fkie_cve-2016-6213
Vulnerability from fkie_nvd
Published
2016-12-28 07:59
Modified
2025-04-12 10:46
Severity ?
Summary
fs/namespace.c in the Linux kernel before 4.9 does not restrict how many mounts may exist in a mount namespace, which allows local users to cause a denial of service (memory consumption and deadlock) via MS_BIND mount system calls, as demonstrated by a loop that triggers exponential growth in the number of mounts.
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
linux | linux_kernel | * |
{ "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "3C328078-DE6F-4775-B855-1B0759412F43", "versionEndIncluding": "4.8.15", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "fs/namespace.c in the Linux kernel before 4.9 does not restrict how many mounts may exist in a mount namespace, which allows local users to cause a denial of service (memory consumption and deadlock) via MS_BIND mount system calls, as demonstrated by a loop that triggers exponential growth in the number of mounts." }, { "lang": "es", "value": "fs/namespace.c en el kernel de Linux en versiones anteriores a 4.9 no restringe la cantidad de montajes que pueden existir en un espacio de nombre del montaje, lo que permite a usuarios locales provocar una denegaci\u00f3n de servicio (consumo de memoria y punto muerto) a trav\u00e9s de llamadas al sistema de montaje MS_BIND, seg\u00fan lo demostrado por un bucle que desencadena un crecimiento exponencial en el n\u00famero de montajes." } ], "id": "CVE-2016-6213", "lastModified": "2025-04-12T10:46:40.837", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": { "accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 4.7, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0" }, "exploitabilityScore": 3.4, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ], "cvssMetricV30": [ { "cvssData": { "attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.0" }, "exploitabilityScore": 1.0, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2016-12-28T07:59:00.180", "references": [ { "source": "cve@mitre.org", "tags": [ "Patch", "Vendor Advisory" ], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d29216842a85c7970c536108e093963f02714498" }, { "source": "cve@mitre.org", "tags": [ "Mailing List" ], "url": "http://www.openwall.com/lists/oss-security/2016/07/13/8" }, { "source": "cve@mitre.org", "url": "http://www.securityfocus.com/bid/91754" }, { "source": "cve@mitre.org", "url": "https://access.redhat.com/errata/RHSA-2017:1842" }, { "source": "cve@mitre.org", "url": "https://access.redhat.com/errata/RHSA-2017:2077" }, { "source": "cve@mitre.org", "tags": [ "Issue Tracking" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1356471" }, { "source": "cve@mitre.org", "tags": [ "Patch" ], "url": "https://github.com/torvalds/linux/commit/d29216842a85c7970c536108e093963f02714498" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch", "Vendor Advisory" ], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d29216842a85c7970c536108e093963f02714498" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List" ], "url": "http://www.openwall.com/lists/oss-security/2016/07/13/8" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/91754" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://access.redhat.com/errata/RHSA-2017:1842" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://access.redhat.com/errata/RHSA-2017:2077" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1356471" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Patch" ], "url": "https://github.com/torvalds/linux/commit/d29216842a85c7970c536108e093963f02714498" } ], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Deferred", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-400" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- 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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