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

Synopsis:          Important: kernel security and bug fix update
Advisory ID:       RHSA-2020:2102-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:2102
Issue date:        2020-05-12
CVE Names:         CVE-2020-2732 CVE-2020-10711 CVE-2020-11884 
=====================================================================

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 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 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: NetLabel: null pointer dereference while receiving CIPSO packet
with null category may cause kernel panic (CVE-2020-10711)

* Kernel: s390: page table upgrade in secondary address mode may lead to
privilege escalation (CVE-2020-11884)

* Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access
sensitive L1 resources (CVE-2020-2732)

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):

* [RHEL8.2][Azure]Commits to resolve high network latency (BZ#1817945)

* cpu.share scheduling performance issue (BZ#1819909)

* [DELL 8.2 BUG] [WD 19 SC/DC/TBT] ALSA:  Microphone can't record via front
port after suspend (BZ#1821376)

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/):

1805135 - CVE-2020-2732 Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources
1825116 - CVE-2020-10711 Kernel: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic
1828149 - CVE-2020-11884 Kernel: s390: page table upgrade in secondary address mode may lead to privilege escalation

6. Package List:

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
kernel-4.18.0-193.1.2.el8_2.src.rpm

aarch64:
bpftool-4.18.0-193.1.2.el8_2.aarch64.rpm
bpftool-debuginfo-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-core-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-cross-headers-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-debug-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-debug-core-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-debug-debuginfo-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-debug-devel-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-debug-modules-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-debug-modules-extra-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-debuginfo-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-devel-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-headers-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-modules-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-modules-extra-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-tools-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-tools-debuginfo-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-tools-libs-4.18.0-193.1.2.el8_2.aarch64.rpm
perf-4.18.0-193.1.2.el8_2.aarch64.rpm
perf-debuginfo-4.18.0-193.1.2.el8_2.aarch64.rpm
python3-perf-4.18.0-193.1.2.el8_2.aarch64.rpm
python3-perf-debuginfo-4.18.0-193.1.2.el8_2.aarch64.rpm

noarch:
kernel-abi-whitelists-4.18.0-193.1.2.el8_2.noarch.rpm
kernel-doc-4.18.0-193.1.2.el8_2.noarch.rpm

ppc64le:
bpftool-4.18.0-193.1.2.el8_2.ppc64le.rpm
bpftool-debuginfo-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-core-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-cross-headers-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-debug-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-debug-core-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-debug-devel-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-debug-modules-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-debuginfo-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-devel-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-headers-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-modules-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-modules-extra-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-tools-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-tools-libs-4.18.0-193.1.2.el8_2.ppc64le.rpm
perf-4.18.0-193.1.2.el8_2.ppc64le.rpm
perf-debuginfo-4.18.0-193.1.2.el8_2.ppc64le.rpm
python3-perf-4.18.0-193.1.2.el8_2.ppc64le.rpm
python3-perf-debuginfo-4.18.0-193.1.2.el8_2.ppc64le.rpm

s390x:
bpftool-4.18.0-193.1.2.el8_2.s390x.rpm
bpftool-debuginfo-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-core-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-cross-headers-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-debug-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-debug-core-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-debug-debuginfo-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-debug-devel-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-debug-modules-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-debug-modules-extra-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-debuginfo-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-devel-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-headers-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-modules-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-modules-extra-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-tools-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-tools-debuginfo-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-zfcpdump-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-zfcpdump-core-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-zfcpdump-devel-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-zfcpdump-modules-4.18.0-193.1.2.el8_2.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-193.1.2.el8_2.s390x.rpm
perf-4.18.0-193.1.2.el8_2.s390x.rpm
perf-debuginfo-4.18.0-193.1.2.el8_2.s390x.rpm
python3-perf-4.18.0-193.1.2.el8_2.s390x.rpm
python3-perf-debuginfo-4.18.0-193.1.2.el8_2.s390x.rpm

x86_64:
bpftool-4.18.0-193.1.2.el8_2.x86_64.rpm
bpftool-debuginfo-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-core-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-cross-headers-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-debug-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-debug-core-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-debug-debuginfo-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-debug-devel-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-debug-modules-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-debug-modules-extra-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-debuginfo-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-devel-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-headers-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-modules-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-modules-extra-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-tools-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-tools-debuginfo-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-tools-libs-4.18.0-193.1.2.el8_2.x86_64.rpm
perf-4.18.0-193.1.2.el8_2.x86_64.rpm
perf-debuginfo-4.18.0-193.1.2.el8_2.x86_64.rpm
python3-perf-4.18.0-193.1.2.el8_2.x86_64.rpm
python3-perf-debuginfo-4.18.0-193.1.2.el8_2.x86_64.rpm

Red Hat CodeReady Linux Builder (v. 8):

aarch64:
bpftool-debuginfo-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-debug-debuginfo-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-debuginfo-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-tools-debuginfo-4.18.0-193.1.2.el8_2.aarch64.rpm
kernel-tools-libs-devel-4.18.0-193.1.2.el8_2.aarch64.rpm
perf-debuginfo-4.18.0-193.1.2.el8_2.aarch64.rpm
python3-perf-debuginfo-4.18.0-193.1.2.el8_2.aarch64.rpm

ppc64le:
bpftool-debuginfo-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-debuginfo-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-193.1.2.el8_2.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-193.1.2.el8_2.ppc64le.rpm
perf-debuginfo-4.18.0-193.1.2.el8_2.ppc64le.rpm
python3-perf-debuginfo-4.18.0-193.1.2.el8_2.ppc64le.rpm

x86_64:
bpftool-debuginfo-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-debug-debuginfo-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-debuginfo-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-tools-debuginfo-4.18.0-193.1.2.el8_2.x86_64.rpm
kernel-tools-libs-devel-4.18.0-193.1.2.el8_2.x86_64.rpm
perf-debuginfo-4.18.0-193.1.2.el8_2.x86_64.rpm
python3-perf-debuginfo-4.18.0-193.1.2.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-2020-2732
https://access.redhat.com/security/cve/CVE-2020-10711
https://access.redhat.com/security/cve/CVE-2020-11884
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 2020 Red Hat, Inc.
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