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CVE-2023-7192

Kernel: refcount leak in ctnetlink_create_conntrack()

Published: 1/2/2024 Last updated: 11/20/2025 Reserved: 12/30/2023

A memory leak problem was found in ctnetlink_create_conntrack in net/netfilter/nf_conntrack_netlink.c in the Linux Kernel. This issue may allow a local attacker with CAP_NET_ADMIN privileges to cause a denial of service (DoS) attack due to a refcount overflow.

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

Metrics

Version Score Severity Vector String
3.1 5.5 Medium CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 (44)

Product Vendor Version
Red Hat Enterprise Linux 8.6 Extended Update Support Red Hat <= 5.10.*
Red Hat Enterprise Linux 8.8 Extended Update Support Red Hat 1.13.2
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat n/a
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat < 6.2.9200.24314
Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat n/a
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions Red Hat < 10.0.19042.1645
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 Red Hat < 3.8.3
Red Hat Enterprise Linux 6 Red Hat 1.11.0
Red Hat Enterprise Linux 7 Red Hat n/a
Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat 1.0
Red Hat Enterprise Linux 8 Red Hat 1.10.2
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat < 5509d07a9364b75b28055bf2d89289e4e5269929
Red Hat Enterprise Linux 9 Red Hat <= 6.6.*
Red Hat Enterprise Linux 8.2 Advanced Update Support Red Hat < 6.2.9200.24314
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 Red Hat < 10.0.19042.1645
Red Hat Enterprise Linux 6 Red Hat < 6.3.9600.21013
Red Hat Enterprise Linux 7 Red Hat 5.7
Red Hat Enterprise Linux 8.2 Telecommunications Update Service Red Hat 4.03
Red Hat Enterprise Linux 8 Red Hat < 6.3.9600.20246
Red Hat Enterprise Linux 8.4 Telecommunications Update Service Red Hat < 6.2.9200.23584
Red Hat Enterprise Linux 9 Red Hat <= 5.10.*
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Red Hat n/a
Red Hat Enterprise Linux 8.2 Advanced Update Support Red Hat 1.12.7
Red Hat Enterprise Linux 8.6 Extended Update Support Red Hat < d1fbbb5ded714b6610a16ec3d7e271a55291ccc4
Red Hat Enterprise Linux 8.2 Telecommunications Update Service Red Hat 5.10
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions Red Hat <= 4.1.7
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat 1.13.0
Red Hat Enterprise Linux 8.8 Extended Update Support Red Hat <= 2.9.14
Red Hat Enterprise Linux 8.4 Telecommunications Update Service Red Hat < 5.10
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Red Hat 1.13.1
Red Hat Enterprise Linux 9 Red Hat 1.10.1
Red Hat Enterprise Linux 8.2 Telecommunications Update Service Red Hat < f370fbbd3151c1c87d1e976c8964cb6cc46f2e00
Red Hat Enterprise Linux 8.4 Telecommunications Update Service Red Hat 4.04
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat < d18529a4c12f66d83daac78045ea54063bd43257
Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat < 6.3.9600.20246
Red Hat Enterprise Linux 7 Red Hat < 5.7
Red Hat Enterprise Linux 8 Red Hat < 10.0.22000.613
Red Hat Enterprise Linux 9 Red Hat < 6.3.9600.21013
Red Hat Enterprise Linux 8.2 Telecommunications Update Service Red Hat 1.12.4
Red Hat Enterprise Linux 8.4 Telecommunications Update Service Red Hat n/a
Red Hat Enterprise Linux 9.0 Extended Update Support Red Hat prior to 3.4.0.0
Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat <= 5.15.*
Red Hat Enterprise Linux 7 Red Hat <= 6.1.*
Red Hat Enterprise Linux 8 Red Hat n/a

References (52)