ELSA-2021-2570: Security update for 20 packages

ELSA-2021-2570, released July 1, 2021, fixes 2 CVEs across 20 products. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

7.8

Base score, 0 to 10

Highest EPSS

0.0083

57th percentile

Priority of the 2 CVEs

Patch now 0
                                Urgent 0
                                High 1
                                Routine 1

Fixed package versions

Product	Release	Fixed in
bpftool	ol 8	0:4.18.0-305.7.1.el8_4
kernel	ol 8	0:4.18.0-305.7.1.el8_4
kernel-abi-stablelists	ol 8	0:4.18.0-305.7.1.el8_4
kernel-core	ol 8	0:4.18.0-305.7.1.el8_4
kernel-cross-headers	ol 8	0:4.18.0-305.7.1.el8_4
kernel-debug	ol 8	0:4.18.0-305.7.1.el8_4
kernel-debug-core	ol 8	0:4.18.0-305.7.1.el8_4
kernel-debug-devel	ol 8	0:4.18.0-305.7.1.el8_4
kernel-debug-modules	ol 8	0:4.18.0-305.7.1.el8_4
kernel-debug-modules-extra	ol 8	0:4.18.0-305.7.1.el8_4
kernel-devel	ol 8	0:4.18.0-305.7.1.el8_4
kernel-doc	ol 8	0:4.18.0-305.7.1.el8_4
kernel-headers	ol 8	0:4.18.0-305.7.1.el8_4
kernel-modules	ol 8	0:4.18.0-305.7.1.el8_4
kernel-modules-extra	ol 8	0:4.18.0-305.7.1.el8_4
kernel-tools	ol 8	0:4.18.0-305.7.1.el8_4
kernel-tools-libs	ol 8	0:4.18.0-305.7.1.el8_4
kernel-tools-libs-devel	ol 8	0:4.18.0-305.7.1.el8_4
perf	ol 8	0:4.18.0-305.7.1.el8_4
python3-perf	ol 8	0:4.18.0-305.7.1.el8_4

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2021-33034	kernel-rt-debug-devel: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high...	7.8	0.0083	None reported
Routine	CVE-2020-26541	kernel-rt-kvm: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high...	6.5	0.0053	None reported

Also fixes CVE-2021-33034

ELSA-2021-9362
kernel-uek, kernel-uek-debug, kernel-uek-debug-devel and 6 more on ol 8
ELSA-2021-9363
kernel-uek-container, kernel-uek-container-debug on ol 8
RHSA-2021:2570
bpftool, kernel, kernel-abi-stablelists and 20 more on RHEL 8
RHSA-2021:2599
kernel-rt, kernel-rt-core, kernel-rt-debug and 9 more on RHEL 8
RHSA-2021:2563
kpatch-patch-4_18_0-305, kpatch-patch-4_18_0-305_3_1 on RHEL 8

Vendor advisory

https://linux.oracle.com/errata/ELSA-2021-2570.html

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/fix/linux/elsa-2021-2570">ELSA-2021-2570 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Which servers are still behind?

Patchblox compares the installed package on every Linux machine against the fixed version for its release, including machines reported through Azure Update Manager.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.