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Red Hat Security Advisory 2020-4287-01

Red Hat Security Advisory 2020-4287-01
Posted Oct 20, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4287-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include denial of service and information leakage vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2020-12351, CVE-2020-12352, CVE-2020-14385, CVE-2020-14386
MD5 | 0e9b2a44406e1502eb1daf6f63e7d8d9

Red Hat Security Advisory 2020-4287-01

Change Mirror Download
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=====================================================================
Red Hat Security Advisory

Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2020:4287-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4287
Issue date: 2020-10-20
CVE Names: CVE-2020-12351 CVE-2020-12352 CVE-2020-14385
CVE-2020-14386
=====================================================================

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: net: bluetooth: type confusion while processing AMP packets
(CVE-2020-12351)

* kernel: net: bluetooth: information leak when processing certain AMP
packets (CVE-2020-12352)

* kernel: metadata validator in XFS may cause an inode with a valid,
user-creatable extended attribute to be flagged as corrupt (CVE-2020-14385)

* kernel: memory corruption in net/packet/af_packet.c leads to elevation of
privilege (CVE-2020-14386)

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):

* NFS client autodisconnect timer may fire immediately after TCP connection
setup and may cause DoS type reconnect problem in complex network
environments (BZ#1873571)

* hang on full fs from trace_cmd (BZ#1875789)

* Secure boot key is not loaded with kernel-4.18.0-232.el8.x86_64 /
shim-x64-15-15 (BZ#1877527)

* [RHEL-8.3] Kdump failed to start when secure boot enabled:
kexec_file_load failed: Required key not available (BZ#1877529)

* [RHEL-8.3] Kdump/kexec kernel panicked on EFI boot: general protection
fault: 0000 [#1] SMP PTI (BZ#1879987)

* [conntrack] udp packet reverse NAT occasionally fail when race condition
request combination with the DNAT load balancing rules (BZ#1882096)

* [Regression] RHEL8.3 Beta - Do not initiate shutdown for
EPOW_SHUTDOWN_ON_UPS event (BZ#1882244)

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/):

1874800 - CVE-2020-14385 kernel: metadata validator in XFS may cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt
1875699 - CVE-2020-14386 kernel: memory corruption in net/packet/af_packet.c leads to elevation of privilege
1886521 - CVE-2020-12351 kernel: net: bluetooth: type confusion while processing AMP packets
1886529 - CVE-2020-12352 kernel: net: bluetooth: information leak when processing certain AMP packets

6. Package List:

Red Hat Enterprise Linux BaseOS EUS (v. 8.1):

Source:
kernel-4.18.0-147.32.1.el8_1.src.rpm

aarch64:
bpftool-4.18.0-147.32.1.el8_1.aarch64.rpm
bpftool-debuginfo-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-core-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-cross-headers-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-debug-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-debug-core-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-debug-debuginfo-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-debug-devel-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-debug-modules-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-debug-modules-extra-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-debuginfo-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-devel-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-headers-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-modules-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-modules-extra-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-tools-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-tools-debuginfo-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-tools-libs-4.18.0-147.32.1.el8_1.aarch64.rpm
perf-4.18.0-147.32.1.el8_1.aarch64.rpm
perf-debuginfo-4.18.0-147.32.1.el8_1.aarch64.rpm
python3-perf-4.18.0-147.32.1.el8_1.aarch64.rpm
python3-perf-debuginfo-4.18.0-147.32.1.el8_1.aarch64.rpm

noarch:
kernel-abi-whitelists-4.18.0-147.32.1.el8_1.noarch.rpm
kernel-doc-4.18.0-147.32.1.el8_1.noarch.rpm

ppc64le:
bpftool-4.18.0-147.32.1.el8_1.ppc64le.rpm
bpftool-debuginfo-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-core-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-cross-headers-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-debug-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-debug-core-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-debug-devel-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-debug-modules-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-debuginfo-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-devel-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-headers-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-modules-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-modules-extra-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-tools-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-tools-libs-4.18.0-147.32.1.el8_1.ppc64le.rpm
perf-4.18.0-147.32.1.el8_1.ppc64le.rpm
perf-debuginfo-4.18.0-147.32.1.el8_1.ppc64le.rpm
python3-perf-4.18.0-147.32.1.el8_1.ppc64le.rpm
python3-perf-debuginfo-4.18.0-147.32.1.el8_1.ppc64le.rpm

s390x:
bpftool-4.18.0-147.32.1.el8_1.s390x.rpm
bpftool-debuginfo-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-core-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-cross-headers-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-debug-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-debug-core-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-debug-debuginfo-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-debug-devel-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-debug-modules-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-debug-modules-extra-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-debuginfo-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-devel-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-headers-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-modules-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-modules-extra-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-tools-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-tools-debuginfo-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-zfcpdump-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-zfcpdump-core-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-zfcpdump-devel-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-zfcpdump-modules-4.18.0-147.32.1.el8_1.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-147.32.1.el8_1.s390x.rpm
perf-4.18.0-147.32.1.el8_1.s390x.rpm
perf-debuginfo-4.18.0-147.32.1.el8_1.s390x.rpm
python3-perf-4.18.0-147.32.1.el8_1.s390x.rpm
python3-perf-debuginfo-4.18.0-147.32.1.el8_1.s390x.rpm

x86_64:
bpftool-4.18.0-147.32.1.el8_1.x86_64.rpm
bpftool-debuginfo-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-core-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-cross-headers-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-debug-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-debug-core-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-debug-debuginfo-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-debug-devel-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-debug-modules-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-debug-modules-extra-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-debuginfo-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-devel-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-headers-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-modules-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-modules-extra-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-tools-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-tools-debuginfo-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-tools-libs-4.18.0-147.32.1.el8_1.x86_64.rpm
perf-4.18.0-147.32.1.el8_1.x86_64.rpm
perf-debuginfo-4.18.0-147.32.1.el8_1.x86_64.rpm
python3-perf-4.18.0-147.32.1.el8_1.x86_64.rpm
python3-perf-debuginfo-4.18.0-147.32.1.el8_1.x86_64.rpm

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

aarch64:
bpftool-debuginfo-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-debug-debuginfo-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-debuginfo-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-tools-debuginfo-4.18.0-147.32.1.el8_1.aarch64.rpm
kernel-tools-libs-devel-4.18.0-147.32.1.el8_1.aarch64.rpm
perf-debuginfo-4.18.0-147.32.1.el8_1.aarch64.rpm
python3-perf-debuginfo-4.18.0-147.32.1.el8_1.aarch64.rpm

ppc64le:
bpftool-debuginfo-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-debuginfo-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-147.32.1.el8_1.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-147.32.1.el8_1.ppc64le.rpm
perf-debuginfo-4.18.0-147.32.1.el8_1.ppc64le.rpm
python3-perf-debuginfo-4.18.0-147.32.1.el8_1.ppc64le.rpm

x86_64:
bpftool-debuginfo-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-debug-debuginfo-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-debuginfo-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-tools-debuginfo-4.18.0-147.32.1.el8_1.x86_64.rpm
kernel-tools-libs-devel-4.18.0-147.32.1.el8_1.x86_64.rpm
perf-debuginfo-4.18.0-147.32.1.el8_1.x86_64.rpm
python3-perf-debuginfo-4.18.0-147.32.1.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-2020-12351
https://access.redhat.com/security/cve/CVE-2020-12352
https://access.redhat.com/security/cve/CVE-2020-14385
https://access.redhat.com/security/cve/CVE-2020-14386
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/BleedingTooth

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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