« List of all CVEs

CVE-2023-4147

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

Published: 8/7/2023 Last updated: 11/20/2025 Reserved: 8/3/2023

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.

CNA assigner: redhat (53f830b8-0a3f-465b-8143-3b8a9948e749) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 7.8 High CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Opam packages affected (27)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes orun rawlink rawlink-eio rawlink-lwt shell solo5 solo5-bindings-hvt solo5-bindings-spt solo5-cross-aarch64 solo5-kernel-ukvm tracy-client tuntap uring vhd-format vhd-format-lwt xapi-stdext-unix

Products affected (21)

Product Vendor Version
Red Hat Enterprise Linux 8 Red Hat version 1803 (Core Installation)
Red Hat Enterprise Linux 9 Red Hat < 6.1.7601.26623
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat SA6155P
Red Hat Enterprise Linux 6 Red Hat < 6.1.7601.26623
Red Hat Enterprise Linux 7 Red Hat SA8150P
Red Hat Enterprise Linux 8 Red Hat SA8155
Red Hat Enterprise Linux 9 Red Hat 10 Version 1809 for 32-bit Systems
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat 7.2.0
Red Hat Enterprise Linux 6 Red Hat 10 for x64-based Systems
Red Hat Enterprise Linux 7 Red Hat < 10.0.17763.2803
Red Hat Enterprise Linux 9 Red Hat <= 2.2.6
Red Hat Enterprise Linux 9 Red Hat <= 8.8.11
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat 10 for 32-bit Systems
Red Hat Enterprise Linux 7 Red Hat Android-11 Android-12
Red Hat Enterprise Linux 9 Red Hat SA6150P
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat <=4.4.0
Red Hat Enterprise Linux 8 Red Hat 20241118
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat <= 3.0.0
Red Hat Enterprise Linux 9 Red Hat SA6155
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat SA8145P
Red Hat Enterprise Linux 9 Red Hat n/a

References (48)