CVE-2009-2957 (GCVE-0-2009-2957)
Vulnerability from cvelistv5 – Published: 2009-09-02 15:00 – Updated: 2024-08-07 06:07
VLAI
EPSS
VEX
Summary
Heap-based buffer overflow in the tftp_request function in tftp.c in dnsmasq before 2.50, when --enable-tftp is used, might allow remote attackers to execute arbitrary code via a long filename in a TFTP packet, as demonstrated by a read (aka RRQ) request.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
9 references
| URL | Tags |
|---|---|
| http://www.securityfocus.com/bid/36121 | vdb-entryx_refsource_BID |
| http://secunia.com/advisories/36563 | third-party-advisoryx_refsource_SECUNIA |
| http://www.ubuntu.com/usn/USN-827-1 | vendor-advisoryx_refsource_UBUNTU |
| https://bugzilla.redhat.com/show_bug.cgi?id=519020 | x_refsource_CONFIRM |
| https://oval.cisecurity.org/repository/search/def… | vdb-entrysignaturex_refsource_OVAL |
| http://www.thekelleys.org.uk/dnsmasq/CHANGELOG | x_refsource_CONFIRM |
| http://www.coresecurity.com/content/dnsmasq-vulne… | x_refsource_MISC |
| https://rhn.redhat.com/errata/RHSA-2010-0095.html | vendor-advisoryx_refsource_REDHAT |
| http://www.redhat.com/support/errata/RHSA-2009-12… | vendor-advisoryx_refsource_REDHAT |
Date Public
2009-08-31 00:00
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],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Heap-based buffer overflow in the tftp_request function in tftp.c in dnsmasq before 2.50, when --enable-tftp is used, might allow remote attackers to execute arbitrary code via a long filename in a TFTP packet, as demonstrated by a read (aka RRQ) request."
},
{
"lang": "es",
"value": "Desbordamiento de b\u00fafer basado en memoria din\u00e1mica en la funci\u00f3n tftp_request en tftp.c en dnsmasq anterior v2.50, cuando --enable-tftp es usado, puede permitir a atacantes remotos ejecutar c\u00f3digo a su elecci\u00f3n a trav\u00e9s de un nombre de fichero largo en un paquete TFTP, como queda demostrado en una lectura de respuesta (RRQ)."
}
],
"id": "CVE-2009-2957",
"lastModified": "2026-04-23T00:35:47.467",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2009-09-02T15:30:01.407",
"references": [
{
"source": "cve@mitre.org",
"url": "http://secunia.com/advisories/36563"
},
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"tags": [
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},
{
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],
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},
{
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"url": "http://www.ubuntu.com/usn/USN-827-1"
},
{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=519020"
},
{
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"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10538"
},
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
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{
"description": [
{
"lang": "en",
"value": "CWE-119"
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],
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},
"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2025-11-21T13:10:47+00:00",
"cve": "CVE-2009-2957",
"id": "CVE-2009-2957",
"initial_release_date": "2009-08-31T00:00:00+00:00",
"product_status:fixed": "22",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "dnsmasq: multiple vulnerabilities in TFTP server",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2009/cve-2009-2957.json",
"version": "3"
}
}
}
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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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