CVE-2009-0537
Estado: ModificadaMedia (4.9)—
Integer overflow in the fts_build function in fts.c in libc in (1) OpenBSD 4.4 and earlier and (2) Microsoft Interix 6.0 build 10.0.6030.0 allows context-dependent attackers to cause a denial of service (application crash) via a deep directory tree, related to the fts_level structure member, as demonstrated by (a) du, (b) rm, (c) chmod, and (d) chgrp on OpenBSD; and (e) SearchIndexer.exe on Vista Enterprise.
CVSS
- Versión: 2.0
- Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
- Puntuación base: 4.9
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 3.59%
- Percentil entre todas las CVEs puntuadas: 89
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (2)
CWE
- CWE-189
Referencias
- http://securityreason.com/achievement_securityalert/60
- http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c
- http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c.diff?r1=1.41%3Br2=1.42%3Bf=h
- http://www.securityfocus.com/archive/1/501505/100/0/threaded
- http://www.securityfocus.com/bid/34008
- http://www.securitytracker.com/id?1021818
- https://www.exploit-db.com/exploits/8163
- http://securityreason.com/achievement_securityalert/60
- http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c
- http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c.diff?r1=1.41%3Br2=1.42%3Bf=h
- http://www.securityfocus.com/archive/1/501505/100/0/threaded
- http://www.securityfocus.com/bid/34008
- http://www.securitytracker.com/id?1021818
- https://www.exploit-db.com/exploits/8163
JSON original (NVD)
Mostrar
{
"id": "CVE-2009-0537",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 4.9,
"accessVector": "LOCAL",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "COMPLETE",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 6.9,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 3.9,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2009-03-09T21:30:00.203",
"references": [
{
"url": "http://securityreason.com/achievement_securityalert/60",
"source": "cve@mitre.org"
},
{
"url": "http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c",
"tags": [
"Vendor Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c.diff?r1=1.41%3Br2=1.42%3Bf=h",
"source": "cve@mitre.org"
},
{
"url": "http://www.securityfocus.com/archive/1/501505/100/0/threaded",
"source": "cve@mitre.org"
},
{
"url": "http://www.securityfocus.com/bid/34008",
"tags": [
"Exploit"
],
"source": "cve@mitre.org"
},
{
"url": "http://www.securitytracker.com/id?1021818",
"source": "cve@mitre.org"
},
{
"url": "https://www.exploit-db.com/exploits/8163",
"source": "cve@mitre.org"
},
{
"url": "http://securityreason.com/achievement_securityalert/60",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/gen/fts.c.diff?r1=1.41%3Br2=1.42%3Bf=h",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.securityfocus.com/archive/1/501505/100/0/threaded",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.securityfocus.com/bid/34008",
"tags": [
"Exploit"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.securitytracker.com/id?1021818",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.exploit-db.com/exploits/8163",
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-189"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Integer overflow in the fts_build function in fts.c in libc in (1) OpenBSD 4.4 and earlier and (2) Microsoft Interix 6.0 build 10.0.6030.0 allows context-dependent attackers to cause a denial of service (application crash) via a deep directory tree, related to the fts_level structure member, as demonstrated by (a) du, (b) rm, (c) chmod, and (d) chgrp on OpenBSD; and (e) SearchIndexer.exe on Vista Enterprise."
},
{
"lang": "es",
"value": "Desbordamiento de entero en la función fts_build en fts.c de libc sobre (1) OpenBSD v4.4 y anteriores y (2) Microsoft Interix v6.0 build 10.0.6030.0, permiten a atacantes, dependiendo del contexto, provocar una denegación de servicio (caída de la aplicación) a través de un arbol de directorio profundo, relativo al miembro de la estructura fts_level, como se ha demostrado por (a) du, (b) rm, (c) chmod, y (d) chgrp en OpenBSD; y (e)SearchIndexer.exe en Vista Enterprise."
}
],
"lastModified": "2026-06-16T23:05:15.360",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:interix:6.0:*:10.0.6030.0:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "83ACC103-E369-4067-8387-8FDF89D90AD1"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FAB41EFD-70AF-41E5-B17E-44DF68D5A6B8",
"versionEndIncluding": "4.4"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:2.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "36DF0D51-FCFA-46A3-B834-E80DFA91DFDC"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:2.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5CB726CF-ADA2-4CDA-9786-1E84AC53740A"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:2.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1FC373FC-88AC-4B6D-A289-51881ACD57F7"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:2.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1D2DA7F0-E3C0-447A-A2B0-ECC928389D84"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:2.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FEBE290B-5EC6-4BBA-B645-294C150E417A"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:2.5:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "ACE7FDFB-C6A6-4B58-B0B4-236E4EA76EF6"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:2.6:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0DF053A1-C252-427E-9EEF-27240F422976"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:2.7:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "48A9C344-45AA-47B9-B35A-1A62E220D9C6"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:2.8:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "80EB24F0-46A7-481B-83ED-8BB012AE0C8E"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:2.9:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AA6AEAF0-FA61-4A3F-A083-1218C2027781"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:3.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "60DA30A1-3360-46BC-85B7-008D535F95BE"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:3.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DA33E7E2-DE7B-411E-8991-718DA0988C51"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:3.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1957B3C0-7F25-469B-BC3F-7B09260837ED"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:3.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AC46909F-DDFC-448B-BCDF-1EB343F96630"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:3.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9496279F-AB43-4B53-81A6-87C651ABC4BA"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:3.5:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BDA160D4-5CAB-44E7-880A-59DD98FEAD62"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:3.6:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D4D84D7A-EB7C-4196-B8B6-7B703C8055C2"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:3.7:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AEAE2873-0028-4744-B64E-8E2EA30447F6"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:3.8:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "783973F9-2A6E-4DDF-A64C-7794FFD0B7B9"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:3.9:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F5BB6C5D-4C43-4BB8-B1CE-A70BBE650CA1"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:4.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CC77812C-D84E-493E-9D21-1BA6C2129E70"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:4.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "16C117F3-3684-4683-9F9E-CEDD5B88F9CA"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:4.2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9DF8DD37-A337-4E9D-A34E-C2D561A24285"
},
{
"criteria": "cpe:2.3:o:openbsd:openbsd:4.3:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F12313A0-1EAF-4652-9AB1-799171CFFEA9"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "cve@mitre.org"
}