fkie_cve-2016-1886
Vulnerability from fkie_nvd
Published
2016-05-25 15:59
Modified
2025-04-12 10:46
Severity ?
Summary
Integer signedness error in the genkbd_commonioctl function in sys/dev/kbd/kbd.c in FreeBSD 9.3 before p42, 10.1 before p34, 10.2 before p17, and 10.3 before p3 allows local users to obtain sensitive information from kernel memory, cause a denial of service (memory overwrite and kernel crash), or gain privileges via a negative value in the flen structure member in the arg argument in a SETFKEY ioctl call, which triggers a "two way heap and stack overflow."
References
Impacted products
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:freebsd:freebsd:9.3:*:*:*:*:*:*:*",
"matchCriteriaId": "57052F01-8695-4C63-A947-7671375B9312",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:10.1:*:*:*:*:*:*:*",
"matchCriteriaId": "F6D63B21-9D2E-4B15-9E60-6181D44B1F55",
"vulnerable": true
},
{
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"matchCriteriaId": "21EFF723-7B5A-4712-8A6B-56CADAA4BFD5",
"vulnerable": true
},
{
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"matchCriteriaId": "E102E760-362C-4DC7-BDED-E2CF9F94ECE7",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
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}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Integer signedness error in the genkbd_commonioctl function in sys/dev/kbd/kbd.c in FreeBSD 9.3 before p42, 10.1 before p34, 10.2 before p17, and 10.3 before p3 allows local users to obtain sensitive information from kernel memory, cause a denial of service (memory overwrite and kernel crash), or gain privileges via a negative value in the flen structure member in the arg argument in a SETFKEY ioctl call, which triggers a \"two way heap and stack overflow.\""
},
{
"lang": "es",
"value": "Error de entero sin signo en la funci\u00f3n genkbd_commonioctl en sys/dev/kbd/kbd.c en FreeBSD 9.3 en versiones anteriores a p42, 10.1 en versiones anteriores a p34, 10.2 en versiones anteriores a p17 y 10.3 en versiones anteriores a p3 permite a usuarios locales obtener informaci\u00f3n sensible de la memoria del kernel, causar una denegaci\u00f3n de servicio (sobrescribir memoria y ca\u00edda del kernel), u obtener privilegios a trav\u00e9s de un valor negativo en el mimebro de estructura flen en el argumento arg en una llamada SETFKEY ioctl, lo que desencadena un \"desbordamiento de pila y memoria din\u00e1mica en dos sentidos\""
}
],
"id": "CVE-2016-1886",
"lastModified": "2025-04-12T10:46:40.837",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.2,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": [
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2016-05-25T15:59:02.677",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Exploit"
],
"url": "http://cturt.github.io/SETFKEY.html"
},
{
"source": "cve@mitre.org",
"url": "http://www.securityfocus.com/bid/90734"
},
{
"source": "cve@mitre.org",
"url": "http://www.securitytracker.com/id/1035905"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch"
],
"url": "https://security.FreeBSD.org/patches/SA-16:18/atkbd.patch"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "https://www.freebsd.org/security/advisories/FreeBSD-SA-16:18.atkbd.asc"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"url": "http://cturt.github.io/SETFKEY.html"
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{
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"url": "http://www.securityfocus.com/bid/90734"
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"url": "http://www.securitytracker.com/id/1035905"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"url": "https://security.FreeBSD.org/patches/SA-16:18/atkbd.patch"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "https://www.freebsd.org/security/advisories/FreeBSD-SA-16:18.atkbd.asc"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Deferred",
"weaknesses": [
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"description": [
{
"lang": "en",
"value": "CWE-119"
}
],
"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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