FKIE_CVE-2009-1242
Vulnerability from fkie_nvd - Published: 2009-04-06 14:30 - Updated: 2026-06-16 23:06
Severity
Summary
The vmx_set_msr function in arch/x86/kvm/vmx.c in the VMX implementation in the KVM subsystem in the Linux kernel before 2.6.29.1 on the i386 platform allows guest OS users to cause a denial of service (OOPS) by setting the EFER_LME (aka "Long mode enable") bit in the Extended Feature Enable Register (EFER) model-specific register, which is specific to the x86_64 platform.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| opensuse | opensuse | 11.0 | |
| opensuse | opensuse | 11.1 | |
| debian | debian_linux | 4.0 | |
| debian | debian_linux | 5.0 | |
| canonical | ubuntu_linux | 6.06 | |
| canonical | ubuntu_linux | 8.04 | |
| canonical | ubuntu_linux | 8.10 | |
| canonical | ubuntu_linux | 9.04 | |
| fedoraproject | fedora | 10 |
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The vmx_set_msr function in arch/x86/kvm/vmx.c in the VMX implementation in the KVM subsystem in the Linux kernel before 2.6.29.1 on the i386 platform allows guest OS users to cause a denial of service (OOPS) by setting the EFER_LME (aka \"Long mode enable\") bit in the Extended Feature Enable Register (EFER) model-specific register, which is specific to the x86_64 platform."
},
{
"lang": "es",
"value": "La funci\u00f3n vmx_set_msr en arch/x86/kvm/vmx.c en la implementaci\u00f3n VMX en el subsistema KVM en el kernel de Linux anteriores a v2.6.29.1 en la plataforma i386 permite a los usuarios invitados del SO causar una denegaci\u00f3n de servicio (OOPS) estableciendo el bit EFER_LME (tambi\u00e9n conocido como \"modo largo habilitado\") en la Extended Feature Enable Register (EFER) registro espec\u00edfico de modelo, lo que es espec\u00edfico para la plataforma x86_64."
}
],
"id": "CVE-2009-1242",
"lastModified": "2026-06-16T23:06:50.553",
"metrics": {
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{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 4.9,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 6.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
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},
"published": "2009-04-06T14:30:00.390",
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"vendorComments": [
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"comment": "Not vulnerable. This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 2.1, 3, 4, 5 or Red Hat Enterprise MRG.",
"lastModified": "2009-04-07T00:00:00",
"organization": "Red Hat"
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"value": "CWE-20"
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],
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}
]
}
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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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