CVE-2014-4014
La implementación de capacidades en el kernel de Linux anterior a 3.14.8 no considera debidamente que los espacios de nombres no sean aplicables a inodos, lo que permite a usuarios locales evadir restricciones chmod mediante la creación anterior de un espacio de nombre de usuario, tal y como fue demostrado mediante la configuración del bit setgid en un fichero con propiedad de grupo del root.
CVSS
- Puntuación base
- 6.2
- Versión
- 2.0
- Vector
- AV:L/AC:H/Au:N/C:C/I:C/A:C
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días
- 3.30 %
- Percentil entre todas las CVEs puntuadas
- 88
- Fecha de la puntuación
- 20/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Exploits públicos
Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.
- Publicado en Exploit-DB · Linux Kernel 3.13 - SGID Privilege Escalation (21/6/2014)
- Prueba de concepto en GitHub (no verificada) · Lista de pruebas de concepto en GitHub
⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.
Tecnologías afectadas (1)
CWE
- CWE-264
Referencias
Mostrar las 20 referencias
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=23adbe12ef7d3d4195e80800ab36b37bee28cd03
- http://secunia.com/advisories/59220
- http://www.exploit-db.com/exploits/33824
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8
- http://www.openwall.com/lists/oss-security/2014/06/10/4
- http://www.securityfocus.com/bid/67988
- http://www.securitytracker.com/id/1030394
- https://bugzilla.redhat.com/show_bug.cgi?id=1107966
- https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03
- https://source.android.com/security/bulletin/2016-12-01.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=23adbe12ef7d3d4195e80800ab36b37bee28cd03
- http://secunia.com/advisories/59220
- http://www.exploit-db.com/exploits/33824
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.14.8
- http://www.openwall.com/lists/oss-security/2014/06/10/4
- http://www.securityfocus.com/bid/67988
- http://www.securitytracker.com/id/1030394
- https://bugzilla.redhat.com/show_bug.cgi?id=1107966
- https://github.com/torvalds/linux/commit/23adbe12ef7d3d4195e80800ab36b37bee28cd03
- https://source.android.com/security/bulletin/2016-12-01.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2014-4014",
"cveTags": [],
"metrics": {
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{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 6.2,
"accessVector": "LOCAL",
"vectorString": "AV:L/AC:H/Au:N/C:C/I:C/A:C",
"authentication": "NONE",
"integrityImpact": "COMPLETE",
"accessComplexity": "HIGH",
"availabilityImpact": "COMPLETE",
"confidentialityImpact": "COMPLETE"
},
"acInsufInfo": false,
"impactScore": 10,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
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}
]
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"affected": [
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],
"published": "2014-06-23T11:21:17.793",
"references": [
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],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-264"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The capabilities implementation in the Linux kernel before 3.14.8 does not properly consider that namespaces are inapplicable to inodes, which allows local users to bypass intended chmod restrictions by first creating a user namespace, as demonstrated by setting the setgid bit on a file with group ownership of root."
},
{
"lang": "es",
"value": "La implementación de capacidades en el kernel de Linux anterior a 3.14.8 no considera debidamente que los espacios de nombres no sean aplicables a inodos, lo que permite a usuarios locales evadir restricciones chmod mediante la creación anterior de un espacio de nombre de usuario, tal y como fue demostrado mediante la configuración del bit setgid en un fichero con propiedad de grupo del root."
}
],
"lastModified": "2026-06-17T00:09:17.823",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"matchCriteriaId": "07C0B41C-8466-4CBF-B996-6CCD9B07FEFD",
"versionEndExcluding": "3.14.8"
}
],
"operator": "OR"
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]
}
],
"sourceIdentifier": "cve@mitre.org"
}