FKIE_CVE-2015-8709
Vulnerability from fkie_nvd - Published: 2016-02-08 03:59 - Updated: 2026-06-17 00:35
Severity
Summary
kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor states "there is no kernel bug here.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * |
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "security@debian.org"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "EDD97C46-E284-47DB-B96A-3B8D5013F2F7",
"versionEndIncluding": "4.4.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [
{
"sourceIdentifier": "security@debian.org",
"tags": [
"disputed"
]
}
],
"descriptions": [
{
"lang": "en",
"value": "kernel/ptrace.c in the Linux kernel through 4.4.1 mishandles uid and gid mappings, which allows local users to gain privileges by establishing a user namespace, waiting for a root process to enter that namespace with an unsafe uid or gid, and then using the ptrace system call. NOTE: the vendor states \"there is no kernel bug here."
},
{
"lang": "es",
"value": "** DISPUTADA ** kernel/ptrace.c en el kernel de Linux hasta la versi\u00f3n 4.4.1 no maneja correctamente el mapeo uid y gid, lo que permite a usuarios locales obtener privilegios estableciendo un espacio de nombres de usuario, a la espera de un proceso root para entrar ese espacio de nombres con un uid o gid inseguro, y despu\u00e9s utilizando la llamada al sistema ptrace. NOTA: el vendedor afirma \"no hay ning\u00fan error en el kernel aqu\u00ed\"."
}
],
"id": "CVE-2015-8709",
"lastModified": "2026-06-17T00:35:04.457",
"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"
}
],
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
"exploitabilityScore": 1.0,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2016-02-08T03:59:05.887",
"references": [
{
"source": "security@debian.org",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html"
},
{
"source": "security@debian.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html"
},
{
"source": "security@debian.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html"
},
{
"source": "security@debian.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html"
},
{
"source": "security@debian.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html"
},
{
"source": "security@debian.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00027.html"
},
{
"source": "security@debian.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00028.html"
},
{
"source": "security@debian.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html"
},
{
"source": "security@debian.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html"
},
{
"source": "security@debian.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00031.html"
},
{
"source": "security@debian.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html"
},
{
"source": "security@debian.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html"
},
{
"source": "security@debian.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html"
},
{
"source": "security@debian.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html"
},
{
"source": "security@debian.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html"
},
{
"source": "security@debian.org",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html"
},
{
"source": "security@debian.org",
"url": "http://marc.info/?l=linux-kernel\u0026m=145204362722256\u0026w=2"
},
{
"source": "security@debian.org",
"url": "http://marc.info/?l=linux-kernel\u0026m=145204641422813\u0026w=2"
},
{
"source": "security@debian.org",
"url": "http://www.debian.org/security/2016/dsa-3434"
},
{
"source": "security@debian.org",
"url": "http://www.openwall.com/lists/oss-security/2015/12/17/12"
},
{
"source": "security@debian.org",
"url": "http://www.openwall.com/lists/oss-security/2015/12/31/5"
},
{
"source": "security@debian.org",
"url": "http://www.securityfocus.com/bid/79899"
},
{
"source": "security@debian.org",
"url": "http://www.securitytracker.com/id/1034899"
},
{
"source": "security@debian.org",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1295287"
},
{
"source": "security@debian.org",
"url": "https://lkml.org/lkml/2015/12/25/71"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00015.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00025.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00026.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00027.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00028.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00029.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00030.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00031.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00032.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00033.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00034.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00036.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00037.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://marc.info/?l=linux-kernel\u0026m=145204362722256\u0026w=2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://marc.info/?l=linux-kernel\u0026m=145204641422813\u0026w=2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.debian.org/security/2016/dsa-3434"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2015/12/17/12"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2015/12/31/5"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/79899"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securitytracker.com/id/1034899"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1295287"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lkml.org/lkml/2015/12/25/71"
}
],
"sourceIdentifier": "security@debian.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-264"
}
],
"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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