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CVE-2023-4147

Kernel: netfilter: nf_tables_newrule when adding a rule with nfta_rule_chain_id leads to use-after-free

CVSS 7.8 HIGHEPSS 0.6%CWE-416
A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the system.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat Enterprise Linux 9.0 Extended Update Support

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References
https://access.redhat.com/errata/RHSA-2023:5069https://access.redhat.com/errata/RHSA-2023:5091https://access.redhat.com/errata/RHSA-2023:5093https://access.redhat.com/errata/RHSA-2023:7382https://access.redhat.com/errata/RHSA-2023:7389https://access.redhat.com/errata/RHSA-2023:7411https://access.redhat.com/security/cve/CVE-2023-4147https://bugzilla.redhat.com/show_bug.cgi?id=2225239https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0ebc1064e4874d5987722a2ddbc18f94aa53b211https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlhttps://security.netapp.com/advisory/ntap-20231020-0006/https://www.debian.org/security/2023/dsa-5480