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{
"id": "CVE-2011-5321",
"sourceIdentifier": "secalert@redhat.com",
"published": "2016-05-02T10:59:02.373",
"lastModified": "2018-01-05T02:29:16.303",
"vulnStatus": "Modified",
"evaluatorComment": "<a href=\"http://cwe.mitre.org/data/definitions/476.html\">CWE-476: NULL Pointer Dereference</a>",
"descriptions": [
{
"lang": "en",
"value": "The tty_open function in drivers/tty/tty_io.c in the Linux kernel before 3.1.1 mishandles a driver-lookup failure, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via crafted access to a device file under the /dev/pts directory."
},
{
"lang": "es",
"value": "La funci\u00f3n tty_open en drivers/tty/tty_io.c en el kernel de Linux en versiones anteriores a 3.1.1 no maneja adecuadamente un fallo de b\u00fasqueda de controlador, lo que permite a usuarios locales provocar una denegaci\u00f3n de servicio (referencia a puntero NULL y ca\u00edda de sistema) o posiblemente tener otro impacto no especificado a trav\u00e9s de acceso manipulado a un archivo de dispositivo bajo el directorio /dev/pts."
}
],
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"source": "nvd@nist.gov",
"type": "Primary",
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"version": "3.0",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
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"accessVector": "LOCAL",
"accessComplexity": "LOW",
"authentication": "NONE",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 4.9
},
"baseSeverity": "MEDIUM",
"exploitabilityScore": 3.9,
"impactScore": 6.9,
"acInsufInfo": false,
"obtainAllPrivilege": false,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
]
},
"weaknesses": [
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}
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"references": [
{
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c290f8358acaeffd8e0c551ddcc24d1206143376",
"source": "secalert@redhat.com",
"tags": [
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{
"url": "http://rhn.redhat.com/errata/RHSA-2015-1221.html",
"source": "secalert@redhat.com"
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{
"url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.1",
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{
"url": "http://www.openwall.com/lists/oss-security/2015/03/13/17",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1201887",
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