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Red Hat Security Advisory
Synopsis: Important: kernel security, bug fix, and enhancement update
Advisory ID: RHSA-2021:3363-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3363
Issue date: 2021-08-31
CVE Names: CVE-2021-3609 CVE-2021-22543 CVE-2021-22555
CVE-2021-32399
====================================================================
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: race condition in net/can/bcm.c leads to local privilege
escalation (CVE-2021-3609)
* kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO
checks (CVE-2021-22543)
* kernel: out-of-bounds write in xt_compat_target_from_user() in
net/netfilter/x_tables.c (CVE-2021-22555)
* kernel: race condition for removal of the HCI controller (CVE-2021-32399)
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):
* [Regression] RHEL8.2 - ISST-LTE:pVM:diapvmlp83:sum:memory DLPAR fails to
add memory on multiple trials[mm/memory_hotplug.c:1163] (mm-) (BZ#1930169)
* Every server is displaying the same power levels for all of our i40e 25G
interfaces. 10G interfaces seem to be correct. Ethtool version is 5.0
(BZ#1967100)
* s390/uv: Fix handling of length extensions (BZ#1975657)
* RHEL 8.3 using FCOE via a FastLinQ QL45000 card will not manually scan in
LUN from Target_id's over 8 (BZ#1976265)
* Backport "tick/nohz: Conditionally restart tick on idle exit" to RHEL 8.5
(BZ#1978711)
* rhel8.3: phase 2 netfilter backports from upstream (BZ#1980323)
* xfrm: backports from upstream (BZ#1981841)
Enhancement(s):
* [8.2.z] Incorrect parsing of ACPI HMAT table reports incorrect kernel
WARNING taint (BZ#1943702)
* Only selected patches from [IBM 8.4 FEAT] ibmvnic: Backport FW950 and
assorted bug fixes (BZ#1980795)
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/):
1965461 - CVE-2021-22543 kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks
1970807 - CVE-2021-32399 kernel: race condition for removal of the HCI controller
1971651 - CVE-2021-3609 kernel: race condition in net/can/bcm.c leads to local privilege escalation
1980101 - CVE-2021-22555 kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c
6. Package List:
Red Hat Enterprise Linux BaseOS EUS (v. 8.2):
Source:
kernel-4.18.0-193.64.1.el8_2.src.rpm
aarch64:
bpftool-4.18.0-193.64.1.el8_2.aarch64.rpm
bpftool-debuginfo-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-core-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-cross-headers-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-debug-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-debug-core-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-debug-debuginfo-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-debug-devel-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-debug-modules-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-debug-modules-extra-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-debuginfo-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-devel-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-headers-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-modules-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-modules-extra-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-tools-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-tools-debuginfo-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-tools-libs-4.18.0-193.64.1.el8_2.aarch64.rpm
perf-4.18.0-193.64.1.el8_2.aarch64.rpm
perf-debuginfo-4.18.0-193.64.1.el8_2.aarch64.rpm
python3-perf-4.18.0-193.64.1.el8_2.aarch64.rpm
python3-perf-debuginfo-4.18.0-193.64.1.el8_2.aarch64.rpm
noarch:
kernel-abi-whitelists-4.18.0-193.64.1.el8_2.noarch.rpm
kernel-doc-4.18.0-193.64.1.el8_2.noarch.rpm
ppc64le:
bpftool-4.18.0-193.64.1.el8_2.ppc64le.rpm
bpftool-debuginfo-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-core-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-cross-headers-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-debug-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-debug-core-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-debug-devel-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-debug-modules-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-debuginfo-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-devel-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-headers-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-modules-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-modules-extra-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-tools-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-tools-libs-4.18.0-193.64.1.el8_2.ppc64le.rpm
perf-4.18.0-193.64.1.el8_2.ppc64le.rpm
perf-debuginfo-4.18.0-193.64.1.el8_2.ppc64le.rpm
python3-perf-4.18.0-193.64.1.el8_2.ppc64le.rpm
python3-perf-debuginfo-4.18.0-193.64.1.el8_2.ppc64le.rpm
s390x:
bpftool-4.18.0-193.64.1.el8_2.s390x.rpm
bpftool-debuginfo-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-core-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-cross-headers-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-debug-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-debug-core-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-debug-debuginfo-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-debug-devel-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-debug-modules-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-debug-modules-extra-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-debuginfo-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-devel-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-headers-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-modules-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-modules-extra-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-tools-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-tools-debuginfo-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-zfcpdump-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-zfcpdump-core-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-zfcpdump-devel-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-zfcpdump-modules-4.18.0-193.64.1.el8_2.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-193.64.1.el8_2.s390x.rpm
perf-4.18.0-193.64.1.el8_2.s390x.rpm
perf-debuginfo-4.18.0-193.64.1.el8_2.s390x.rpm
python3-perf-4.18.0-193.64.1.el8_2.s390x.rpm
python3-perf-debuginfo-4.18.0-193.64.1.el8_2.s390x.rpm
x86_64:
bpftool-4.18.0-193.64.1.el8_2.x86_64.rpm
bpftool-debuginfo-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-core-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-cross-headers-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-debug-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-debug-core-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-debug-debuginfo-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-debug-devel-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-debug-modules-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-debug-modules-extra-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-debuginfo-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-devel-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-headers-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-modules-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-modules-extra-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-tools-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-tools-debuginfo-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-tools-libs-4.18.0-193.64.1.el8_2.x86_64.rpm
perf-4.18.0-193.64.1.el8_2.x86_64.rpm
perf-debuginfo-4.18.0-193.64.1.el8_2.x86_64.rpm
python3-perf-4.18.0-193.64.1.el8_2.x86_64.rpm
python3-perf-debuginfo-4.18.0-193.64.1.el8_2.x86_64.rpm
Red Hat CodeReady Linux Builder EUS (v. 8.2):
aarch64:
bpftool-debuginfo-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-debug-debuginfo-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-debuginfo-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-tools-debuginfo-4.18.0-193.64.1.el8_2.aarch64.rpm
kernel-tools-libs-devel-4.18.0-193.64.1.el8_2.aarch64.rpm
perf-debuginfo-4.18.0-193.64.1.el8_2.aarch64.rpm
python3-perf-debuginfo-4.18.0-193.64.1.el8_2.aarch64.rpm
ppc64le:
bpftool-debuginfo-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-debuginfo-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-193.64.1.el8_2.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-193.64.1.el8_2.ppc64le.rpm
perf-debuginfo-4.18.0-193.64.1.el8_2.ppc64le.rpm
python3-perf-debuginfo-4.18.0-193.64.1.el8_2.ppc64le.rpm
x86_64:
bpftool-debuginfo-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-debug-debuginfo-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-debuginfo-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-tools-debuginfo-4.18.0-193.64.1.el8_2.x86_64.rpm
kernel-tools-libs-devel-4.18.0-193.64.1.el8_2.x86_64.rpm
perf-debuginfo-4.18.0-193.64.1.el8_2.x86_64.rpm
python3-perf-debuginfo-4.18.0-193.64.1.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-2021-3609
https://access.redhat.com/security/cve/CVE-2021-22543
https://access.redhat.com/security/cve/CVE-2021-22555
https://access.redhat.com/security/cve/CVE-2021-32399
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <[email protected]>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
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