CVE-2023-7192 (GCVE-0-2023-7192)
Vulnerability from cvelistv5
Published
2024-01-02 19:02
Modified
2025-10-10 00:00
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Summary
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.
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| ► | Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support |
Unaffected: 0:4.18.0-193.133.1.el8_2 < * cpe:/o:redhat:rhel_tus:8.2::baseos cpe:/o:redhat:rhel_e4s:8.2::baseos cpe:/o:redhat:rhel_aus:8.2::baseos |
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(i.e., nf_conntrack_netlink) onto the system until we have a fix available. This can be done by a blacklist mechanism which will ensure the driver is not loaded at boot time.\\n~~~\\nHow do I blacklist a kernel module to prevent it from loading automatically?\\nhttps://access.redhat.com/solutions/41278 \\n~~~\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-401\", \"description\": \"Missing Release of Memory after Effective Lifetime\"}]}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2025-11-20T18:07:32.157Z\"}, \"x_redhatCweChain\": \"CWE-401: Missing Release of Memory after Effective Lifetime\"}}",
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"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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