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RedHat: RHSA-2021-1171:01 Important: kernel security and bug fix update

Date 13 Apr 2021
183
Posted By LinuxSecurity Advisories
An update for kernel is now available for Red Hat Enterprise Linux 8.1 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,
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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: kernel security and bug fix update
Advisory ID:       RHSA-2021:1171-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:1171
Issue date:        2021-04-13
CVE Names:         CVE-2021-27363 CVE-2021-27364 CVE-2021-27365 
=====================================================================

1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 8.1
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. 8.1) - aarch64, ppc64le, x86_64
Red Hat Enterprise Linux BaseOS EUS (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: out-of-bounds read in libiscsi module (CVE-2021-27364)

* kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365)

* kernel: iscsi: unrestricted access to sessions and handles
(CVE-2021-27363)

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):

* Upstream Patch for Gracefully handle DMAR units with no supported address
widthsx86/vt-d (BZ#1932201)

* RHEL8.1 Alpha - ISST-LTE:PNV:Witherspoon-DD2.3:woo: KDUMP hang during
shutdown, lpfc loses connection to disks (rootdisk:nvme) (BZ#1934306)

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/):

1930078 - CVE-2021-27365 kernel: heap buffer overflow in the iSCSI subsystem
1930079 - CVE-2021-27363 kernel: iscsi: unrestricted access to sessions and handles
1930080 - CVE-2021-27364 kernel: out-of-bounds read in libiscsi module

6. Package List:

Red Hat Enterprise Linux BaseOS EUS (v. 8.1):

Source:
kernel-4.18.0-147.44.1.el8_1.src.rpm

aarch64:
bpftool-4.18.0-147.44.1.el8_1.aarch64.rpm
bpftool-debuginfo-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-core-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-cross-headers-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-debug-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-debug-core-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-debug-debuginfo-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-debug-devel-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-debug-modules-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-debug-modules-extra-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-debuginfo-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-devel-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-headers-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-modules-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-modules-extra-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-tools-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-tools-debuginfo-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-tools-libs-4.18.0-147.44.1.el8_1.aarch64.rpm
perf-4.18.0-147.44.1.el8_1.aarch64.rpm
perf-debuginfo-4.18.0-147.44.1.el8_1.aarch64.rpm
python3-perf-4.18.0-147.44.1.el8_1.aarch64.rpm
python3-perf-debuginfo-4.18.0-147.44.1.el8_1.aarch64.rpm

noarch:
kernel-abi-whitelists-4.18.0-147.44.1.el8_1.noarch.rpm
kernel-doc-4.18.0-147.44.1.el8_1.noarch.rpm

ppc64le:
bpftool-4.18.0-147.44.1.el8_1.ppc64le.rpm
bpftool-debuginfo-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-core-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-cross-headers-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-debug-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-debug-core-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-debug-devel-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-debug-modules-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-debuginfo-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-devel-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-headers-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-modules-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-modules-extra-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-tools-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-tools-libs-4.18.0-147.44.1.el8_1.ppc64le.rpm
perf-4.18.0-147.44.1.el8_1.ppc64le.rpm
perf-debuginfo-4.18.0-147.44.1.el8_1.ppc64le.rpm
python3-perf-4.18.0-147.44.1.el8_1.ppc64le.rpm
python3-perf-debuginfo-4.18.0-147.44.1.el8_1.ppc64le.rpm

s390x:
bpftool-4.18.0-147.44.1.el8_1.s390x.rpm
bpftool-debuginfo-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-core-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-cross-headers-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-debug-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-debug-core-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-debug-debuginfo-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-debug-devel-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-debug-modules-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-debug-modules-extra-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-debuginfo-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-debuginfo-common-s390x-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-devel-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-headers-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-modules-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-modules-extra-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-tools-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-tools-debuginfo-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-zfcpdump-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-zfcpdump-core-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-zfcpdump-debuginfo-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-zfcpdump-devel-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-zfcpdump-modules-4.18.0-147.44.1.el8_1.s390x.rpm
kernel-zfcpdump-modules-extra-4.18.0-147.44.1.el8_1.s390x.rpm
perf-4.18.0-147.44.1.el8_1.s390x.rpm
perf-debuginfo-4.18.0-147.44.1.el8_1.s390x.rpm
python3-perf-4.18.0-147.44.1.el8_1.s390x.rpm
python3-perf-debuginfo-4.18.0-147.44.1.el8_1.s390x.rpm

x86_64:
bpftool-4.18.0-147.44.1.el8_1.x86_64.rpm
bpftool-debuginfo-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-core-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-cross-headers-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-debug-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-debug-core-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-debug-debuginfo-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-debug-devel-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-debug-modules-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-debug-modules-extra-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-debuginfo-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-devel-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-headers-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-modules-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-modules-extra-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-tools-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-tools-debuginfo-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-tools-libs-4.18.0-147.44.1.el8_1.x86_64.rpm
perf-4.18.0-147.44.1.el8_1.x86_64.rpm
perf-debuginfo-4.18.0-147.44.1.el8_1.x86_64.rpm
python3-perf-4.18.0-147.44.1.el8_1.x86_64.rpm
python3-perf-debuginfo-4.18.0-147.44.1.el8_1.x86_64.rpm

Red Hat CodeReady Linux Builder EUS (v. 8.1):

aarch64:
bpftool-debuginfo-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-debug-debuginfo-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-debuginfo-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-debuginfo-common-aarch64-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-tools-debuginfo-4.18.0-147.44.1.el8_1.aarch64.rpm
kernel-tools-libs-devel-4.18.0-147.44.1.el8_1.aarch64.rpm
perf-debuginfo-4.18.0-147.44.1.el8_1.aarch64.rpm
python3-perf-debuginfo-4.18.0-147.44.1.el8_1.aarch64.rpm

ppc64le:
bpftool-debuginfo-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-debuginfo-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-147.44.1.el8_1.ppc64le.rpm
kernel-tools-libs-devel-4.18.0-147.44.1.el8_1.ppc64le.rpm
perf-debuginfo-4.18.0-147.44.1.el8_1.ppc64le.rpm
python3-perf-debuginfo-4.18.0-147.44.1.el8_1.ppc64le.rpm

x86_64:
bpftool-debuginfo-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-debug-debuginfo-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-debuginfo-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-tools-debuginfo-4.18.0-147.44.1.el8_1.x86_64.rpm
kernel-tools-libs-devel-4.18.0-147.44.1.el8_1.x86_64.rpm
perf-debuginfo-4.18.0-147.44.1.el8_1.x86_64.rpm
python3-perf-debuginfo-4.18.0-147.44.1.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-2021-27363
https://access.redhat.com/security/cve/CVE-2021-27364
https://access.redhat.com/security/cve/CVE-2021-27365
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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