FKIE_CVE-2016-8649
Vulnerability from fkie_nvd - Published: 2017-05-01 06:59 - Updated: 2026-06-17 00:54
Severity
Summary
lxc-attach in LXC before 1.0.9 and 2.x before 2.0.6 allows an attacker inside of an unprivileged container to use an inherited file descriptor, of the host's /proc, to access the rest of the host's filesystem via the openat() family of syscalls.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linuxcontainers | lxc | * | |
| linuxcontainers | lxc | * |
{
"affected": [
{
"affectedData": [
{
"product": "LXC before 1.0.9 and 2.x before 2.0.6",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "LXC before 1.0.9 and 2.x before 2.0.6"
}
]
}
],
"source": "secalert@redhat.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:linuxcontainers:lxc:*:*:*:*:*:*:*:*",
"matchCriteriaId": "83629BC8-27B7-479D-A128-EFA5630BB184",
"versionEndExcluding": "1.0.9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:linuxcontainers:lxc:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B65EC152-48AC-43E9-A1DF-E76C953508A5",
"versionEndExcluding": "2.0.6",
"versionStartIncluding": "2.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "lxc-attach in LXC before 1.0.9 and 2.x before 2.0.6 allows an attacker inside of an unprivileged container to use an inherited file descriptor, of the host\u0027s /proc, to access the rest of the host\u0027s filesystem via the openat() family of syscalls."
},
{
"lang": "es",
"value": "lxc-attach en LXC entre las versiones 1.0.9 y 2.x hasta la versi\u00f3n 2.0.6 permite que un atacante dentro de un contenedor sin privilegios, utilice un descriptor de archivo heredado de la carpeta /proc del host para acceder al resto del sistema de archivos del host a trav\u00e9s de llamadas al sistema openat()."
}
],
"id": "CVE-2016-8649",
"lastModified": "2026-06-17T00:54:44.587",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "COMPLETE",
"baseScore": 9.0,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"version": "3.0"
},
"exploitabilityScore": 2.3,
"impactScore": 6.0,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2017-05-01T06:59:00.157",
"references": [
{
"source": "secalert@redhat.com",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/94498"
},
{
"source": "secalert@redhat.com",
"tags": [
"Third Party Advisory"
],
"url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845465"
},
{
"source": "secalert@redhat.com",
"tags": [
"Third Party Advisory"
],
"url": "https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1639345"
},
{
"source": "secalert@redhat.com",
"tags": [
"Issue Tracking",
"Patch"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1398242"
},
{
"source": "secalert@redhat.com",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://github.com/lxc/lxc/commit/81f466d05f2a89cb4f122ef7f593ff3f279b165c"
},
{
"source": "secalert@redhat.com",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "https://security-tracker.debian.org/tracker/CVE-2016-8649"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/94498"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845465"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1639345"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking",
"Patch"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1398242"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://github.com/lxc/lxc/commit/81f466d05f2a89cb4f122ef7f593ff3f279b165c"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "https://security-tracker.debian.org/tracker/CVE-2016-8649"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-264"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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