RHSA-2021:0184: Important: kernel security and bug fix update

Published Jan 19, 2021
·
Updated

The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): kernel: Local buffer overflow in ctnetlinkparsetuplefilter in net/netfilter/nfconntracknetlink.c (CVE-2020-25211) kernel: information exposure in drivers/char/random.c and kernel/time/timer.c (CVE-2020-16166) 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): RHEL8.1 - net/smc: fix silent data corruption in SMC (BZ#1882242) RHEL8.1 - Random memory corruption may occur due to incorrect tlbflush (BZ#1899210) RHEL8.3 Beta - RHEL8.3 hangs on dbginfo.sh execution, crash dump generated (mm-) (BZ#1903021) [Azure][RHEL8] IP forwarding issue in netvsc (BZ#1904327)

Affected Software

105 affected componentsFixes available
redhat/kernel<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/bpftool<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/bpftool-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-abi-whitelists<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-core<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-cross-headers<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug-core<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug-devel<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug-modules<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug-modules-extra<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-devel<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-doc<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-headers<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-modules<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-modules-extra<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-tools<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-tools-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-tools-libs<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/perf<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/perf-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/python3-perf<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/python3-perf-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/bpftool<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/bpftool-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-core<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-cross-headers<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug-core<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug-devel<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug-modules<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug-modules-extra<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debuginfo-common-s390x<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-devel<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-headers<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-modules<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-modules-extra<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-tools<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-tools-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-zfcpdump<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-zfcpdump-core<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-zfcpdump-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-zfcpdump-devel<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-zfcpdump-modules<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-zfcpdump-modules-extra<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/perf<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/perf-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/python3-perf<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/python3-perf-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/bpftool<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/bpftool-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-core<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-cross-headers<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug-core<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug-devel<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug-modules<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debug-modules-extra<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-debuginfo-common-ppc64le<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-devel<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-headers<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-modules<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-modules-extra<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-tools<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-tools-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-tools-libs<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/perf<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/perf-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/python3-perf<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/python3-perf-debuginfo<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/bpftool<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/bpftool-debuginfo<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-core<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-cross-headers<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-debug<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-debug-core<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-debug-debuginfo<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-debug-devel<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-debug-modules<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-debug-modules-extra<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-debuginfo<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-debuginfo-common-aarch64<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-devel<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-headers<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-modules<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-modules-extra<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-tools<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-tools-debuginfo<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-tools-libs<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/perf<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/perf-debuginfo<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/python3-perf<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/python3-perf-debuginfo<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa
redhat/kernel-tools-libs-devel<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-tools-libs-devel<4.18.0-147.38.1.el8_1
4.18.0-147.38.1.el8_1
redhat/kernel-tools-libs-devel<4.18.0-147.38.1.el8_1.aa
4.18.0-147.38.1.el8_1.aa

Remediation

Event History

Jan 19, 2021
Advisory Published
via Red Hat·12:00 AM
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Frequently Asked Questions

1

What are the security vulnerabilities addressed in RHSA-2021:0184?

RHSA-2021:0184 addresses a local buffer overflow in ctnetlink_parse_tuple_filter (CVE-2020-25211) and an information exposure in drivers.

2

How can I resolve the vulnerabilities associated with RHSA-2021:0184?

To fix vulnerabilities associated with RHSA-2021:0184, upgrade to the kernel package version 4.18.0-147.38.1.el8_1 or later.

3

What is the severity level of RHSA-2021:0184?

The severity level of RHSA-2021:0184 is classified as important.

4

Which packages are affected by RHSA-2021:0184?

RHSA-2021:0184 affects several packages, including kernel, bpftool, and kernel-core among others.

5

What kernel version includes the fix for RHSA-2021:0184?

The fix for RHSA-2021:0184 is included in kernel version 4.18.0-147.38.1.el8_1.

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