FKIE_CVE-2009-4147
Vulnerability from fkie_nvd - Published: 2009-12-02 19:30 - Updated: 2026-06-16 23:13
Severity
Summary
The _rtld function in the Run-Time Link-Editor (rtld) in libexec/rtld-elf/rtld.c in FreeBSD 7.1 and 8.0 does not clear the (1) LD_LIBMAP, (2) LD_LIBRARY_PATH, (3) LD_LIBMAP_DISABLE, (4) LD_DEBUG, and (5) LD_ELF_HINTS_PATH environment variables, which allows local users to gain privileges by executing a setuid or setguid program with a modified variable containing an untrusted search path that points to a Trojan horse library, different vectors than CVE-2009-4146.
References
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "cve@mitre.org"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:freebsd:freebsd:7.1:*:*:*:*:*:*:*",
"matchCriteriaId": "803EFA9F-B7CB-4511-B1C1-381170CA9A23",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:freebsd:freebsd:8.0:*:*:*:*:*:*:*",
"matchCriteriaId": "3CF1F9EF-01AF-4708-AE02-765360AF3D66",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The _rtld function in the Run-Time Link-Editor (rtld) in libexec/rtld-elf/rtld.c in FreeBSD 7.1 and 8.0 does not clear the (1) LD_LIBMAP, (2) LD_LIBRARY_PATH, (3) LD_LIBMAP_DISABLE, (4) LD_DEBUG, and (5) LD_ELF_HINTS_PATH environment variables, which allows local users to gain privileges by executing a setuid or setguid program with a modified variable containing an untrusted search path that points to a Trojan horse library, different vectors than CVE-2009-4146."
},
{
"lang": "es",
"value": "La funci\u00f3n _rtld en Run-Time Link-Editor (rtld) en libexec/rtld-elf/rtld.c en FreeBSD v7.1 y v8.0 no limpia las variables de entorno de (1) LD_LIBMAP, (2) LD_LIBRARY_PATH, (3) LD_LIBMAP_DISABLE, (4) LD_DEBUG, and (5) LD_ELF_HINTS_PATH lo que permite a usuarios locales conseguir privilegios mediante la ejecuci\u00f3n de un programa setuid o setguid con una variable modificada que contiene una ruta de b\u00fasqueda sin confianza que apunta a una libreria de un troyano con vectores diferentes que CVE-2009-4146."
}
],
"id": "CVE-2009-4147",
"lastModified": "2026-06-16T23:13:07.797",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.2,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 10.0,
"obtainAllPrivilege": true,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2009-12-02T19:30:00.217",
"references": [
{
"source": "cve@mitre.org",
"url": "http://packetstormsecurity.com/files/152997/FreeBSD-rtld-execl-Privilege-Escalation.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch"
],
"url": "http://people.freebsd.org/~cperciva/rtld.patch"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/37517"
},
{
"source": "cve@mitre.org",
"url": "http://www.securityfocus.com/archive/1/508142/100/0/threaded"
},
{
"source": "cve@mitre.org",
"url": "http://www.securityfocus.com/archive/1/508146/100/0/threaded"
},
{
"source": "cve@mitre.org",
"tags": [
"Exploit"
],
"url": "http://www.securityfocus.com/bid/37154"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch"
],
"url": "http://www.securitytracker.com/id?1023250"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://packetstormsecurity.com/files/152997/FreeBSD-rtld-execl-Privilege-Escalation.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "http://people.freebsd.org/~cperciva/rtld.patch"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://secunia.com/advisories/37517"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/archive/1/508142/100/0/threaded"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/archive/1/508146/100/0/threaded"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit"
],
"url": "http://www.securityfocus.com/bid/37154"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "http://www.securitytracker.com/id?1023250"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-264"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date | Other |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
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- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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