.14.3.el8_2.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-193.14.3.el8_2.ppc64le.rpm
perf-debuginfo-4.18.0-193.14.3.el8_2.ppc64le.rpm
python3-perf-debuginfo-4.18.0-193.14.3.el8_2.ppc64le.rpm

x86_64:
bpftool-debuginfo-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-debug-debuginfo-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-debuginfo-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-tools-debuginfo-4.18.0-193.14.3.el8_2.x86_64.rpm
kernel-tools-libs-devel-4.18.0-193.14.3.el8_2.x86_64.rpm
perf-debuginfo-4.18.0-193.14.3.el8_2.x86_64.rpm
python3-perf-debuginfo-4.18.0-193.14.3.el8_2.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-2019-20908
https://access.redhat.com/security/cve/CVE-2020-15780
https://access.redhat.com/security/updates/classification#moderate
https://access.redhat.com/security/vulnerabilities/grub2bootloader

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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