FKIE_CVE-2002-0839
Vulnerability from fkie_nvd - Published: 2002-10-11 04:00 - Updated: 2026-06-16 21:58
Severity
Summary
The shared memory scoreboard in the HTTP daemon for Apache 1.3.x before 1.3.27 allows any user running as the Apache UID to send a SIGUSR1 signal to any process as root, resulting in a denial of service (process kill) or possibly other behaviors that would not normally be allowed, by modifying the parent[].pid and parent[].last_rtime segments in the scoreboard.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| apache | http_server | * | |
| debian | debian_linux | 2.2 | |
| debian | debian_linux | 3.0 |
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"lang": "en",
"value": "The shared memory scoreboard in the HTTP daemon for Apache 1.3.x before 1.3.27 allows any user running as the Apache UID to send a SIGUSR1 signal to any process as root, resulting in a denial of service (process kill) or possibly other behaviors that would not normally be allowed, by modifying the parent[].pid and parent[].last_rtime segments in the scoreboard."
},
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"value": "La tabla de puntuaciones (scoreboard) en memoria compartida del demonio HTTP en Apache 1.3.x anteriores a 1.3.27 permite a cualquier usuario corriendo con la UID de Apache enviar un se\u00f1as SIGUSR1 a cualquier proceso como root, resultando en un a denegaci\u00f3n de servicio (muerte de proceso) o posiblemente otros comportamientos no no serian permitidos normalmente, mediane la modificaci\u00f3n de los segmentos parent[].pid y parent[].last_rtime en los segmentos de la tabla de puntuaciones."
}
],
"id": "CVE-2002-0839",
"lastModified": "2026-06-16T21:58:14.063",
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"baseSeverity": "HIGH",
"cvssData": {
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"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.2,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
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"exploitabilityScore": 3.9,
"impactScore": 10.0,
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"vendorComments": [
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"comment": "Fixed in Apache HTTP Server 1.3.27:\nhttp://httpd.apache.org/security/vulnerabilities_13.html",
"lastModified": "2008-07-02T00:00:00",
"organization": "Apache"
}
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"vulnStatus": "Modified",
"weaknesses": [
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"lang": "en",
"value": "NVD-CWE-noinfo"
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}
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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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