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CVE-2023-4004

Kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove()

Published: 7/31/2023 Last updated: 11/8/2025 Reserved: 7/30/2023

A use-after-free flaw was found in the Linux kernel's netfilter in the way a user triggers the nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local user to crash the system or potentially 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 (29)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes ortools_solvers orun rawlink rawlink-eio rawlink-lwt restricted 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 (15)

Product Vendor Version
Red Hat Enterprise Linux 8.6 Extended Update Support Red Hat <= 5.10.*
Red Hat Enterprise Linux 8.4 Telecommunications Update Service Red Hat 5.0
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Red Hat < 5.0
Red Hat Enterprise Linux 9 Red Hat <= 5.12.*
Red Hat Enterprise Linux 8.2 Telecommunications Update Service Red Hat < 0f0c5ea09139777d90729d408b807021f2ea6492
Red Hat Enterprise Linux 8.2 Advanced Update Support Red Hat < b11220803ad14a2a880cc06d8e01fe2548cc85b0
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat < 7c8f176d6a3fa18aa0f8875da6f7c672ed2a8554
Red Hat Enterprise Linux 9 Red Hat <= 5.13.*
Red Hat Enterprise Linux 8.2 Telecommunications Update Service Red Hat < 43d1aaa1965f9b58035196dac49b1e1e6c9c25eb
Red Hat Enterprise Linux 8 Red Hat <= <= 1.8.1
Red Hat Enterprise Linux 8 Red Hat <= 0.13.2
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions Red Hat < 5f9741a9a91f25c89e04b408cd61e3ab050ce24b
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Red Hat <= 5.4.*
Red Hat Enterprise Linux 9 Red Hat <= *
Red Hat Enterprise Linux 8 Red Hat n/a

References (92)