{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2016-08-04T00:00:00", "descriptions": [{"lang": "en", "value": "The SwarmKit toolkit 1.12.0 for Docker allows remote authenticated users to cause a denial of service (prevention of cluster joins) via a long sequence of join and quit actions.  NOTE: the vendor disputes this issue, stating that this sequence is not \"removing the state that is left by old nodes. At some point the manager obviously stops being able to accept new nodes, since it runs out of memory. Given that both for Docker swarm and for Docker Swarmkit nodes are *required* to provide a secret token (it's actually the only mode of operation), this means that no adversary can simply join nodes and exhaust manager resources. We can't do anything about a manager running out of memory and not being able to add new legitimate nodes to the system. 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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:docker:docker:1.12.0:*:*:*:*:*:*:*", "matchCriteriaId": "23E0746F-B8B4-4B66-A540-9447B4690F14", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [{"sourceIdentifier": "cve@mitre.org", "tags": ["disputed"]}], "descriptions": [{"lang": "en", "value": "The SwarmKit toolkit 1.12.0 for Docker allows remote authenticated users to cause a denial of service (prevention of cluster joins) via a long sequence of join and quit actions.  NOTE: the vendor disputes this issue, stating that this sequence is not \"removing the state that is left by old nodes. At some point the manager obviously stops being able to accept new nodes, since it runs out of memory. Given that both for Docker swarm and for Docker Swarmkit nodes are *required* to provide a secret token (it's actually the only mode of operation), this means that no adversary can simply join nodes and exhaust manager resources. We can't do anything about a manager running out of memory and not being able to add new legitimate nodes to the system. This is merely a resource provisioning issue, and definitely not a CVE worthy vulnerability."}, {"lang": "es", "value": "** DISPUTADA ** El SwarmKit toolkit 1.12.0 para Docker permite a usuarios remotos autenticados provocar una denegaci\u00f3n de servicio (prevenci\u00f3n de entradas de cluster) a trav\u00e9s de una secuencia larga de acciones de entrada y salida. NOTA: el vendedor cuestiona este problema, afirmando que esta secuencia no \"elimina el estado que dejan los nodos anteriores. En alg\u00fan momento el administrador obviamente deja de ser capaz de aceptar nodos nuevos, ya que se le acaba la memoria. Ya que los nodos tanto de Docker swarm y Docker Swarmkit son \"necesarios* para proporcionar un token secreto (en realidad es el \u00fanico modo de operaci\u00f3n), esto significa que ning\u00fan adversario puede unir simplemente los nodos y agotar los recursos del administrador. No podemos hacer nada acerca de la p\u00e9rdida de memoria de un administrador y la incapacidad de a\u00f1adir nuevos nodos leg\u00edtimos al sistema. Esto es simplemente un problema de aprovisionamiento de recursos y no una vulnerabilidad merecedora de una CVE\"."}], "id": "CVE-2016-6595", "lastModified": "2025-04-12T10:46:40.837", "metrics": {"cvssMetricV2": [{"acInsufInfo": true, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-01-04T20:59:00.247", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/08/04/1"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/09/02/1"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/09/02/8"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/bid/92195"}, {"source": "cve@mitre.org", "url": "http://www.securitytracker.com/id/1036548"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/08/04/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/09/02/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/09/02/8"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/92195"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securitytracker.com/id/1036548"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-399"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "docker: DoS via repeatedly joining and quitting swarm cluster as a node", "id": "1364008", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1364008"}, "csaw": false, "cvss": {"cvss_base_score": "3.5", "cvss_scoring_vector": "AV:N/AC:M/Au:S/C:N/I:N/A:P", "status": "draft"}, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["The SwarmKit toolkit 1.12.0 for Docker allows remote authenticated users to cause a denial of service (prevention of cluster joins) via a long sequence of join and quit actions.  NOTE: the vendor disputes this issue, stating that this sequence is not \"removing the state that is left by old nodes. At some point the manager obviously stops being able to accept new nodes, since it runs out of memory. Given that both for Docker swarm and for Docker Swarmkit nodes are *required* to provide a secret token (it's actually the only mode of operation), this means that no adversary can simply join nodes and exhaust manager resources. We can't do anything about a manager running out of memory and not being able to add new legitimate nodes to the system. This is merely a resource provisioning issue, and definitely not a CVE worthy vulnerability."], "name": "CVE-2016-6595", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Will not fix", "package_name": "docker", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:openshift:3", "fix_state": "Not affected", "package_name": "docker", "product_name": "Red Hat OpenShift Enterprise 3"}], "public_date": "2016-07-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-6595\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-6595"], "threat_severity": "Low"}