RedHat: RHSA-2020-3218:01 Moderate: kernel security and bug fix update
Summary
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)
Summary
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.
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
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/
Topic
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 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.
Topic
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
Bugs Fixed
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