CVE-2023-7192
Kernel: refcount leak in ctnetlink_create_conntrack()
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-401 |
| Vendor | red hat |
| Product | red hat enterprise linux 8.2 advanced update support |
| Published | Jan 2, 2024 |
| Last Updated | Nov 20, 2025 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 8.2 Advanced Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8.2 Telecommunications Update Service
All versions affected Red Hat / Red Hat Enterprise Linux 8.2 Telecommunications Update Service
All versions affected Red Hat / Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8.4 Telecommunications Update Service
All versions affected Red Hat / Red Hat Enterprise Linux 8.4 Telecommunications Update Service
All versions affected Red Hat / Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8.8 Extended Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 9.0 Extended Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 9.0 Extended Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 9.2 Extended Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 9.2 Extended Update Support
All versions affected Red Hat / Red Hat Virtualization 4 for Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2024:0723 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:0725 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:1188 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:1250 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:1306 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:1367 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:1382 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:1404 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:2006 access.redhat.com: https://access.redhat.com/errata/RHSA-2024:2008 access.redhat.com: https://access.redhat.com/security/cve/CVE-2023-7192 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2256279 git.kernel.org: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=ac4893980bbe79ce383daf9a0885666a30fe4c83