Red Hat Enterprise Linux 8.1 RHSA-2022-0823 Crucial: Kernel Security Patch
Mar 10, 2022
•
LinuxSecurity Advisories
6 - 11 min read
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,
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==================================================================== Red Hat Security Advisory
Synopsis: Important: kernel security update
Advisory ID: RHSA-2022:0823-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:0823
Issue date: 2022-03-10
CVE Names: CVE-2021-0920 CVE-2021-4028 CVE-2021-4083
CVE-2022-0330 CVE-2022-0492 CVE-2022-0847
CVE-2022-22942
====================================================================
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):
* kernel: improper initialization of the "flags" member of the new
pipe_buffer (CVE-2022-0847)
* kernel: Use After Free in unix_gc() which could result in a local
privilege escalation (CVE-2021-0920)
* kernel: use-after-free in RDMA listen() (CVE-2021-4028)
* kernel: fget: check that the fd still exists after getting a ref to it
(CVE-2021-4083)
* kernel: possible privileges escalation due to missing TLB flush
(CVE-2022-0330)
* kernel: cgroups v1 release_agent feature may allow privilege escalation
(CVE-2022-0492)
* kernel: failing usercopy allows for use-after-free exploitation
(CVE-2022-22942)
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/):
2027201 - CVE-2021-4028 kernel: use-after-free in RDMA listen()
2029923 - CVE-2021-4083 kernel: fget: check that the fd still exists after getting a ref to it
2031930 - CVE-2021-0920 kernel: Use After Free in unix_gc() which could result in a local privilege escalation
2042404 - CVE-2022-0330 kernel: possible privileges escalation due to missing TLB flush
2044809 - CVE-2022-22942 kernel: failing usercopy allows for use-after-free exploitation
2051505 - CVE-2022-0492 kernel: cgroups v1 release_agent feature may allow privilege escalation
2060795 - CVE-2022-0847 kernel: improper initialization of the "flags" member of the new pipe_buffer
6. Package List:
Red Hat Enterprise Linux BaseOS E4S (v. 8.1):
Source:
kernel-4.18.0-147.64.1.el8_1.src.rpm
aarch64:
bpftool-4.18.0-147.64.1.el8_1.aarch64.rpm
bpftool-debuginfo-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-core-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-cross-headers-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-debug-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-debug-core-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-debug-debuginfo-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-debug-devel-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-debug-modules-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-debug-modules-extra-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-debuginfo-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-devel-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-headers-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-modules-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-modules-extra-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-tools-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-tools-debuginfo-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-tools-libs-4.18.0-147.64.1.el8_1.aarch64.rpm
perf-4.18.0-147.64.1.el8_1.aarch64.rpm
perf-debuginfo-4.18.0-147.64.1.el8_1.aarch64.rpm
python3-perf-4.18.0-147.64.1.el8_1.aarch64.rpm
python3-perf-debuginfo-4.18.0-147.64.1.el8_1.aarch64.rpm
noarch:
kernel-abi-whitelists-4.18.0-147.64.1.el8_1.noarch.rpm
kernel-doc-4.18.0-147.64.1.el8_1.noarch.rpm
ppc64le:
bpftool-4.18.0-147.64.1.el8_1.ppc64le.rpm
bpftool-debuginfo-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-core-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-cross-headers-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-debug-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-debug-core-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-debug-devel-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-debug-modules-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-debuginfo-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-devel-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-headers-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-modules-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-modules-extra-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-tools-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-147.64.1.el8_1.ppc64le.rpm
kernel-tools-libs-4.18.0-147.64.1.el8_1.ppc64le.rpm
perf-4.18.0-147.64.1.el8_1.ppc64le.rpm
perf-debuginfo-4.18.0-147.64.1.el8_1.ppc64le.rpm
python3-perf-4.18.0-147.64.1.el8_1.ppc64le.rpm
python3-perf-debuginfo-4.18.0-147.64.1.el8_1.ppc64le.rpm
s390x:
bpftool-4.18.0-147.64.1.el8_1.s390x.rpm
bpftool-debuginfo-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-core-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-cross-headers-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-debug-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-debug-core-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-debug-debuginfo-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-debug-devel-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-debug-modules-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-debug-modules-extra-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-debuginfo-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-devel-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-headers-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-modules-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-modules-extra-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-tools-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-tools-debuginfo-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-zfcpdump-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-zfcpdump-core-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-zfcpdump-devel-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-zfcpdump-modules-4.18.0-147.64.1.el8_1.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-147.64.1.el8_1.s390x.rpm
perf-4.18.0-147.64.1.el8_1.s390x.rpm
perf-debuginfo-4.18.0-147.64.1.el8_1.s390x.rpm
python3-perf-4.18.0-147.64.1.el8_1.s390x.rpm
python3-perf-debuginfo-4.18.0-147.64.1.el8_1.s390x.rpm
x86_64:
bpftool-4.18.0-147.64.1.el8_1.x86_64.rpm
bpftool-debuginfo-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-core-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-cross-headers-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-debug-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-debug-core-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-debug-debuginfo-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-debug-devel-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-debug-modules-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-debug-modules-extra-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-debuginfo-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-devel-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-headers-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-modules-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-modules-extra-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-tools-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-tools-debuginfo-4.18.0-147.64.1.el8_1.x86_64.rpm
kernel-tools-libs-4.18.0-147.64.1.el8_1.x86_64.rpm
perf-4.18.0-147.64.1.el8_1.x86_64.rpm
perf-debuginfo-4.18.0-147.64.1.el8_1.x86_64.rpm
python3-perf-4.18.0-147.64.1.el8_1.x86_64.rpm
python3-perf-debuginfo-4.18.0-147.64.1.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-2021-0920
https://access.redhat.com/security/cve/CVE-2021-4028
https://access.redhat.com/security/cve/CVE-2021-4083
https://access.redhat.com/security/cve/CVE-2022-0330
https://access.redhat.com/security/cve/CVE-2022-0492
https://access.redhat.com/security/cve/CVE-2022-0847
https://access.redhat.com/security/cve/CVE-2022-22942
https://access.redhat.com/security/updates/classification#important
https://access.redhat.com/security/vulnerabilities/RHSB-2022-002
8. Contact:
The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact
Copyright 2022 Red Hat, Inc.
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Red Hat Enterprise Linux 8.1 RHSA-2022-0823 Crucial: Kernel Security Patch
red hat
March 10, 2022
An update for kernel is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions
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.
Summary
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* kernel: improper initialization of the "flags" member of the new
pipe_buffer (CVE-2022-0847)
* kernel: Use After Free in unix_gc() which could result in a local
privilege escalation (CVE-2021-0920)
* kernel: use-after-free in RDMA listen() (CVE-2021-4028)
* kernel: fget: check that the fd still exists after getting a ref to it
(CVE-2021-4083)
* kernel: possible privileges escalation due to missing TLB flush
(CVE-2022-0330)
* kernel: cgroups v1 release_agent feature may allow privilege escalation
(CVE-2022-0492)
* kernel: failing usercopy allows for use-after-free exploitation
(CVE-2022-22942)
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.
References
https://access.redhat.com/security/cve/CVE-2021-0920 https://access.redhat.com/security/cve/CVE-2021-4028 https://access.redhat.com/security/cve/CVE-2021-4083 https://access.redhat.com/security/cve/CVE-2022-0330 https://access.redhat.com/security/cve/CVE-2022-0492 https://access.redhat.com/security/cve/CVE-2022-0847 https://access.redhat.com/security/cve/CVE-2022-22942 https://access.redhat.com/security/updates/classification#important https://access.redhat.com/security/vulnerabilities/RHSB-2022-002
Package List
Red Hat Enterprise Linux BaseOS E4S (v. 8.1):
Source:
kernel-4.18.0-147.64.1.el8_1.src.rpm
aarch64:
bpftool-4.18.0-147.64.1.el8_1.aarch64.rpm
bpftool-debuginfo-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-core-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-cross-headers-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-debug-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-debug-core-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-debug-debuginfo-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-debug-devel-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-debug-modules-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-debug-modules-extra-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-debuginfo-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-devel-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-headers-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-modules-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-modules-extra-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-tools-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-tools-debuginfo-4.18.0-147.64.1.el8_1.aarch64.rpm
kernel-tools-libs-4.18.0-147.64.1.el8_1.aarch64.rpm
perf-4.18.0-147.64.1.el8_1.aarch64.rpm
perf-debuginfo-4.18.0-147.64.1.el8_1.aarch64.rpm
python3-perf-4.18.0-147.64.1.el8_1.aarch64.rpm
Read the Full Advisory
Severity
important
Lowest
Low
Medium
High
Critical
Advisory ID: RHSA-2022:0823-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:0823
Issue date: 2022-03-10
Topic
An update for kernel is now available for Red Hat Enterprise Linux 8.1Update Services for SAP Solutions.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 Enterprise Linux BaseOS E4S (v. 8.1) - aarch64, noarch, ppc64le, s390x, x86_64
Bugs Fixed
2027201 - CVE-2021-4028 kernel: use-after-free in RDMA listen()
2029923 - CVE-2021-4083 kernel: fget: check that the fd still exists after getting a ref to it
2031930 - CVE-2021-0920 kernel: Use After Free in unix_gc() which could result in a local privilege escalation
2042404 - CVE-2022-0330 kernel: possible privileges escalation due to missing TLB flush
2044809 - CVE-2022-22942 kernel: failing usercopy allows for use-after-free exploitation
2051505 - CVE-2022-0492 kernel: cgroups v1 release_agent feature may allow privilege escalation
2060795 - CVE-2022-0847 kernel: improper initialization of the "flags" member of the new pipe_buffer
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