CVE-2011-3348 (GCVE-0-2011-3348)
Vulnerability from cvelistv5 – Published: 2011-09-19 15:00 – Updated: 2024-08-06 23:29
VLAI
EPSS
VEX
Summary
The mod_proxy_ajp module in the Apache HTTP Server before 2.2.21, when used with mod_proxy_balancer in certain configurations, allows remote attackers to cause a denial of service (temporary "error state" in the backend server) via a malformed HTTP request.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
30 references
Date Public
2011-09-14 00:00
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"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-400\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2011-3348\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2011-09-20T05:55:02.983\",\"lastModified\":\"2026-04-29T01:13:23.040\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The mod_proxy_ajp module in the Apache HTTP Server before 2.2.21, when used with mod_proxy_balancer in certain configurations, allows remote attackers to cause a denial of service (temporary \\\"error state\\\" in the backend server) via a malformed HTTP request.\"},{\"lang\":\"es\",\"value\":\"El m\u00f3dulo mod_proxy_ajp en el Apache HTTP Server antes de v2.2.21, cuando se usa con mod_proxy_balancer en algunas configuraciones, permite a atacantes remotos provocar una denegaci\u00f3n de servicio (\\\"error state\\\" temporal en el \\\"back-end\\\" del servidor) a trav\u00e9s de una petici\u00f3n HTTP mal 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"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-05-14T15:17:14+00:00",
"cve": "CVE-2011-3348",
"id": "CVE-2011-3348",
"initial_release_date": "2011-09-14T00:00:00+00:00",
"product_status:fixed": "47",
"product_status:known_not_affected": "2",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "httpd: mod_proxy_ajp remote temporary DoS",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2011/cve-2011-3348.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2025-10-08T01:11:56Z",
"cve": "CVE-2011-3348",
"id": "CVE-2011-3348",
"initial_release_date": "2023-02-15T05:51:02Z",
"product_status:recommended": "40",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2011-3348",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2011-3348.json",
"version": "6"
}
}
}
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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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