CVE-2011-1739

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "secteam@freebsd.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:freebsd:freebsd:7.4:*:*:*:*:*:*:*", "matchCriteriaId": "0C94B745-BD27-423D-BBB6-A821CD9BC1C4", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:8.0:*:*:*:*:*:*:*", "matchCriteriaId": "3CF1F9EF-01AF-4708-AE02-765360AF3D66", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:8.1:*:*:*:*:*:*:*", "matchCriteriaId": "9899C87E-2C09-46AE-BC24-1ACF012784CA", "vulnerable": true}, {"criteria": "cpe:2.3:o:freebsd:freebsd:8.2:*:*:*:*:*:*:*", "matchCriteriaId": "DD5ECA1A-D9B4-4ED7-95EC-684E7AA2B765", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a -network field specifying a CIDR block with a prefix length that is not an integer multiple of 8, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances via an NFS mount request."}, {"lang": "es", "value": "La funci\u00f3n makemask en mountd.c en mountd en FreeBSD v7.4 a v8.2 no controla correctamente el campo de una red, la especificaci\u00f3n de un bloque CIDR con una longitud de prefijo que no es un m\u00faltiplo entero de 8, lo que permite a atacantes remotos evitar las restricciones de acceso previsto en oportunistas circunstancias a trav\u00e9s de un montaje de petici\u00f3n NFS."}], "id": "CVE-2011-1739", "lastModified": "2026-06-16T23:29:55.970", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2011-05-03T20:55:12.417", "references": [{"source": "secteam@freebsd.org", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/44307"}, {"source": "secteam@freebsd.org", "url": "http://security.FreeBSD.org/advisories/FreeBSD-SA-11:01.mountd.asc"}, {"source": "secteam@freebsd.org", "url": "http://securitytracker.com/id?1025425"}, {"source": "secteam@freebsd.org", "url": "http://www.securityfocus.com/bid/47517"}, {"source": "secteam@freebsd.org", "tags": ["Vendor Advisory"], "url": "http://www.vupen.com/english/advisories/2011/1076"}, {"source": "secteam@freebsd.org", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/66981"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/44307"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://security.FreeBSD.org/advisories/FreeBSD-SA-11:01.mountd.asc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://securitytracker.com/id?1025425"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/47517"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://www.vupen.com/english/advisories/2011/1076"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/66981"}], "sourceIdentifier": "secteam@freebsd.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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