FKIE_CVE-2011-2189
Vulnerability from fkie_nvd - Published: 2011-10-10 10:55 - Updated: 2026-06-16 23:30
Severity
Summary
net/core/net_namespace.c in the Linux kernel 2.6.32 and earlier does not properly handle a high rate of creation and cleanup of network namespaces, which makes it easier for remote attackers to cause a denial of service (memory consumption) via requests to a daemon that requires a separate namespace per connection, as demonstrated by vsftpd.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| redhat | enterprise_linux | 6.0 | |
| redhat | enterprise_mrg | 2.0 | |
| canonical | ubuntu_linux | 10.04 | |
| canonical | ubuntu_linux | 10.10 | |
| canonical | ubuntu_linux | 11.04 | |
| canonical | ubuntu_linux | 11.10 | |
| debian | debian_linux | 5.0 | |
| debian | debian_linux | 6.0 | |
| debian | debian_linux | 7.0 |
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"source": "secalert@redhat.com"
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"value": "net / core / net_namespace.c en el kernel de Linux v2.6.32 y anteriores no maneja adecuadamente una alta tasa de creaci\u00f3n y limpieza de los espacios de nombres de red, lo cual lo hace m\u00e1s f\u00e1cil para los atacantes remotos provocar una denegaci\u00f3n de servicio (consumo de memoria) a trav\u00e9s de peticiones a un demonio que requiere un espacio de nombres separados por conexi\u00f3n, como se demuestra por vsftpd."
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"lastModified": "2026-06-16T23:30:53.227",
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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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