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Red Hat Security Advisory 2020-4286-01

Red Hat Security Advisory 2020-4286-01
Posted Oct 20, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4286-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include an information leakage vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2020-12351, CVE-2020-12352, CVE-2020-14331, CVE-2020-14385, CVE-2020-14386
MD5 | ca2183424ce189f07dabb3e9fde5d6f6

Red Hat Security Advisory 2020-4286-01

Change Mirror Download
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Hash: SHA256

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

Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2020:4286-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4286
Issue date: 2020-10-20
CVE Names: CVE-2020-12351 CVE-2020-12352 CVE-2020-14331
CVE-2020-14385 CVE-2020-14386
=====================================================================

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: 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)

* kernel: kernel: buffer over write in vgacon_scroll (CVE-2020-14331)

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):

* [mlx5] stale ethtool steering rules remain after moving back to legacy
mode (BZ#1857777)

* 50% cpu in masked_flow_update with pop to pod TCP_RR (BZ#1859216)

* take into account GSO and fragmented packets in execute_check_pkt_len
action (BZ#1860169)

* RHEL8.1 - scsi: ibmvfc: Avoid loss of all paths during SVC node reboot
(BZ#1866371)

* RHEL8.3 Pre-Beta - smc: SMC connections hang with later-level
implementations (BZ#1866390)

* Incorrect pinning of IRQ threads on isolated CPUs by drivers that use
cpumask_local_spread() (BZ#1867174)

* [RHEL8] Fixes for DEADLINE scheduler class (BZ#1867612)

* RHEL8.1 - s390/pci: Fix unexpected write combine on resource (BZ#1869276)

* dm multipath: fix spurious failures during IO completion [EIOP-8345]
(BZ#1869386)

* IO on virtio-scsi hangs when running cpu hotplug test (BZ#1869779)

* store_rps_map doesn't accept an empty bitmask, which is required for
disabling RPS on a queue (BZ#1870181)

* Memory registration cache data corruption possible, fix requires
backporting (BZ#1872424)

* fix another case of wait list corruption for PSM/sdma (BZ#1872766)

* [RHEL-8] Segmentation fault (core dumped) when fi_bw -e msg -v -T 1 -p
"verbs" (BZ#1872771)

* fix mounting and inode number handling on s390x (BZ#1875787)

* failure to enter nohz_full mode for non SCHED_FIFO tasks (BZ#1877417)

* Secure boot key is not loaded with kernel-4.18.0-232.el8.x86_64 /
shim-x64-15-15 (BZ#1877528)

* [RHEL-8.3] Kdump failed to start when secure boot enabled:
kexec_file_load failed: Required key not available (BZ#1877530)

* [RHEL-8.3] Kdump/kexec kernel panicked on EFI boot: general protection
fault: 0000 [#1] SMP PTI (BZ#1879988)

* Sleeping or scheduling after sched_cpu_dying() led to "scheduling while
atomic" and BUG at kernel/cpu.c:907! (BZ#1880081)

* [conntrack] udp packet reverse NAT occasionally fail when race condition
request combination with the DNAT load balancing rules (BZ#1882095)

* [Regression] RHEL8.3 Beta - Do not initiate shutdown for
EPOW_SHUTDOWN_ON_UPS event (BZ#1882243)

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/):

1858679 - CVE-2020-14331 kernel: kernel: buffer over write in vgacon_scroll
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 (v. 8):

Source:
kernel-4.18.0-193.28.1.el8_2.src.rpm

aarch64:
bpftool-4.18.0-193.28.1.el8_2.aarch64.rpm
bpftool-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-core-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-cross-headers-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debug-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debug-core-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debug-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debug-devel-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debug-modules-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debug-modules-extra-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-devel-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-headers-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-modules-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-modules-extra-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-tools-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-tools-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-tools-libs-4.18.0-193.28.1.el8_2.aarch64.rpm
perf-4.18.0-193.28.1.el8_2.aarch64.rpm
perf-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
python3-perf-4.18.0-193.28.1.el8_2.aarch64.rpm
python3-perf-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm

noarch:
kernel-abi-whitelists-4.18.0-193.28.1.el8_2.noarch.rpm
kernel-doc-4.18.0-193.28.1.el8_2.noarch.rpm

ppc64le:
bpftool-4.18.0-193.28.1.el8_2.ppc64le.rpm
bpftool-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-core-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-cross-headers-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debug-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debug-core-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debug-devel-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debug-modules-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-devel-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-headers-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-modules-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-modules-extra-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-tools-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-tools-libs-4.18.0-193.28.1.el8_2.ppc64le.rpm
perf-4.18.0-193.28.1.el8_2.ppc64le.rpm
perf-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
python3-perf-4.18.0-193.28.1.el8_2.ppc64le.rpm
python3-perf-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm

s390x:
bpftool-4.18.0-193.28.1.el8_2.s390x.rpm
bpftool-debuginfo-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-core-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-cross-headers-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-debug-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-debug-core-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-debug-debuginfo-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-debug-devel-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-debug-modules-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-debug-modules-extra-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-debuginfo-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-devel-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-headers-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-modules-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-modules-extra-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-tools-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-tools-debuginfo-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-zfcpdump-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-zfcpdump-core-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-zfcpdump-devel-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-zfcpdump-modules-4.18.0-193.28.1.el8_2.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-193.28.1.el8_2.s390x.rpm
perf-4.18.0-193.28.1.el8_2.s390x.rpm
perf-debuginfo-4.18.0-193.28.1.el8_2.s390x.rpm
python3-perf-4.18.0-193.28.1.el8_2.s390x.rpm
python3-perf-debuginfo-4.18.0-193.28.1.el8_2.s390x.rpm

x86_64:
bpftool-4.18.0-193.28.1.el8_2.x86_64.rpm
bpftool-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-core-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-cross-headers-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debug-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debug-core-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debug-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debug-devel-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debug-modules-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debug-modules-extra-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-devel-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-headers-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-modules-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-modules-extra-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-tools-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-tools-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-tools-libs-4.18.0-193.28.1.el8_2.x86_64.rpm
perf-4.18.0-193.28.1.el8_2.x86_64.rpm
perf-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
python3-perf-4.18.0-193.28.1.el8_2.x86_64.rpm
python3-perf-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm

Red Hat CodeReady Linux Builder (v. 8):

aarch64:
bpftool-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debug-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-tools-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
kernel-tools-libs-devel-4.18.0-193.28.1.el8_2.aarch64.rpm
perf-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm
python3-perf-debuginfo-4.18.0-193.28.1.el8_2.aarch64.rpm

ppc64le:
bpftool-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-193.28.1.el8_2.ppc64le.rpm
perf-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm
python3-perf-debuginfo-4.18.0-193.28.1.el8_2.ppc64le.rpm

x86_64:
bpftool-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debug-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-tools-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
kernel-tools-libs-devel-4.18.0-193.28.1.el8_2.x86_64.rpm
perf-debuginfo-4.18.0-193.28.1.el8_2.x86_64.rpm
python3-perf-debuginfo-4.18.0-193.28.1.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-2020-12351
https://access.redhat.com/security/cve/CVE-2020-12352
https://access.redhat.com/security/cve/CVE-2020-14331
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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