Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2022.1764
kernel security, bug fix, and enhancement update
22 April 2022
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: kernel
Publisher: Red Hat
Operating System: Red Hat
Resolution: Patch/Upgrade
CVE Names: CVE-2022-25636 CVE-2022-0492 CVE-2021-4083
Original Bulletin:
https://access.redhat.com/errata/RHSA-2022:1455
Comment: CVSS (Max): 7.8 CVE-2022-25636 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
=====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel security, bug fix, and enhancement update
Advisory ID: RHSA-2022:1455-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:1455
Issue date: 2022-04-20
CVE Names: CVE-2021-4083 CVE-2022-0492 CVE-2022-25636
=====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 8.4
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. 8.4) - aarch64, ppc64le, x86_64
Red Hat Enterprise Linux BaseOS EUS (v.8.4) - 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: fget: check that the fd still exists after getting a ref to it
(CVE-2021-4083)
* kernel: cgroups v1 release_agent feature may allow privilege escalation
(CVE-2022-0492)
* kernel: heap out of bounds write in nf_dup_netdev.c (CVE-2022-25636)
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 Fixes:
* Power10 PMU fix for PM_CYC/PM_INST_CMPL ( kernel/perf) (BZ#2040665)
* call traces and packet drops seen after changing mtu of ibmvnic
interface. (ibmvnic/ P10/ Everglade) (BZ#2050679)
* zfcp: fix failed recovery on gone remote port, non-NPIV FCP dev
(BZ#2050739)
* overlay mount fails with ELOOP (Too many levels of symbolic links)
(BZ#2053030)
* Host unable to automatically add namespaces belonging to a new ANA group
(BZ#2055466)
* scheduler updates and fixes [None8.4.0.z] (BZ#2056834)
* nf_reinject calls nf_queue_entry_free on an already freed entry->state
(BZ#2061445)
* First Packet Latency impacted by mlx5 warning msg (BZ#2067992)
* openvswitch connection tracking sends incorrect flow key for some upcalls
(BZ#2068477)
* Backport upstream rcu commits up to v5.10 (BZ#2069819)
* Packages have been upgraded to a later upstream version: kernel (4.18.0)
(BZ#2036932)
Enhancement:
* zcrypt DD: Toleration for new IBM Z Crypto Hardware (BZ#2054097)
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/):
2029923 - CVE-2021-4083 kernel: fget: check that the fd still exists after getting a ref to it
2051505 - CVE-2022-0492 kernel: cgroups v1 release_agent feature may allow privilege escalation
2056830 - CVE-2022-25636 kernel: heap out of bounds write in nf_dup_netdev.c
6. Package List:
Red Hat Enterprise Linux BaseOS EUS (v.8.4):
Source:
kernel-4.18.0-305.45.1.el8_4.src.rpm
aarch64:
bpftool-4.18.0-305.45.1.el8_4.aarch64.rpm
bpftool-debuginfo-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-core-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-cross-headers-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-debug-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-debug-core-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-debug-debuginfo-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-debug-devel-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-debug-modules-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-debug-modules-extra-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-debuginfo-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-devel-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-headers-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-modules-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-modules-extra-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-tools-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-tools-debuginfo-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-tools-libs-4.18.0-305.45.1.el8_4.aarch64.rpm
perf-4.18.0-305.45.1.el8_4.aarch64.rpm
perf-debuginfo-4.18.0-305.45.1.el8_4.aarch64.rpm
python3-perf-4.18.0-305.45.1.el8_4.aarch64.rpm
python3-perf-debuginfo-4.18.0-305.45.1.el8_4.aarch64.rpm
noarch:
kernel-abi-stablelists-4.18.0-305.45.1.el8_4.noarch.rpm
kernel-doc-4.18.0-305.45.1.el8_4.noarch.rpm
ppc64le:
bpftool-4.18.0-305.45.1.el8_4.ppc64le.rpm
bpftool-debuginfo-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-core-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-cross-headers-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-debug-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-debug-core-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-debug-devel-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-debug-modules-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-debuginfo-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-devel-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-headers-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-modules-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-modules-extra-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-tools-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-tools-libs-4.18.0-305.45.1.el8_4.ppc64le.rpm
perf-4.18.0-305.45.1.el8_4.ppc64le.rpm
perf-debuginfo-4.18.0-305.45.1.el8_4.ppc64le.rpm
python3-perf-4.18.0-305.45.1.el8_4.ppc64le.rpm
python3-perf-debuginfo-4.18.0-305.45.1.el8_4.ppc64le.rpm
s390x:
bpftool-4.18.0-305.45.1.el8_4.s390x.rpm
bpftool-debuginfo-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-core-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-cross-headers-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-debug-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-debug-core-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-debug-debuginfo-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-debug-devel-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-debug-modules-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-debug-modules-extra-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-debuginfo-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-devel-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-headers-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-modules-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-modules-extra-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-tools-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-tools-debuginfo-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-zfcpdump-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-zfcpdump-core-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-zfcpdump-devel-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-zfcpdump-modules-4.18.0-305.45.1.el8_4.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-305.45.1.el8_4.s390x.rpm
perf-4.18.0-305.45.1.el8_4.s390x.rpm
perf-debuginfo-4.18.0-305.45.1.el8_4.s390x.rpm
python3-perf-4.18.0-305.45.1.el8_4.s390x.rpm
python3-perf-debuginfo-4.18.0-305.45.1.el8_4.s390x.rpm
x86_64:
bpftool-4.18.0-305.45.1.el8_4.x86_64.rpm
bpftool-debuginfo-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-core-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-cross-headers-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-debug-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-debug-core-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-debug-debuginfo-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-debug-devel-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-debug-modules-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-debug-modules-extra-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-debuginfo-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-devel-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-headers-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-modules-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-modules-extra-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-tools-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-tools-debuginfo-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-tools-libs-4.18.0-305.45.1.el8_4.x86_64.rpm
perf-4.18.0-305.45.1.el8_4.x86_64.rpm
perf-debuginfo-4.18.0-305.45.1.el8_4.x86_64.rpm
python3-perf-4.18.0-305.45.1.el8_4.x86_64.rpm
python3-perf-debuginfo-4.18.0-305.45.1.el8_4.x86_64.rpm
Red Hat CodeReady Linux Builder EUS (v. 8.4):
aarch64:
bpftool-debuginfo-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-debug-debuginfo-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-debuginfo-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-tools-debuginfo-4.18.0-305.45.1.el8_4.aarch64.rpm
kernel-tools-libs-devel-4.18.0-305.45.1.el8_4.aarch64.rpm
perf-debuginfo-4.18.0-305.45.1.el8_4.aarch64.rpm
python3-perf-debuginfo-4.18.0-305.45.1.el8_4.aarch64.rpm
ppc64le:
bpftool-debuginfo-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-debuginfo-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-305.45.1.el8_4.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-305.45.1.el8_4.ppc64le.rpm
perf-debuginfo-4.18.0-305.45.1.el8_4.ppc64le.rpm
python3-perf-debuginfo-4.18.0-305.45.1.el8_4.ppc64le.rpm
x86_64:
bpftool-debuginfo-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-debug-debuginfo-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-debuginfo-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-tools-debuginfo-4.18.0-305.45.1.el8_4.x86_64.rpm
kernel-tools-libs-devel-4.18.0-305.45.1.el8_4.x86_64.rpm
perf-debuginfo-4.18.0-305.45.1.el8_4.x86_64.rpm
python3-perf-debuginfo-4.18.0-305.45.1.el8_4.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-2021-4083
https://access.redhat.com/security/cve/CVE-2022-0492
https://access.redhat.com/security/cve/CVE-2022-25636
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.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=YgRM
- -----END PGP SIGNATURE-----
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=F/bL
-----END PGP SIGNATURE-----