Red Hat alert RHSA-2023:7434-01 (kernel)

An update for kernel is now available for Red Hat Enterprise Linux 8.2
Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications
Update Service, and Red Hat Enterprise Linux 8.2 Update Services for SAP
Solutions.

Red Hat Product Security has rated this update as having a security impact of
Important. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating
system.

Security Fix(es):

* kernel: Use-after-free vulnerability in the Linux Kernel traffic control
index filter (CVE-2023-1829)

* kernel: net/sched: cls_u32 component reference counter leak if
tcf_change_indev() fails (CVE-2023-3609)

* kernel: net/sched: cls_fw component can be exploited as result of failure
in tcf_change_indev function (CVE-2023-3776)

* kernel: netfilter: use-after-free due to improper element removal in
nft_pipapo_remove() (CVE-2023-4004)

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):

* kernel-devel RPM cross-compiled by CKI contains host-arch scripts
(BZ#2232140)

* netfilter: RHEL 8.8 phase 2 backports from upstream (BZ#2236819)

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Original: https://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_7434.json