FKIE_CVE-2011-4858
Vulnerability from fkie_nvd - Published: 2012-01-05 19:55 - Updated: 2026-04-29 01:13
Severity ?
Summary
Apache Tomcat before 5.5.35, 6.x before 6.0.35, and 7.x before 7.0.23 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.
References
Impacted products
{
"configurations": [
{
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{
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{
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{
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{
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"matchCriteriaId": "08022987-B36B-4F63-88A5-A8F59195DF4A",
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{
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"matchCriteriaId": "FD55B338-9DBE-4643-ABED-A08964D3AF7C",
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{
"criteria": "cpe:2.3:a:apache:tomcat:7.0.19:*:*:*:*:*:*:*",
"matchCriteriaId": "0D4F710E-06EA-48F4-AC6A-6F143950F015",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:apache:tomcat:7.0.20:*:*:*:*:*:*:*",
"matchCriteriaId": "2C4936C2-0B2D-4C44-98C3-443090965F5E",
"vulnerable": true
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{
"criteria": "cpe:2.3:a:apache:tomcat:7.0.21:*:*:*:*:*:*:*",
"matchCriteriaId": "48453405-2319-4327-9F4C-6F70B49452C6",
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{
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"matchCriteriaId": "49DD9544-6424-41A6-AEC0-EC19B8A10E71",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Apache Tomcat before 5.5.35, 6.x before 6.0.35, and 7.x before 7.0.23 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": "Apache Tomcat antes de v5.5.35, v6.x antes de v6.0.35 y v7.x antes de v7.0.23 calcula los valores hash de los par\u00e1metros de los formularios, sin restringir la capacidad de desencadenar colisiones de hash de forma predecible. Esto permite a atacantes remotos provocar una denegaci\u00f3n de servicio (por consumo de CPU) mediante el env\u00edo de gran cantidad de par\u00e1metros especialmente modificados."
}
],
"id": "CVE-2011-4858",
"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": "2012-01-05T19:55:01.033",
"references": [
{
"source": "cve@mitre.org",
"url": "http://mail-archives.apache.org/mod_mbox/tomcat-announce/201112.mbox/%3c4EFB9800.5010106%40apache.org%3e"
},
{
"source": "cve@mitre.org",
"url": "http://marc.info/?l=bugtraq\u0026m=132871655717248\u0026w=2"
},
{
"source": "cve@mitre.org",
"url": "http://marc.info/?l=bugtraq\u0026m=133294394108746\u0026w=2"
},
{
"source": "cve@mitre.org",
"url": "http://marc.info/?l=bugtraq\u0026m=136485229118404\u0026w=2"
},
{
"source": "cve@mitre.org",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0074.html"
},
{
"source": "cve@mitre.org",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0075.html"
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{
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"url": "http://rhn.redhat.com/errata/RHSA-2012-0076.html"
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{
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{
"source": "cve@mitre.org",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0078.html"
},
{
"source": "cve@mitre.org",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0089.html"
},
{
"source": "cve@mitre.org",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0325.html"
},
{
"source": "cve@mitre.org",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0406.html"
},
{
"source": "cve@mitre.org",
"url": "http://secunia.com/advisories/48549"
},
{
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"url": "http://secunia.com/advisories/48790"
},
{
"source": "cve@mitre.org",
"url": "http://secunia.com/advisories/48791"
},
{
"source": "cve@mitre.org",
"url": "http://secunia.com/advisories/54971"
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{
"source": "cve@mitre.org",
"url": "http://secunia.com/advisories/55115"
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{
"source": "cve@mitre.org",
"url": "http://tomcat.apache.org/tomcat-7.0-doc/changelog.html"
},
{
"source": "cve@mitre.org",
"url": "http://www.debian.org/security/2012/dsa-2401"
},
{
"source": "cve@mitre.org",
"tags": [
"US Government Resource"
],
"url": "http://www.kb.cert.org/vuls/id/903934"
},
{
"source": "cve@mitre.org",
"url": "http://www.nruns.com/_downloads/advisory28122011.pdf"
},
{
"source": "cve@mitre.org",
"url": "http://www.ocert.org/advisories/ocert-2011-003.html"
},
{
"source": "cve@mitre.org",
"url": "http://www.securityfocus.com/bid/51200"
},
{
"source": "cve@mitre.org",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=750521"
},
{
"source": "cve@mitre.org",
"url": "https://github.com/FireFart/HashCollision-DOS-POC/blob/master/HashtablePOC.py"
},
{
"source": "cve@mitre.org",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18886"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://mail-archives.apache.org/mod_mbox/tomcat-announce/201112.mbox/%3c4EFB9800.5010106%40apache.org%3e"
},
{
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{
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{
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{
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"url": "http://rhn.redhat.com/errata/RHSA-2012-0074.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0075.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0076.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0077.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0078.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0089.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0325.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://rhn.redhat.com/errata/RHSA-2012-0406.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/48549"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/48790"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/48791"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/54971"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/55115"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://tomcat.apache.org/tomcat-7.0-doc/changelog.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.debian.org/security/2012/dsa-2401"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"US Government Resource"
],
"url": "http://www.kb.cert.org/vuls/id/903934"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.nruns.com/_downloads/advisory28122011.pdf"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.ocert.org/advisories/ocert-2011-003.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/51200"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=750521"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/FireFart/HashCollision-DOS-POC/blob/master/HashtablePOC.py"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18886"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-399"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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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