CVE-2011-4868 (GCVE-0-2011-4868)
Vulnerability from cvelistv5 – Published: 2012-01-15 02:00 – Updated: 2024-08-07 00:16
VLAI
EPSS
VEX
Summary
The logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS (DDNS) and issuing IPv6 addresses, does not properly handle the DHCPv6 lease structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets related to a lease-status update.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://kb.isc.org/article/AA-00705 | x_refsource_CONFIRM |
| https://www.isc.org/software/dhcp/advisories/cve-… | x_refsource_CONFIRM |
| https://deepthought.isc.org/article/AA-00595 | x_refsource_CONFIRM |
| http://security.gentoo.org/glsa/glsa-201301-06.xml | vendor-advisoryx_refsource_GENTOO |
Date Public
2012-01-12 00:00
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"lang": "en",
"value": "The logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS (DDNS) and issuing IPv6 addresses, does not properly handle the DHCPv6 lease structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets related to a lease-status update."
},
{
"lang": "es",
"value": "La funcionalidad de registro en el dhcpd de ISC DHCP anterior a v4.2.3-P2, cuando se utiliza DNS din\u00e1mico (DDNS) y direcciones IPv6, no maneja correctamente la estructura de arrendamiento (lease structure) DHCPv6, permitiendo a atacantes remotos provocar una denegaci\u00f3n de servicio (puntero a NULL y el ca\u00edda del servicio) mediante paquetes especialmente elaborados en relaci\u00f3n con una actualizaci\u00f3n lease-status."
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"id": "CVE-2011-4868",
"lastModified": "2024-11-21T01:33:09.503",
"metrics": {
"cvssMetricV2": [
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"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "ADJACENT_NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 6.1,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
},
"exploitabilityScore": 6.5,
"impactScore": 6.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
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"published": "2012-01-15T03:55:12.953",
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"source": "cve@mitre.org",
"url": "http://security.gentoo.org/glsa/glsa-201301-06.xml"
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"negate": false,
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]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS (DDNS) and issuing IPv6 addresses, does not properly handle the DHCPv6 lease structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets related to a lease-status update."
},
{
"lang": "es",
"value": "La funcionalidad de registro en el dhcpd de ISC DHCP anterior a v4.2.3-P2, cuando se utiliza DNS din\u00e1mico (DDNS) y direcciones IPv6, no maneja correctamente la estructura de arrendamiento (lease structure) DHCPv6, permitiendo a atacantes remotos provocar una denegaci\u00f3n de servicio (puntero a NULL y el ca\u00edda del servicio) mediante paquetes especialmente elaborados en relaci\u00f3n con una actualizaci\u00f3n lease-status."
}
],
"id": "CVE-2011-4868",
"lastModified": "2026-04-29T01:13:23.040",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "ADJACENT_NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 6.1,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
},
"exploitabilityScore": 6.5,
"impactScore": 6.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2012-01-15T03:55:12.953",
"references": [
{
"source": "cve@mitre.org",
"url": "http://security.gentoo.org/glsa/glsa-201301-06.xml"
},
{
"source": "cve@mitre.org",
"url": "https://deepthought.isc.org/article/AA-00595"
},
{
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"url": "https://kb.isc.org/article/AA-00705"
},
{
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"tags": [
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},
{
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"url": "http://security.gentoo.org/glsa/glsa-201301-06.xml"
},
{
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"url": "https://deepthought.isc.org/article/AA-00595"
},
{
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"url": "https://kb.isc.org/article/AA-00705"
},
{
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"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-399"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
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},
"redhat_vex": {
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"current_release_date": "2025-11-21T12:54:38+00:00",
"cve": "CVE-2011-4868",
"id": "CVE-2011-4868",
"initial_release_date": "2011-01-01T00:00:00+00:00",
"product_status:known_not_affected": "7",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "dhcp: error in DDNS processing of DHCPv6 leases can cause ISC dhcpd crash",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2011/cve-2011-4868.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "low",
"current_release_date": "2026-08-27T02:11:33Z",
"cve": "CVE-2011-4868",
"id": "CVE-2011-4868",
"initial_release_date": "2023-02-15T05:49:42Z",
"product_status:recommended": "186",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2011-4868",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2011-4868.json",
"version": "17"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- 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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