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===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2020.1667
kernel security and bug fix update
13 May 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: kernel
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 8
Red Hat Enterprise Linux WS/Desktop 8
Impact/Access: Root Compromise -- Existing Account
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-11884 CVE-2020-10711 CVE-2020-2732
Reference: ESB-2020.1585
ESB-2020.1473
ESB-2020.0954
ESB-2020.0949
ESB-2020.0947
ESB-2020.0945
ESB-2020.0908
Original Bulletin:
https://access.redhat.com/errata/RHSA-2020:2102
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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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