fkie_cve-2013-2171
Vulnerability from fkie_nvd
Published
2013-07-02 03:43
Modified
2025-04-11 00:51
Severity ?
Summary
The vm_map_lookup function in sys/vm/vm_map.c in the mmap implementation in the kernel in FreeBSD 9.0 through 9.1-RELEASE-p4 does not properly determine whether a task should have write access to a memory location, which allows local users to bypass filesystem write permissions and consequently gain privileges via a crafted application that leverages read permissions, and makes mmap and ptrace system calls.
References
Impacted products
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:freebsd:freebsd:9.0:*:*:*:*:*:*:*",
"matchCriteriaId": "E6BD5BFF-260A-4A9E-B0AA-C8B8386B154E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:9.1:*:*:*:*:*:*:*",
"matchCriteriaId": "D78E559A-430D-4D50-8A83-58A37D393471",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:9.1:p4:*:*:*:*:*:*",
"matchCriteriaId": "DD6B2A2E-6E8C-40D7-B29F-1FC9E8B1076B",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The vm_map_lookup function in sys/vm/vm_map.c in the mmap implementation in the kernel in FreeBSD 9.0 through 9.1-RELEASE-p4 does not properly determine whether a task should have write access to a memory location, which allows local users to bypass filesystem write permissions and consequently gain privileges via a crafted application that leverages read permissions, and makes mmap and ptrace system calls."
},
{
"lang": "es",
"value": "La funci\u00f3n vm_map_lookup en sys/vm/vm_map.c \r\nen la ejecuci\u00f3n de \"mmap\" en el kernel en FreeBSD v9.0 hasta v9.1-RELEASE-p4 no determina correctamente si una tarea debe tener acceso de escritura a una posici\u00f3n de memoria, que permite a los usuarios locales saltarse permisos de escritura del sistema de archivos y por lo tanto obtener privilegios a trav\u00e9s de una aplicaci\u00f3n manipulada que aprovecha permisos de lectura, y que hace llamadas al sistema \"mmap\" y \"ptrace\"."
}
],
"id": "CVE-2013-2171",
"lastModified": "2025-04-11T00:51:21.963",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 6.9,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.4,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2013-07-02T03:43:33.647",
"references": [
{
"source": "secalert@redhat.com",
"url": "http://svnweb.freebsd.org/base?view=revision\u0026revision=251901"
},
{
"source": "secalert@redhat.com",
"url": "http://www.debian.org/security/2013/dsa-2714"
},
{
"source": "secalert@redhat.com",
"tags": [
"Vendor Advisory"
],
"url": "http://www.freebsd.org/security/advisories/FreeBSD-SA-13:06.mmap.asc"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://svnweb.freebsd.org/base?view=revision\u0026revision=251901"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.debian.org/security/2013/dsa-2714"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://www.freebsd.org/security/advisories/FreeBSD-SA-13:06.mmap.asc"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-264"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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