FKIE_CVE-2011-1771
Vulnerability from fkie_nvd - Published: 2011-09-06 16:55 - Updated: 2026-06-16 23:29
Severity
Summary
The cifs_close function in fs/cifs/file.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (NULL pointer dereference and BUG) or possibly have unspecified other impact by setting the O_DIRECT flag during an attempt to open a file on a CIFS filesystem.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * |
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "secalert@redhat.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "176353CE-F17E-4776-AD9F-19014DA75B76",
"versionEndExcluding": "2.6.39",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The cifs_close function in fs/cifs/file.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (NULL pointer dereference and BUG) or possibly have unspecified other impact by setting the O_DIRECT flag during an attempt to open a file on a CIFS filesystem."
},
{
"lang": "es",
"value": "La funci\u00f3n cifs_close en fs/cifs/file.c en el kernel de Linux antes de su versi\u00f3n v2.6.39 permite a usuarios locales provocar una denegaci\u00f3n de servicio (puntero a NULL y Error) o posiblemente tener un impacto no especificado estableciendo el flag O_DIRECT durante un intento de abrir un archivo en un sistema de archivos CIFS."
}
],
"id": "CVE-2011-1771",
"lastModified": "2026-06-16T23:29:59.817",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.4,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.4,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2011-09-06T16:55:07.320",
"references": [
{
"source": "secalert@redhat.com",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7797069305d13252fd66cf722aa8f2cbeb3c95cd"
},
{
"source": "secalert@redhat.com",
"tags": [
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],
"url": "http://marc.info/?l=linux-cifs\u0026m=130204357001849\u0026w=2"
},
{
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"tags": [
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},
{
"source": "secalert@redhat.com",
"tags": [
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],
"url": "http://securityreason.com/securityalert/8367"
},
{
"source": "secalert@redhat.com",
"tags": [
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],
"url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39"
},
{
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"tags": [
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"url": "http://www.openwall.com/lists/oss-security/2011/05/09/2"
},
{
"source": "secalert@redhat.com",
"tags": [
"Exploit",
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=703016"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7797069305d13252fd66cf722aa8f2cbeb3c95cd"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"url": "http://marc.info/?l=linux-cifs\u0026m=130204357001849\u0026w=2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
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"url": "http://marc.info/?l=linux-cifs\u0026m=130204730006155\u0026w=2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "http://securityreason.com/securityalert/8367"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"Vendor Advisory"
],
"url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Mailing List",
"Patch",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2011/05/09/2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=703016"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"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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