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Red Hat Security Advisory

Synopsis: Important: kernel security, bug fix, and enhancement update
Advisory ID: RHSA-2020:2199-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2199
Issue date: 2020-05-19
CVE Names: CVE-2019-19768 CVE-2020-10711 CVE-2020-11884
=====================================================================

1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 8.1
Extended Update Support.

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 EUS (v. 8.1) – aarch64, ppc64le, x86_64
Red Hat Enterprise Linux BaseOS EUS (v. 8.1) – 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: use-after-free in __blk_add_trace in kernel/trace/blktrace.c
(CVE-2019-19768)

* 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)

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):

* [FJ8.1 Bug]: A system panic occurs when an I/O timeout occurs.
(BZ#1787296)

* [i40e]BUG: unable to handle kernel NULL pointer dereference at
0000000000000029 (BZ#1802483)

* [OSP16] [offload] [mellanox] VF representors of 2nd nic of bond is NOT
renamed as <PF>_<VFid> (BZ#1802484)

* The kernel crashes in nbd_check_sock_type() due to stack corruption if
the socket address family is AF_INET6. (BZ#1807605)

* Hung kernel tasks with LPm16004B-L when fabric paths are returning
(BZ#1807831)

* bitops: protect variables in set_mask_bits() macro (kernel) (BZ#1809042)

* [RHEL8] blktests block/007 test failed (BZ#1812806)

* [RHEL8.2 Alpha] Server panics with NULL pointer dereference during boot
in selinux_task_to_inode() (BZ#1812807)

* [RHEL8] Kernel panic on job cleanup, related to SyS_getdents64
(BZ#1812808)

* [HPE 8.2 Bug] kernel ignores NMI from ilo (BZ#1816830)

* [RHEL8.2][Azure]Commits to resolve high network latency (BZ#1817944)

* cpu.share scheduling performance issue (BZ#1819908)

* [RHEL8] Scheduler – backport asymetrical and misfit enhancements
(BZ#1821370)

* RHEL8.0 – powerpc/powernv: Enhance opal message read interface
(BZ#1822205)

* SCSI updates for 8.2 (BZ#1822252)

Enhancement(s):

* [RFE] Backport RCU dependecies for kernel-rt (rhel-rt-8.2.0) from stable
(BZ#1826215)

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/):

1786164 – CVE-2019-19768 kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c
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 EUS (v. 8.1):

Source:
kernel-4.18.0-147.13.2.el8_1.src.rpm

aarch64:
bpftool-4.18.0-147.13.2.el8_1.aarch64.rpm
bpftool-debuginfo-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-core-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-cross-headers-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-debug-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-debug-core-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-debug-debuginfo-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-debug-devel-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-debug-modules-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-debug-modules-extra-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-debuginfo-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-devel-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-headers-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-modules-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-modules-extra-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-tools-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-tools-debuginfo-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-tools-libs-4.18.0-147.13.2.el8_1.aarch64.rpm
perf-4.18.0-147.13.2.el8_1.aarch64.rpm
perf-debuginfo-4.18.0-147.13.2.el8_1.aarch64.rpm
python3-perf-4.18.0-147.13.2.el8_1.aarch64.rpm
python3-perf-debuginfo-4.18.0-147.13.2.el8_1.aarch64.rpm

noarch:
kernel-abi-whitelists-4.18.0-147.13.2.el8_1.noarch.rpm
kernel-doc-4.18.0-147.13.2.el8_1.noarch.rpm

ppc64le:
bpftool-4.18.0-147.13.2.el8_1.ppc64le.rpm
bpftool-debuginfo-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-core-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-cross-headers-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-debug-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-debug-core-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-debug-devel-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-debug-modules-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-debuginfo-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-devel-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-headers-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-modules-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-modules-extra-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-tools-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-tools-libs-4.18.0-147.13.2.el8_1.ppc64le.rpm
perf-4.18.0-147.13.2.el8_1.ppc64le.rpm
perf-debuginfo-4.18.0-147.13.2.el8_1.ppc64le.rpm
python3-perf-4.18.0-147.13.2.el8_1.ppc64le.rpm
python3-perf-debuginfo-4.18.0-147.13.2.el8_1.ppc64le.rpm

s390x:
bpftool-4.18.0-147.13.2.el8_1.s390x.rpm
bpftool-debuginfo-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-core-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-cross-headers-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-debug-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-debug-core-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-debug-debuginfo-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-debug-devel-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-debug-modules-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-debug-modules-extra-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-debuginfo-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-devel-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-headers-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-modules-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-modules-extra-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-tools-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-tools-debuginfo-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-zfcpdump-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-zfcpdump-core-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-zfcpdump-devel-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-zfcpdump-modules-4.18.0-147.13.2.el8_1.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-147.13.2.el8_1.s390x.rpm
perf-4.18.0-147.13.2.el8_1.s390x.rpm
perf-debuginfo-4.18.0-147.13.2.el8_1.s390x.rpm
python3-perf-4.18.0-147.13.2.el8_1.s390x.rpm
python3-perf-debuginfo-4.18.0-147.13.2.el8_1.s390x.rpm

x86_64:
bpftool-4.18.0-147.13.2.el8_1.x86_64.rpm
bpftool-debuginfo-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-core-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-cross-headers-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-debug-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-debug-core-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-debug-debuginfo-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-debug-devel-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-debug-modules-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-debug-modules-extra-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-debuginfo-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-devel-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-headers-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-modules-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-modules-extra-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-tools-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-tools-debuginfo-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-tools-libs-4.18.0-147.13.2.el8_1.x86_64.rpm
perf-4.18.0-147.13.2.el8_1.x86_64.rpm
perf-debuginfo-4.18.0-147.13.2.el8_1.x86_64.rpm
python3-perf-4.18.0-147.13.2.el8_1.x86_64.rpm
python3-perf-debuginfo-4.18.0-147.13.2.el8_1.x86_64.rpm

Red Hat CodeReady Linux Builder EUS (v. 8.1):

aarch64:
bpftool-debuginfo-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-debug-debuginfo-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-debuginfo-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-tools-debuginfo-4.18.0-147.13.2.el8_1.aarch64.rpm
kernel-tools-libs-devel-4.18.0-147.13.2.el8_1.aarch64.rpm
perf-debuginfo-4.18.0-147.13.2.el8_1.aarch64.rpm
python3-perf-debuginfo-4.18.0-147.13.2.el8_1.aarch64.rpm

ppc64le:
bpftool-debuginfo-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-debuginfo-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-147.13.2.el8_1.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-147.13.2.el8_1.ppc64le.rpm
perf-debuginfo-4.18.0-147.13.2.el8_1.ppc64le.rpm
python3-perf-debuginfo-4.18.0-147.13.2.el8_1.ppc64le.rpm

x86_64:
bpftool-debuginfo-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-debug-debuginfo-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-debuginfo-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-tools-debuginfo-4.18.0-147.13.2.el8_1.x86_64.rpm
kernel-tools-libs-devel-4.18.0-147.13.2.el8_1.x86_64.rpm
perf-debuginfo-4.18.0-147.13.2.el8_1.x86_64.rpm
python3-perf-debuginfo-4.18.0-147.13.2.el8_1.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-2019-19768
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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