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AUSCERT External Security Bulletin Redistribution
ESB-2022.2289
kernel security and bug fix update
12 May 2022
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: kernel
Publisher: Red Hat
Operating System: Red Hat
Resolution: Patch/Upgrade
CVE Names: CVE-2022-0492 CVE-2021-4028
Original Bulletin:
https://access.redhat.com/errata/RHSA-2022:2186
Comment: CVSS (Max): 7.0 CVE-2022-0492 (CVSS:3.1/AV:L/AC:H/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:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2022:2186-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:2186
Issue date: 2022-05-11
CVE Names: CVE-2021-4028 CVE-2022-0492
=====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 7.6
Advanced Update Support, Red Hat Enterprise Linux 7.6 Telco Extended Update
Support, and Red Hat Enterprise Linux 7.6 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 Server AUS (v. 7.6) - noarch, x86_64
Red Hat Enterprise Linux Server E4S (v. 7.6) - noarch, ppc64le, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.6) - x86_64
Red Hat Enterprise Linux Server Optional E4S (v. 7.6) - ppc64le, x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 7.6) - x86_64
Red Hat Enterprise Linux Server TUS (v. 7.6) - noarch, x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* kernel: use-after-free in RDMA listen() (CVE-2021-4028)
* kernel: cgroups v1 release_agent feature may allow privilege escalation
(CVE-2022-0492)
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):
* Extend /sys/devices/system/cpu/smt/* interface to all architectures
[7.6.z] (BZ#2060991)
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/):
2027201 - CVE-2021-4028 kernel: use-after-free in RDMA listen()
2051505 - CVE-2022-0492 kernel: cgroups v1 release_agent feature may allow privilege escalation
6. Package List:
Red Hat Enterprise Linux Server AUS (v. 7.6):
Source:
kernel-3.10.0-957.94.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-957.94.1.el7.noarch.rpm
kernel-doc-3.10.0-957.94.1.el7.noarch.rpm
x86_64:
bpftool-3.10.0-957.94.1.el7.x86_64.rpm
kernel-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debug-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.94.1.el7.x86_64.rpm
kernel-devel-3.10.0-957.94.1.el7.x86_64.rpm
kernel-headers-3.10.0-957.94.1.el7.x86_64.rpm
kernel-tools-3.10.0-957.94.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-957.94.1.el7.x86_64.rpm
perf-3.10.0-957.94.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
python-perf-3.10.0-957.94.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server E4S (v. 7.6):
Source:
kernel-3.10.0-957.94.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-957.94.1.el7.noarch.rpm
kernel-doc-3.10.0-957.94.1.el7.noarch.rpm
ppc64le:
kernel-3.10.0-957.94.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-957.94.1.el7.ppc64le.rpm
kernel-debug-3.10.0-957.94.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-957.94.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-957.94.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-957.94.1.el7.ppc64le.rpm
kernel-devel-3.10.0-957.94.1.el7.ppc64le.rpm
kernel-headers-3.10.0-957.94.1.el7.ppc64le.rpm
kernel-tools-3.10.0-957.94.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-957.94.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-957.94.1.el7.ppc64le.rpm
perf-3.10.0-957.94.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-957.94.1.el7.ppc64le.rpm
python-perf-3.10.0-957.94.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-957.94.1.el7.ppc64le.rpm
x86_64:
kernel-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debug-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.94.1.el7.x86_64.rpm
kernel-devel-3.10.0-957.94.1.el7.x86_64.rpm
kernel-headers-3.10.0-957.94.1.el7.x86_64.rpm
kernel-tools-3.10.0-957.94.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-957.94.1.el7.x86_64.rpm
perf-3.10.0-957.94.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
python-perf-3.10.0-957.94.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server TUS (v. 7.6):
Source:
kernel-3.10.0-957.94.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-957.94.1.el7.noarch.rpm
kernel-doc-3.10.0-957.94.1.el7.noarch.rpm
x86_64:
bpftool-3.10.0-957.94.1.el7.x86_64.rpm
kernel-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debug-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.94.1.el7.x86_64.rpm
kernel-devel-3.10.0-957.94.1.el7.x86_64.rpm
kernel-headers-3.10.0-957.94.1.el7.x86_64.rpm
kernel-tools-3.10.0-957.94.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-957.94.1.el7.x86_64.rpm
perf-3.10.0-957.94.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
python-perf-3.10.0-957.94.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 7.6):
x86_64:
kernel-debug-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.94.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-957.94.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional E4S (v. 7.6):
ppc64le:
kernel-debug-debuginfo-3.10.0-957.94.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-957.94.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-957.94.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-957.94.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-957.94.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-957.94.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-957.94.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-957.94.1.el7.ppc64le.rpm
x86_64:
kernel-debug-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.94.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-957.94.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional TUS (v. 7.6):
x86_64:
kernel-debug-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.94.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-957.94.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.94.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.94.1.el7.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-2021-4028
https://access.redhat.com/security/cve/CVE-2022-0492
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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