FKIE_CVE-2016-8630
Vulnerability from fkie_nvd - Published: 2016-11-28 03:59 - Updated: 2026-06-17 00:54
Severity
Summary
The x86_decode_insn function in arch/x86/kvm/emulate.c in the Linux kernel before 4.8.7, when KVM is enabled, allows local users to cause a denial of service (host OS crash) via a certain use of a ModR/M byte in an undefined instruction.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * |
{
"affected": [
{
"affectedData": [
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"product": "n/a",
"vendor": "n/a",
"versions": [
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"status": "affected",
"version": "n/a"
}
]
}
],
"source": "secalert@redhat.com"
}
],
"configurations": [
{
"nodes": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "2DB1181C-8236-47EF-AB6F-1042AFCE5F54",
"versionEndIncluding": "4.8.6",
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"cveTags": [],
"descriptions": [
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"lang": "en",
"value": "The x86_decode_insn function in arch/x86/kvm/emulate.c in the Linux kernel before 4.8.7, when KVM is enabled, allows local users to cause a denial of service (host OS crash) via a certain use of a ModR/M byte in an undefined instruction."
},
{
"lang": "es",
"value": "La funci\u00f3n x86_decode_insn en arch/x86/kvm/emulate.c en el kernel Linux en versiones anteriores a 4.8.7, cuando KVM est\u00e1 habilitado, permite a usuarios locales provocar una denegaci\u00f3n de servicio (ca\u00edda de SO anfitri\u00f3n ) a trav\u00e9s de cierto uso del byte ModR/M en una instrucci\u00f3n no definida."
}
],
"id": "CVE-2016-8630",
"lastModified": "2026-06-17T00:54:38.680",
"metrics": {
"cvssMetricV2": [
{
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"baseSeverity": "MEDIUM",
"cvssData": {
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"accessVector": "LOCAL",
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"availabilityImpact": "COMPLETE",
"baseScore": 4.9,
"confidentialityImpact": "NONE",
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"vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
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"exploitabilityScore": 3.9,
"impactScore": 6.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
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"cvssMetricV30": [
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"published": "2016-11-28T03:59:03.670",
"references": [
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"tags": [
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"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d9092f52d7e61dd1557f2db2400ddb430e85937e"
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{
"source": "secalert@redhat.com",
"url": "http://rhn.redhat.com/errata/RHSA-2017-0386.html"
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"url": "http://rhn.redhat.com/errata/RHSA-2017-0387.html"
},
{
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"tags": [
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"url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.7"
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{
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"url": "http://www.securityfocus.com/bid/94459"
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},
{
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"url": "http://rhn.redhat.com/errata/RHSA-2017-0386.html"
},
{
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"url": "http://rhn.redhat.com/errata/RHSA-2017-0387.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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},
{
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"tags": [
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{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/94459"
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{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1393350"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"Third Party Advisory"
],
"url": "https://github.com/torvalds/linux/commit/d9092f52d7e61dd1557f2db2400ddb430e85937e"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-284"
},
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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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