Home / mailings [RHSA-2022:5220-01] Important: kernel security and bug fix update
Posted on 28 June 2022
RedHat===================================================================== Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2022:5220-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:5220
Issue date: 2022-06-28
CVE Names: CVE-2020-29368 CVE-2022-1012 CVE-2022-1729
CVE-2022-1966 CVE-2022-27666
=====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 8.2
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. 8.2) - aarch64, ppc64le, x86_64
Red Hat Enterprise Linux BaseOS EUS (v. 8.2) - 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: Small table perturb size in the TCP source port generation
algorithm can lead to information leak (CVE-2022-1012)
* kernel: race condition in perf_event_open leads to privilege escalation
(CVE-2022-1729)
* kernel: a use-after-free write in the netfilter subsystem can lead to
privilege escalation to root (CVE-2022-1966)
* kernel: buffer overflow in IPsec ESP transformation code (CVE-2022-27666)
* kernel: the copy-on-write implementation can grant unintended write
access because of a race condition in a THP mapcount check (CVE-2020-29368)
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):
* slub corruption during LPM of hnv interface (BZ#2081252)
* sleeping function called from invalid context at
kernel/locking/spinlock_rt.c:35 (BZ#2082090)
* Backport request of "genirq: use rcu in kstat_irqs_usr()" (BZ#2083310)
* kernel memory leak while freeing nested actions (BZ#2086604)
* dm: sync rhel-8.6 with upstream 5.13 through 5.16 fixes and improvements
(BZ#2088036)
* NFS processing deadlock in low memory condition (BZ#2094459)
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/):
1903244 - CVE-2020-29368 kernel: the copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check
2061633 - CVE-2022-27666 kernel: buffer overflow in IPsec ESP transformation code
2064604 - CVE-2022-1012 kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak
2086753 - CVE-2022-1729 kernel: race condition in perf_event_open leads to privilege escalation
2092427 - CVE-2022-1966 kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root
6. Package List:
Red Hat Enterprise Linux BaseOS EUS (v. 8.2):
Source:
kernel-4.18.0-193.87.1.el8_2.src.rpm
aarch64:
bpftool-4.18.0-193.87.1.el8_2.aarch64.rpm
bpftool-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-core-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-cross-headers-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-debug-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-debug-core-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-debug-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-debug-devel-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-debug-modules-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-debug-modules-extra-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-devel-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-headers-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-modules-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-modules-extra-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-tools-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-tools-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-tools-libs-4.18.0-193.87.1.el8_2.aarch64.rpm
perf-4.18.0-193.87.1.el8_2.aarch64.rpm
perf-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm
python3-perf-4.18.0-193.87.1.el8_2.aarch64.rpm
python3-perf-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm
noarch:
kernel-abi-whitelists-4.18.0-193.87.1.el8_2.noarch.rpm
kernel-doc-4.18.0-193.87.1.el8_2.noarch.rpm
ppc64le:
bpftool-4.18.0-193.87.1.el8_2.ppc64le.rpm
bpftool-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-core-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-cross-headers-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-debug-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-debug-core-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-debug-devel-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-debug-modules-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-devel-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-headers-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-modules-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-modules-extra-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-tools-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-tools-libs-4.18.0-193.87.1.el8_2.ppc64le.rpm
perf-4.18.0-193.87.1.el8_2.ppc64le.rpm
perf-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm
python3-perf-4.18.0-193.87.1.el8_2.ppc64le.rpm
python3-perf-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm
s390x:
bpftool-4.18.0-193.87.1.el8_2.s390x.rpm
bpftool-debuginfo-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-core-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-cross-headers-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-debug-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-debug-core-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-debug-debuginfo-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-debug-devel-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-debug-modules-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-debug-modules-extra-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-debuginfo-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-devel-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-headers-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-modules-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-modules-extra-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-tools-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-tools-debuginfo-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-zfcpdump-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-zfcpdump-core-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-zfcpdump-devel-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-zfcpdump-modules-4.18.0-193.87.1.el8_2.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-193.87.1.el8_2.s390x.rpm
perf-4.18.0-193.87.1.el8_2.s390x.rpm
perf-debuginfo-4.18.0-193.87.1.el8_2.s390x.rpm
python3-perf-4.18.0-193.87.1.el8_2.s390x.rpm
python3-perf-debuginfo-4.18.0-193.87.1.el8_2.s390x.rpm
x86_64:
bpftool-4.18.0-193.87.1.el8_2.x86_64.rpm
bpftool-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-core-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-cross-headers-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-debug-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-debug-core-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-debug-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-debug-devel-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-debug-modules-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-debug-modules-extra-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-devel-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-headers-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-modules-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-modules-extra-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-tools-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-tools-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-tools-libs-4.18.0-193.87.1.el8_2.x86_64.rpm
perf-4.18.0-193.87.1.el8_2.x86_64.rpm
perf-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm
python3-perf-4.18.0-193.87.1.el8_2.x86_64.rpm
python3-perf-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm
Red Hat CodeReady Linux Builder EUS (v. 8.2):
aarch64:
bpftool-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-debug-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-tools-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm
kernel-tools-libs-devel-4.18.0-193.87.1.el8_2.aarch64.rpm
perf-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm
python3-perf-debuginfo-4.18.0-193.87.1.el8_2.aarch64.rpm
ppc64le:
bpftool-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-193.87.1.el8_2.ppc64le.rpm
perf-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm
python3-perf-debuginfo-4.18.0-193.87.1.el8_2.ppc64le.rpm
x86_64:
bpftool-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-debug-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-tools-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm
kernel-tools-libs-devel-4.18.0-193.87.1.el8_2.x86_64.rpm
perf-debuginfo-4.18.0-193.87.1.el8_2.x86_64.rpm
python3-perf-debuginfo-4.18.0-193.87.1.el8_2.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-2020-29368
https://access.redhat.com/security/cve/CVE-2022-1012
https://access.redhat.com/security/cve/CVE-2022-1729
https://access.redhat.com/security/cve/CVE-2022-1966
https://access.redhat.com/security/cve/CVE-2022-27666
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.
