RedHat: RHSA-2021-3444:01 Important: kernel security and bug fix up...

Advisories

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

Synopsis:          Important: kernel security and bug fix update
Advisory ID:       RHSA-2021:3444-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:3444
Issue date:        2021-09-07
CVE Names:         CVE-2021-3609 CVE-2021-3715 CVE-2021-37576 
=====================================================================

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: race condition in net/can/bcm.c leads to local privilege
escalation (CVE-2021-3609)

* kernel: use-after-free in route4_change() in net/sched/cls_route.c
(CVE-2021-3715)

* kernel: powerpc: KVM guest OS users can cause host OS memory corruption
(CVE-2021-37576)

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):

* Guest kernel call trace when boot up with 4T memory and 2 vcpus
(BZ#1993551)

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/):

1971651 - CVE-2021-3609 kernel: race condition in net/can/bcm.c leads to local privilege escalation
1986506 - CVE-2021-37576 kernel: powerpc: KVM guest OS users can cause host OS memory corruption
1993988 - CVE-2021-3715 kernel: use-after-free in route4_change() in net/sched/cls_route.c

6. Package List:

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

Source:
kernel-4.18.0-147.54.2.el8_1.src.rpm

aarch64:
bpftool-4.18.0-147.54.2.el8_1.aarch64.rpm
bpftool-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-core-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-cross-headers-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-debug-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-debug-core-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-debug-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-debug-devel-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-debug-modules-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-debug-modules-extra-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-devel-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-headers-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-modules-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-modules-extra-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-tools-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-tools-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-tools-libs-4.18.0-147.54.2.el8_1.aarch64.rpm
perf-4.18.0-147.54.2.el8_1.aarch64.rpm
perf-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm
python3-perf-4.18.0-147.54.2.el8_1.aarch64.rpm
python3-perf-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm

noarch:
kernel-abi-whitelists-4.18.0-147.54.2.el8_1.noarch.rpm
kernel-doc-4.18.0-147.54.2.el8_1.noarch.rpm

ppc64le:
bpftool-4.18.0-147.54.2.el8_1.ppc64le.rpm
bpftool-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-core-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-cross-headers-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-debug-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-debug-core-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-debug-devel-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-debug-modules-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-devel-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-headers-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-modules-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-modules-extra-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-tools-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-tools-libs-4.18.0-147.54.2.el8_1.ppc64le.rpm
perf-4.18.0-147.54.2.el8_1.ppc64le.rpm
perf-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm
python3-perf-4.18.0-147.54.2.el8_1.ppc64le.rpm
python3-perf-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm

s390x:
bpftool-4.18.0-147.54.2.el8_1.s390x.rpm
bpftool-debuginfo-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-core-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-cross-headers-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-debug-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-debug-core-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-debug-debuginfo-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-debug-devel-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-debug-modules-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-debug-modules-extra-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-debuginfo-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-devel-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-headers-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-modules-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-modules-extra-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-tools-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-tools-debuginfo-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-zfcpdump-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-zfcpdump-core-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-zfcpdump-devel-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-zfcpdump-modules-4.18.0-147.54.2.el8_1.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-147.54.2.el8_1.s390x.rpm
perf-4.18.0-147.54.2.el8_1.s390x.rpm
perf-debuginfo-4.18.0-147.54.2.el8_1.s390x.rpm
python3-perf-4.18.0-147.54.2.el8_1.s390x.rpm
python3-perf-debuginfo-4.18.0-147.54.2.el8_1.s390x.rpm

x86_64:
bpftool-4.18.0-147.54.2.el8_1.x86_64.rpm
bpftool-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-core-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-cross-headers-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-debug-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-debug-core-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-debug-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-debug-devel-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-debug-modules-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-debug-modules-extra-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-devel-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-headers-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-modules-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-modules-extra-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-tools-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-tools-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-tools-libs-4.18.0-147.54.2.el8_1.x86_64.rpm
perf-4.18.0-147.54.2.el8_1.x86_64.rpm
perf-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm
python3-perf-4.18.0-147.54.2.el8_1.x86_64.rpm
python3-perf-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm

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

aarch64:
bpftool-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-debug-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-tools-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm
kernel-tools-libs-devel-4.18.0-147.54.2.el8_1.aarch64.rpm
perf-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm
python3-perf-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm

ppc64le:
bpftool-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-147.54.2.el8_1.ppc64le.rpm
perf-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm
python3-perf-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm

x86_64:
bpftool-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-debug-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-tools-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm
kernel-tools-libs-devel-4.18.0-147.54.2.el8_1.x86_64.rpm
perf-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm
python3-perf-debuginfo-4.18.0-147.54.2.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-2021-3609
https://access.redhat.com/security/cve/CVE-2021-3715
https://access.redhat.com/security/cve/CVE-2021-37576
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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RedHat: RHSA-2021-3444:01 Important: kernel security and bug fix update

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

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: race condition in net/can/bcm.c leads to local privilege escalation (CVE-2021-3609)
* kernel: use-after-free in route4_change() in net/sched/cls_route.c (CVE-2021-3715)
* kernel: powerpc: KVM guest OS users can cause host OS memory corruption (CVE-2021-37576)
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):
* Guest kernel call trace when boot up with 4T memory and 2 vcpus (BZ#1993551)

Solution

For details on how to apply this update, which includes the changesdescribed in this advisory, refer to:https://access.redhat.com/articles/11258The system must be rebooted for this update to take effect.

References

https://access.redhat.com/security/cve/CVE-2021-3609 https://access.redhat.com/security/cve/CVE-2021-3715 https://access.redhat.com/security/cve/CVE-2021-37576 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS EUS (v. 8.1):
Source: kernel-4.18.0-147.54.2.el8_1.src.rpm
aarch64: bpftool-4.18.0-147.54.2.el8_1.aarch64.rpm bpftool-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-core-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-cross-headers-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-debug-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-debug-core-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-debug-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-debug-devel-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-debug-modules-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-debug-modules-extra-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-devel-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-headers-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-modules-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-modules-extra-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-tools-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-tools-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-tools-libs-4.18.0-147.54.2.el8_1.aarch64.rpm perf-4.18.0-147.54.2.el8_1.aarch64.rpm perf-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm python3-perf-4.18.0-147.54.2.el8_1.aarch64.rpm python3-perf-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm
noarch: kernel-abi-whitelists-4.18.0-147.54.2.el8_1.noarch.rpm kernel-doc-4.18.0-147.54.2.el8_1.noarch.rpm
ppc64le: bpftool-4.18.0-147.54.2.el8_1.ppc64le.rpm bpftool-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-core-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-cross-headers-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-debug-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-debug-core-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-debug-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-debug-devel-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-debug-modules-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-debug-modules-extra-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-devel-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-headers-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-modules-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-modules-extra-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-tools-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-tools-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-tools-libs-4.18.0-147.54.2.el8_1.ppc64le.rpm perf-4.18.0-147.54.2.el8_1.ppc64le.rpm perf-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm python3-perf-4.18.0-147.54.2.el8_1.ppc64le.rpm python3-perf-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm
s390x: bpftool-4.18.0-147.54.2.el8_1.s390x.rpm bpftool-debuginfo-4.18.0-147.54.2.el8_1.s390x.rpm kernel-4.18.0-147.54.2.el8_1.s390x.rpm kernel-core-4.18.0-147.54.2.el8_1.s390x.rpm kernel-cross-headers-4.18.0-147.54.2.el8_1.s390x.rpm kernel-debug-4.18.0-147.54.2.el8_1.s390x.rpm kernel-debug-core-4.18.0-147.54.2.el8_1.s390x.rpm kernel-debug-debuginfo-4.18.0-147.54.2.el8_1.s390x.rpm kernel-debug-devel-4.18.0-147.54.2.el8_1.s390x.rpm kernel-debug-modules-4.18.0-147.54.2.el8_1.s390x.rpm kernel-debug-modules-extra-4.18.0-147.54.2.el8_1.s390x.rpm kernel-debuginfo-4.18.0-147.54.2.el8_1.s390x.rpm kernel-debuginfo-common-s390x-4.18.0-147.54.2.el8_1.s390x.rpm kernel-devel-4.18.0-147.54.2.el8_1.s390x.rpm kernel-headers-4.18.0-147.54.2.el8_1.s390x.rpm kernel-modules-4.18.0-147.54.2.el8_1.s390x.rpm kernel-modules-extra-4.18.0-147.54.2.el8_1.s390x.rpm kernel-tools-4.18.0-147.54.2.el8_1.s390x.rpm kernel-tools-debuginfo-4.18.0-147.54.2.el8_1.s390x.rpm kernel-zfcpdump-4.18.0-147.54.2.el8_1.s390x.rpm kernel-zfcpdump-core-4.18.0-147.54.2.el8_1.s390x.rpm kernel-zfcpdump-debuginfo-4.18.0-147.54.2.el8_1.s390x.rpm kernel-zfcpdump-devel-4.18.0-147.54.2.el8_1.s390x.rpm kernel-zfcpdump-modules-4.18.0-147.54.2.el8_1.s390x.rpm kernel-zfcpdump-modules-extra-4.18.0-147.54.2.el8_1.s390x.rpm perf-4.18.0-147.54.2.el8_1.s390x.rpm perf-debuginfo-4.18.0-147.54.2.el8_1.s390x.rpm python3-perf-4.18.0-147.54.2.el8_1.s390x.rpm python3-perf-debuginfo-4.18.0-147.54.2.el8_1.s390x.rpm
x86_64: bpftool-4.18.0-147.54.2.el8_1.x86_64.rpm bpftool-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-core-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-cross-headers-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-debug-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-debug-core-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-debug-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-debug-devel-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-debug-modules-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-debug-modules-extra-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-devel-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-headers-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-modules-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-modules-extra-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-tools-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-tools-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-tools-libs-4.18.0-147.54.2.el8_1.x86_64.rpm perf-4.18.0-147.54.2.el8_1.x86_64.rpm perf-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm python3-perf-4.18.0-147.54.2.el8_1.x86_64.rpm python3-perf-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm
Red Hat CodeReady Linux Builder EUS (v. 8.1):
aarch64: bpftool-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-debug-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-tools-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm kernel-tools-libs-devel-4.18.0-147.54.2.el8_1.aarch64.rpm perf-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm python3-perf-debuginfo-4.18.0-147.54.2.el8_1.aarch64.rpm
ppc64le: bpftool-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-debug-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-tools-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm kernel-tools-libs-devel-4.18.0-147.54.2.el8_1.ppc64le.rpm perf-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm python3-perf-debuginfo-4.18.0-147.54.2.el8_1.ppc64le.rpm
x86_64: bpftool-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-debug-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-tools-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm kernel-tools-libs-devel-4.18.0-147.54.2.el8_1.x86_64.rpm perf-debuginfo-4.18.0-147.54.2.el8_1.x86_64.rpm python3-perf-debuginfo-4.18.0-147.54.2.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/

Severity
Advisory ID: RHSA-2021:3444-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3444
Issued Date: : 2021-09-07
CVE Names: CVE-2021-3609 CVE-2021-3715 CVE-2021-37576

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.1Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

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

Bugs Fixed

1971651 - CVE-2021-3609 kernel: race condition in net/can/bcm.c leads to local privilege escalation

1986506 - CVE-2021-37576 kernel: powerpc: KVM guest OS users can cause host OS memory corruption

1993988 - CVE-2021-3715 kernel: use-after-free in route4_change() in net/sched/cls_route.c

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