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Status published
Medium
CVE-2023-7192
Kernel: refcount leak in ctnetlink_create_conntrack()
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://access.redhat.com/errata/RHSA-2024:0723
- https://access.redhat.com/errata/RHSA-2024:0725
- https://access.redhat.com/errata/RHSA-2024:1188
- https://access.redhat.com/errata/RHSA-2024:1250
- https://access.redhat.com/errata/RHSA-2024:1306
- https://access.redhat.com/errata/RHSA-2024:1367
- https://access.redhat.com/errata/RHSA-2024:1382
- https://access.redhat.com/errata/RHSA-2024:1404
- https://access.redhat.com/errata/RHSA-2024:2006
- https://access.redhat.com/errata/RHSA-2024:2008
- https://access.redhat.com/security/cve/CVE-2023-7192
- https://bugzilla.redhat.com/show_bug.cgi?id=2256279
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=ac4893980bbe79ce383daf9a0885666a30fe4c83
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Affected Vendor
Red Hat
View all reports →Affected Software
Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 8.6 Extended Update Support, Red Hat Enterprise Linux 8.8 Extended Update Support, Red Hat Enterprise Linux 9.0 Extended Update Support, Red Hat Enterprise Linux 9.2 Extended Update Support, Red Hat Virtualization 4 for Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9
Vulnerable Versions:
0:4.18.0-193.133.1.el8_2, 0:4.18.0-193.133.1.rt13.184.el8_2, 0:4.18.0-305.125.1.el8_4, 0:4.18.0-305.125.1.rt7.201.el8_4, 0:4.18.0-372.95.1.el8_6, 0:4.18.0-477.51.1.el8_8, 0:5.14.0-70.93.2.el9_0, 0:5.14.0-70.93.1.rt21.165.el9_0, 0:5.14.0-284.52.1.el9_2, 0:5.14.0-284.52.1.rt14.337.el9_2
Timeline
Official Publish:
January 2nd, 2024
Last Modified:
November 20th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H