Linux · Security advisory · September 15, 2021

RHSA-2021:3548: Security update for 24 packages

RHSA-2021:3548, released September 15, 2021, fixes 1 CVE across 24 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

0.0045

39th percentile

Fixed package versions

Product	Release	Fixed in
bpftool	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-abi-stablelists	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-core	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-cross-headers	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-debug	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-debug-core	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-debug-devel	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-debug-modules	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-debug-modules-extra	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-devel	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-doc	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-modules	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-modules-extra	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-tools	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-tools-libs	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-tools-libs-devel	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-zfcpdump	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-zfcpdump-core	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-zfcpdump-devel	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-zfcpdump-modules	RHEL 8	0:4.18.0-305.19.1.el8_4
kernel-zfcpdump-modules-extra	RHEL 8	0:4.18.0-305.19.1.el8_4
perf	RHEL 8	0:4.18.0-305.19.1.el8_4
python3-perf	RHEL 8	0:4.18.0-305.19.1.el8_4

CVEs this fix closes

Priority	CVE	Title	Impact	CVSS	EPSS	Exploitation
High	CVE-2021-3653	kernel-rt-debug-modules: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high...		8.8	0.0045	None reported

Also fixes CVE-2021-3653

ELSA-2021-9564
kernel-uek, kernel-uek-debug, kernel-uek-debug-devel and 6 more on ol 8
ELSA-2021-9565
kernel-uek-container, kernel-uek-container-debug on ol 8
ELSA-2021-3548
bpftool, kernel, kernel-abi-stablelists and 16 more on ol 8
RHSA-2021:3547
kernel-rt, kernel-rt-core, kernel-rt-debug and 9 more on RHEL 8

Vendor advisory

https://access.redhat.com/errata/RHSA-2021:3548

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