CVE-2011-4885 (GCVE-0-2011-4885)
Vulnerability from cvelistv5 – Published: 2011-12-30 01:00 – Updated: 2024-08-07 00:16
VLAI
EPSS
VEX
Summary
PHP before 5.3.9 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
27 references
Date Public
2011-12-28 00:00
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"value": "PHP before 5.3.9 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters."
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{
"lang": "es",
"value": "PHP anterior a v5.3.9 calcula los valores hash de los par\u00e1metros de forma, sin restringir la capacidad de desencadenar colisiones hash predecible, lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (consumo de CPU) mediante el env\u00edo de gran cantidad de par\u00e1metros a mano."
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"acInsufInfo": false,
"baseSeverity": "MEDIUM",
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"accessVector": "NETWORK",
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"version": "2.0"
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],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "PHP before 5.3.9 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters."
},
{
"lang": "es",
"value": "PHP anterior a v5.3.9 calcula los valores hash de los par\u00e1metros de forma, sin restringir la capacidad de desencadenar colisiones hash predecible, lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (consumo de CPU) mediante el env\u00edo de gran cantidad de par\u00e1metros a mano."
}
],
"id": "CVE-2011-4885",
"lastModified": "2026-04-29T01:13:23.040",
"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": "2011-12-30T01:55:01.563",
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},
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{
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{
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{
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{
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{
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],
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{
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},
{
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"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:150"
},
{
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"url": "http://www.nruns.com/_downloads/advisory28122011.pdf"
},
{
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},
{
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],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2025-11-21T12:54:47+00:00",
"cve": "CVE-2011-4885",
"id": "CVE-2011-4885",
"initial_release_date": "2011-12-28T00:00:00+00:00",
"product_status:fixed": "1551",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "php: hash table collisions CPU usage DoS (oCERT-2011-003)",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2011/cve-2011-4885.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-02T12:58:58Z",
"cve": "CVE-2011-4885",
"id": "CVE-2011-4885",
"initial_release_date": "2023-02-15T05:49:41Z",
"product_status:known_affected": "636",
"product_status:recommended": "580",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2011-4885",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2011-4885.json",
"version": "21"
}
}
}
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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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