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Red Hat Security Advisory 2022-6872-01

Red Hat Security Advisory 2022-6872-01
Posted Oct 11, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-6872-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include privilege escalation and use-after-free vulnerabilities.

tags | advisory, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2022-21123, CVE-2022-21125, CVE-2022-21166, CVE-2022-2588
SHA-256 | 7042287da76680011014c0e393e72b2daacd7255f5ec81d8ad08022bb3ec1e87

Red Hat Security Advisory 2022-6872-01

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

Synopsis: Important: kernel security update
Advisory ID: RHSA-2022:6872-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:6872
Issue date: 2022-10-11
CVE Names: CVE-2022-2588 CVE-2022-21123 CVE-2022-21125
CVE-2022-21166
====================================================================
1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 8.1
Update Services for SAP Solutions.

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 Enterprise Linux BaseOS E4S (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):

* a use-after-free in cls_route filter implementation may lead to privilege
escalation (CVE-2022-2588)

* Incomplete cleanup of multi-core shared buffers (aka SBDR)
(CVE-2022-21123)

* Incomplete cleanup of microarchitectural fill buffers (aka SBDS)
(CVE-2022-21125)

* Incomplete cleanup in specific special register write operations (aka
DRPW) (CVE-2022-21166)

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.

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/):

2090237 - CVE-2022-21123 hw: cpu: Incomplete cleanup of multi-core shared buffers (aka SBDR)
2090240 - CVE-2022-21125 hw: cpu: Incomplete cleanup of microarchitectural fill buffers (aka SBDS)
2090241 - CVE-2022-21166 hw: cpu: Incomplete cleanup in specific special register write operations (aka DRPW)
2114849 - CVE-2022-2588 kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation

6. Package List:

Red Hat Enterprise Linux BaseOS E4S (v. 8.1):

Source:
kernel-4.18.0-147.76.1.el8_1.src.rpm

aarch64:
bpftool-4.18.0-147.76.1.el8_1.aarch64.rpm
bpftool-debuginfo-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-core-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-cross-headers-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-debug-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-debug-core-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-debug-debuginfo-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-debug-devel-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-debug-modules-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-debug-modules-extra-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-debuginfo-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-devel-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-headers-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-modules-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-modules-extra-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-tools-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-tools-debuginfo-4.18.0-147.76.1.el8_1.aarch64.rpm
kernel-tools-libs-4.18.0-147.76.1.el8_1.aarch64.rpm
perf-4.18.0-147.76.1.el8_1.aarch64.rpm
perf-debuginfo-4.18.0-147.76.1.el8_1.aarch64.rpm
python3-perf-4.18.0-147.76.1.el8_1.aarch64.rpm
python3-perf-debuginfo-4.18.0-147.76.1.el8_1.aarch64.rpm

noarch:
kernel-abi-whitelists-4.18.0-147.76.1.el8_1.noarch.rpm
kernel-doc-4.18.0-147.76.1.el8_1.noarch.rpm

ppc64le:
bpftool-4.18.0-147.76.1.el8_1.ppc64le.rpm
bpftool-debuginfo-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-core-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-cross-headers-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-debug-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-debug-core-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-debug-devel-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-debug-modules-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-debuginfo-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-devel-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-headers-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-modules-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-modules-extra-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-tools-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-147.76.1.el8_1.ppc64le.rpm
kernel-tools-libs-4.18.0-147.76.1.el8_1.ppc64le.rpm
perf-4.18.0-147.76.1.el8_1.ppc64le.rpm
perf-debuginfo-4.18.0-147.76.1.el8_1.ppc64le.rpm
python3-perf-4.18.0-147.76.1.el8_1.ppc64le.rpm
python3-perf-debuginfo-4.18.0-147.76.1.el8_1.ppc64le.rpm

s390x:
bpftool-4.18.0-147.76.1.el8_1.s390x.rpm
bpftool-debuginfo-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-core-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-cross-headers-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-debug-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-debug-core-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-debug-debuginfo-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-debug-devel-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-debug-modules-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-debug-modules-extra-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-debuginfo-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-devel-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-headers-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-modules-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-modules-extra-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-tools-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-tools-debuginfo-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-zfcpdump-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-zfcpdump-core-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-zfcpdump-devel-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-zfcpdump-modules-4.18.0-147.76.1.el8_1.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-147.76.1.el8_1.s390x.rpm
perf-4.18.0-147.76.1.el8_1.s390x.rpm
perf-debuginfo-4.18.0-147.76.1.el8_1.s390x.rpm
python3-perf-4.18.0-147.76.1.el8_1.s390x.rpm
python3-perf-debuginfo-4.18.0-147.76.1.el8_1.s390x.rpm

x86_64:
bpftool-4.18.0-147.76.1.el8_1.x86_64.rpm
bpftool-debuginfo-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-core-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-cross-headers-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-debug-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-debug-core-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-debug-debuginfo-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-debug-devel-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-debug-modules-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-debug-modules-extra-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-debuginfo-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-devel-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-headers-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-modules-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-modules-extra-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-tools-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-tools-debuginfo-4.18.0-147.76.1.el8_1.x86_64.rpm
kernel-tools-libs-4.18.0-147.76.1.el8_1.x86_64.rpm
perf-4.18.0-147.76.1.el8_1.x86_64.rpm
perf-debuginfo-4.18.0-147.76.1.el8_1.x86_64.rpm
python3-perf-4.18.0-147.76.1.el8_1.x86_64.rpm
python3-perf-debuginfo-4.18.0-147.76.1.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-2022-2588
https://access.redhat.com/security/cve/CVE-2022-21123
https://access.redhat.com/security/cve/CVE-2022-21125
https://access.redhat.com/security/cve/CVE-2022-21166
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 2022 Red Hat, Inc.
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