FKIE_CVE-2010-2524
Vulnerability from fkie_nvd - Published: 2010-09-08 20:00 - Updated: 2026-06-16 23:20
Severity
Summary
The DNS resolution functionality in the CIFS implementation in the Linux kernel before 2.6.35, when CONFIG_CIFS_DFS_UPCALL is enabled, relies on a user's keyring for the dns_resolver upcall in the cifs.upcall userspace helper, which allows local users to spoof the results of DNS queries and perform arbitrary CIFS mounts via vectors involving an add_key call, related to a "cache stuffing" issue and MS-DFS referrals.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| vmware | esx | 4.0 | |
| vmware | esx | 4.1 | |
| canonical | ubuntu_linux | 6.06 | |
| canonical | ubuntu_linux | 8.04 | |
| canonical | ubuntu_linux | 9.04 | |
| canonical | ubuntu_linux | 9.10 | |
| canonical | ubuntu_linux | 10.04 | |
| canonical | ubuntu_linux | 10.10 | |
| suse | suse_linux_enterprise_desktop | 11 | |
| suse | suse_linux_enterprise_server | 11 |
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"source": "secalert@redhat.com"
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"lang": "en",
"value": "The DNS resolution functionality in the CIFS implementation in the Linux kernel before 2.6.35, when CONFIG_CIFS_DFS_UPCALL is enabled, relies on a user\u0027s keyring for the dns_resolver upcall in the cifs.upcall userspace helper, which allows local users to spoof the results of DNS queries and perform arbitrary CIFS mounts via vectors involving an add_key call, related to a \"cache stuffing\" issue and MS-DFS referrals."
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"value": "La funcionalidad de resoluci\u00f3n DNS en el kernel de Linux anterior a v2.6.35, cuando CONFIG_CIFS_DFS_UPCALL est\u00e1 activado, cuenta con el \"keyring\" de usuario para la \"upcall\" dns_resolver en el espacio de usuario cifs.upcall, lo que permite a usuarios locales secuestrar los resultados de las consultas DNS y realizar montajes (mounts) CIFS de su elecci\u00f3n a trav\u00e9s de vectores que involucran una llamada add_key, relacionado con un cuesti\u00f3n de relleno de cach\u00e9 (stuffing) y referencias MS-DFS."
}
],
"id": "CVE-2010-2524",
"lastModified": "2026-06-16T23:20:55.073",
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"accessVector": "LOCAL",
"authentication": "NONE",
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"baseScore": 4.6,
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"vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
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"published": "2010-09-08T20:00:02.823",
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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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