CVE-2018-1091 (GCVE-0-2018-1091)
Vulnerability from cvelistv5 – Published: 2018-03-27 21:00 – Updated: 2024-08-05 03:51
VLAI
EPSS
VEX
Summary
In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c in the Linux kernel before 4.13.5, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path, leading to a denial of service.
Severity
5.5 (Medium)
CWE
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1558149 | x_refsource_CONFIRM |
| https://www.kernel.org/pub/linux/kernel/v4.x/Chan… | x_refsource_CONFIRM |
| https://marc.info/?l=linuxppc-embedded&m=15053553… | x_refsource_CONFIRM |
| https://access.redhat.com/security/cve/cve-2018-1091 | x_refsource_CONFIRM |
| https://access.redhat.com/errata/RHSA-2018:1318 | vendor-advisoryx_refsource_REDHAT |
| http://git.kernel.org/cgit/linux/kernel/git/torva… | x_refsource_CONFIRM |
| https://github.com/torvalds/linux/commit/c1fa0768… | x_refsource_CONFIRM |
| http://openwall.com/lists/oss-security/2018/03/27/4 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| n/a | Linux kernel v4.13 and newer |
Affected:
Linux kernel v4.13 and newer
|
Date Public
2018-03-27 00:00
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"Patch",
"Third Party Advisory"
],
"url": "https://github.com/torvalds/linux/commit/c1fa0768a8713b135848f78fd43ffc208d8ded70"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://marc.info/?l=linuxppc-embedded\u0026m=150535531910494\u0026w=2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-391"
}
],
"source": "secalert@redhat.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-119"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-28T06:31:55+00:00",
"cve": "CVE-2018-1091",
"id": "CVE-2018-1091",
"initial_release_date": "2018-01-01T00:00:00+00:00",
"product_status:fixed": "202",
"product_status:known_not_affected": "86",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: guest kernel crash during core dump on POWER9 host",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-1091.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "low",
"current_release_date": "2026-08-31T08:54:05Z",
"cve": "CVE-2018-1091",
"id": "CVE-2018-1091",
"initial_release_date": "2023-02-15T04:34:32Z",
"product_status:known_not_affected": "440",
"product_status:recommended": "433",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2018-1091",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2018-1091.json",
"version": "20"
}
}
}
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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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