FKIE_CVE-2006-0883
Vulnerability from fkie_nvd - Published: 2006-03-07 02:02 - Updated: 2026-06-16 22:21
Severity
Summary
OpenSSH on FreeBSD 5.3 and 5.4, when used with OpenPAM, does not properly handle when a forked child process terminates during PAM authentication, which allows remote attackers to cause a denial of service (client connection refusal) by connecting multiple times to the SSH server, waiting for the password prompt, then disconnecting.
References
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "secteam@freebsd.org"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:a:openbsd:openssh:3.8.1p1:*:*:*:*:*:*:*",
"matchCriteriaId": "C35F4ABE-1B0C-4195-8F99-BF993A17882B",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
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"matchCriteriaId": "D8A80E6A-6502-4A33-83BA-7DCC606D79AA",
"vulnerable": true
},
{
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"matchCriteriaId": "0D6428EB-5E1A-41CB-979C-4C9402251D8B",
"vulnerable": true
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"criteria": "cpe:2.3:o:freebsd:freebsd:5.3:releng:*:*:*:*:*:*",
"matchCriteriaId": "2DCA9879-C9F5-475A-8EC9-04D151001C8D",
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"criteria": "cpe:2.3:o:freebsd:freebsd:5.3:stable:*:*:*:*:*:*",
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"criteria": "cpe:2.3:o:freebsd:freebsd:5.4:pre-release:*:*:*:*:*:*",
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"matchCriteriaId": "3F629879-66F0-427B-86D8-D740E0E3F6E8",
"vulnerable": true
},
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"vulnerable": true
}
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}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "OpenSSH on FreeBSD 5.3 and 5.4, when used with OpenPAM, does not properly handle when a forked child process terminates during PAM authentication, which allows remote attackers to cause a denial of service (client connection refusal) by connecting multiple times to the SSH server, waiting for the password prompt, then disconnecting."
}
],
"id": "CVE-2006-0883",
"lastModified": "2026-06-16T22:21:28.423",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2006-03-07T02:02:00.000",
"references": [
{
"source": "secteam@freebsd.org",
"url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:09.openssh.asc"
},
{
"source": "secteam@freebsd.org",
"url": "http://bugzilla.mindrot.org/show_bug.cgi?id=839"
},
{
"source": "secteam@freebsd.org",
"url": "http://securityreason.com/securityalert/520"
},
{
"source": "secteam@freebsd.org",
"tags": [
"Patch"
],
"url": "http://securitytracker.com/id?1015706"
},
{
"source": "secteam@freebsd.org",
"url": "http://www.osvdb.org/23797"
},
{
"source": "secteam@freebsd.org",
"tags": [
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],
"url": "http://www.securityfocus.com/bid/16892"
},
{
"source": "secteam@freebsd.org",
"tags": [
"Vendor Advisory"
],
"url": "http://www.vupen.com/english/advisories/2006/0805"
},
{
"source": "secteam@freebsd.org",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/25116"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:09.openssh.asc"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://bugzilla.mindrot.org/show_bug.cgi?id=839"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://securityreason.com/securityalert/520"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "http://securitytracker.com/id?1015706"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.osvdb.org/23797"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "http://www.securityfocus.com/bid/16892"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://www.vupen.com/english/advisories/2006/0805"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/25116"
}
],
"sourceIdentifier": "secteam@freebsd.org",
"vendorComments": [
{
"comment": "This issue did not affect the versions of OpenSSH as distributed with Red Hat Enterprise Linux 2.1, 3, or 4.",
"lastModified": "2006-08-30T00:00:00",
"organization": "Red Hat"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-399"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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- 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
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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.
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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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