Linux · Security advisory · February 16, 2021

RHSA-2021:0537: Security update for 12 packages

RHSA-2021:0537, released February 16, 2021, fixes 3 CVEs across 12 products. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Exploitation more likely

Vendor assessment

Highest EPSS

0.0669

93rd percentile

Priority of the 3 CVEs

Patch now 0
                                Urgent 0
                                High 3
                                Routine 0

Fixed package versions

Product	Release	Fixed in
kernel-rt	RHEL 8	0:4.18.0-240.15.1.rt7.69.el8_3
kernel-rt-core	RHEL 8	0:4.18.0-240.15.1.rt7.69.el8_3
kernel-rt-debug	RHEL 8	0:4.18.0-240.15.1.rt7.69.el8_3
kernel-rt-debug-core	RHEL 8	0:4.18.0-240.15.1.rt7.69.el8_3
kernel-rt-debug-devel	RHEL 8	0:4.18.0-240.15.1.rt7.69.el8_3
kernel-rt-debug-kvm	RHEL 8	0:4.18.0-240.15.1.rt7.69.el8_3
kernel-rt-debug-modules	RHEL 8	0:4.18.0-240.15.1.rt7.69.el8_3
kernel-rt-debug-modules-extra	RHEL 8	0:4.18.0-240.15.1.rt7.69.el8_3
kernel-rt-devel	RHEL 8	0:4.18.0-240.15.1.rt7.69.el8_3
kernel-rt-kvm	RHEL 8	0:4.18.0-240.15.1.rt7.69.el8_3
kernel-rt-modules	RHEL 8	0:4.18.0-240.15.1.rt7.69.el8_3
kernel-rt-modules-extra	RHEL 8	0:4.18.0-240.15.1.rt7.69.el8_3

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2020-25705	bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: l...	7.4	0.0669	None reported
High	CVE-2020-29661	bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: l...	7.8	0.0112	None reported
High	CVE-2020-14351	kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: l...	7.8	0.0031	None reported

Also fixes CVE-2020-25705

ELSA-2021-9007
kernel-uek-container, kernel-uek-container-debug on ol 8
ELSA-2021-0558
bpftool, kernel, kernel-abi-whitelists and 17 more on ol 8
RHSA-2021:0558
bpftool, kernel, kernel-abi-whitelists and 20 more on RHEL 8
ELSA-2021-9006
kernel-uek, kernel-uek-debug, kernel-uek-debug-devel and 6 more on ol 8

Vendor advisory

https://access.redhat.com/errata/RHSA-2021:0537

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