{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2016-02-19T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "The aufs module for the Linux kernel 3.x and 4.x does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an aufs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-10-18T20:06:12.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"name": "96839", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/96839"}, {"tags": ["x_refsource_MISC"], "url": "http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/"}, {"name": "[oss-security] 20160224 Aufs Union Filesystem Privilege Escalation In User Namespaces", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2016/02/24/9"}, {"name": "[aufs] 20160219 aufs3 and aufs4 GIT release", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "https://sourceforge.net/p/aufs/mailman/message/34864744/"}, {"name": "[oss-security] 20211018 Re: CVE-2021-3847: OverlayFS - Potential Privilege Escalation using overlays copy_up", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2021/10/18/1"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2016-2853", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "The aufs module for the Linux kernel 3.x and 4.x does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an aufs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "96839", "refsource": "BID", "url": "http://www.securityfocus.com/bid/96839"}, {"name": "http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/", "refsource": "MISC", "url": "http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/"}, {"name": "[oss-security] 20160224 Aufs Union Filesystem Privilege Escalation In User Namespaces", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2016/02/24/9"}, {"name": "[aufs] 20160219 aufs3 and aufs4 GIT release", "refsource": "MLIST", "url": "https://sourceforge.net/p/aufs/mailman/message/34864744/"}, {"name": "[oss-security] 20211018 Re: CVE-2021-3847: OverlayFS - Potential Privilege Escalation using overlays copy_up", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2021/10/18/1"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T23:32:21.339Z"}, "title": "CVE Program Container", "references": [{"name": "96839", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/96839"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/"}, {"name": "[oss-security] 20160224 Aufs Union Filesystem Privilege Escalation In User Namespaces", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2016/02/24/9"}, {"name": "[aufs] 20160219 aufs3 and aufs4 GIT release", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "https://sourceforge.net/p/aufs/mailman/message/34864744/"}, {"name": "[oss-security] 20211018 Re: CVE-2021-3847: OverlayFS - Potential Privilege Escalation using overlays copy_up", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2021/10/18/1"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2016-2853", "datePublished": "2016-05-02T10:00:00.000Z", "dateReserved": "2016-03-06T00:00:00.000Z", "dateUpdated": "2024-08-05T23:32:21.339Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "480F226E-935E-4AA0-AEDC-7A164F28B1A0", "versionEndIncluding": "3.19.8", "versionStartIncluding": "3.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7FF42CEC-BC1A-4932-AD2D-004152E895B3", "versionEndIncluding": "4.20.15", "versionStartIncluding": "4.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The aufs module for the Linux kernel 3.x and 4.x does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an aufs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program."}, {"lang": "es", "value": "El m\u00f3dulo aufs para el kernel de Linux 3.x y 4.x no restringe correctamente el espacio de nombres de montaje, lo que permite a usuarios locales obtener privilegos montando un sistema de archivos aufs sobre un sistema de archivos FUSE y luego ejecutando un programa setuid manipulado."}], "id": "CVE-2016-2853", "lastModified": "2026-05-06T22:30:45.220", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.4, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2016-05-02T10:59:33.160", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/02/24/9"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/10/18/1"}, {"source": "cve@mitre.org", "tags": ["Broken Link"], "url": "http://www.securityfocus.com/bid/96839"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://sourceforge.net/p/aufs/mailman/message/34864744/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2016/02/24/9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/10/18/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "http://www.securityfocus.com/bid/96839"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://sourceforge.net/p/aufs/mailman/message/34864744/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-269"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: aufs module does not properly restrict the mount namespace", "id": "1871722", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1871722"}, "csaw": false, "cvss3": {"cvss3_base_score": "0.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:N", "status": "draft"}, "cwe": "CWE-284", "details": ["The aufs module for the Linux kernel 3.x and 4.x does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an aufs filesystem on top of a FUSE filesystem, and then executing a crafted setuid program."], "name": "CVE-2016-2853", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-alt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2016-02-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-2853\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-2853"]}

{}