RHSA-2023:4541: Security update for 12 packages

RHSA-2023:4541, released August 8, 2023, fixes 6 CVEs across 12 products. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

8.8

Base score, 0 to 10

Highest EPSS

0.0246

84th percentile

Priority of the 6 CVEs

Patch now 0
                                Urgent 0
                                High 6
                                Routine 0

Fixed package versions

Product	Release	Fixed in
kernel-rt	RHEL 8	0:4.18.0-477.21.1.rt7.284.el8_8
kernel-rt-core	RHEL 8	0:4.18.0-477.21.1.rt7.284.el8_8
kernel-rt-debug	RHEL 8	0:4.18.0-477.21.1.rt7.284.el8_8
kernel-rt-debug-core	RHEL 8	0:4.18.0-477.21.1.rt7.284.el8_8
kernel-rt-debug-devel	RHEL 8	0:4.18.0-477.21.1.rt7.284.el8_8
kernel-rt-debug-kvm	RHEL 8	0:4.18.0-477.21.1.rt7.284.el8_8
kernel-rt-debug-modules	RHEL 8	0:4.18.0-477.21.1.rt7.284.el8_8
kernel-rt-debug-modules-extra	RHEL 8	0:4.18.0-477.21.1.rt7.284.el8_8
kernel-rt-devel	RHEL 8	0:4.18.0-477.21.1.rt7.284.el8_8
kernel-rt-kvm	RHEL 8	0:4.18.0-477.21.1.rt7.284.el8_8
kernel-rt-modules	RHEL 8	0:4.18.0-477.21.1.rt7.284.el8_8
kernel-rt-modules-extra	RHEL 8	0:4.18.0-477.21.1.rt7.284.el8_8

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2022-42896	bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: u...	8.8	0.0246	None reported
High	CVE-2023-1829	linux: A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited to achieve...	8.1	0.0106	None reported
High	CVE-2023-2124	bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: u...	8.1	0.0049	None reported
High	CVE-2023-1281	linux: Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation. The...	8.1	0.0030	None reported
High	CVE-2023-2235	linux: A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privil...	8.1	0.0025	None reported
High	CVE-2023-2194	kernel-debug-modules: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: u...	8.1	0.0024	None reported

Also fixes CVE-2022-42896

RHSA-2023:2458
bpftool, kernel, kernel-64k and 43 more on RHEL 9
RHSA-2023:2148
kernel-rt, kernel-rt-core, kernel-rt-debug and 11 more on RHEL 9
ELSA-2023-2458
bpftool, kernel, kernel-abi-stablelists and 24 more on ol 9
ALSA-2023:2148
kernel-rt, kernel-rt-core, kernel-rt-debug and 11 more on almalinux 9
ALSA-2023:2458
bpftool, kernel, kernel-64k and 44 more on almalinux 9
RLSA-2023:4541
kernel-rt on rocky 8
RLSA-2023:4517
kernel on rocky 8
ELSA-2023-4517
bpftool, kernel, kernel-abi-stablelists and 17 more on ol 8

Vendor advisory

https://access.redhat.com/errata/RHSA-2023:4541

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