CVE-2018-12232 (GCVE-0-2018-12232)
Vulnerability from cvelistv5 – Published: 2018-06-12 12:00 – Updated: 2024-08-05 08:30
VLAI
EPSS
VEX
Summary
In net/socket.c in the Linux kernel through 4.17.1, there is a race condition between fchownat and close in cases where they target the same socket file descriptor, related to the sock_close and sockfs_setattr functions. fchownat does not increment the file descriptor reference count, which allows close to set the socket to NULL during fchownat's execution, leading to a NULL pointer dereference and system crash.
Severity
5.9 (Medium)
CWE
- n/a
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://usn.ubuntu.com/3752-2/ | vendor-advisoryx_refsource_UBUNTU |
| https://usn.ubuntu.com/3752-3/ | vendor-advisoryx_refsource_UBUNTU |
| http://git.kernel.org/cgit/linux/kernel/git/torva… | x_refsource_MISC |
| https://patchwork.ozlabs.org/patch/926519/ | x_refsource_MISC |
| https://access.redhat.com/errata/RHSA-2018:2948 | vendor-advisoryx_refsource_REDHAT |
| https://lkml.org/lkml/2018/6/5/14 | x_refsource_MISC |
| http://www.securityfocus.com/bid/104453 | vdb-entryx_refsource_BID |
| https://usn.ubuntu.com/3752-1/ | vendor-advisoryx_refsource_UBUNTU |
| https://github.com/torvalds/linux/commit/6d8c50dc… | x_refsource_MISC |
Date Public
2018-06-12 00:00
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"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-28T11:12:23+00:00",
"cve": "CVE-2018-12232",
"id": "CVE-2018-12232",
"initial_release_date": "2018-06-04T00:00:00+00:00",
"product_status:fixed": "26",
"product_status:known_not_affected": "87",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: NULL pointer dereference if close and fchownat system calls share a socket file descriptor",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-12232.json",
"version": "3"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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