fkie_cve-2009-2726
Vulnerability from fkie_nvd
Published
2009-08-12 10:30
Modified
2024-11-21 01:05
Severity ?
Summary
The SIP channel driver in Asterisk Open Source 1.2.x before 1.2.34, 1.4.x before 1.4.26.1, 1.6.0.x before 1.6.0.12, and 1.6.1.x before 1.6.1.4; Asterisk Business Edition A.x.x, B.x.x before B.2.5.9, C.2.x before C.2.4.1, and C.3.x before C.3.1; and Asterisk Appliance s800i 1.2.x before 1.3.0.3 does not use a maximum width when invoking sscanf style functions, which allows remote attackers to cause a denial of service (stack memory consumption) via SIP packets containing large sequences of ASCII decimal characters, as demonstrated via vectors related to (1) the CSeq value in a SIP header, (2) large Content-Length value, and (3) SDP.
References
Impacted products
{
"configurations": [
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"cveTags": [],
"descriptions": [
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"lang": "en",
"value": "The SIP channel driver in Asterisk Open Source 1.2.x before 1.2.34, 1.4.x before 1.4.26.1, 1.6.0.x before 1.6.0.12, and 1.6.1.x before 1.6.1.4; Asterisk Business Edition A.x.x, B.x.x before B.2.5.9, C.2.x before C.2.4.1, and C.3.x before C.3.1; and Asterisk Appliance s800i 1.2.x before 1.3.0.3 does not use a maximum width when invoking sscanf style functions, which allows remote attackers to cause a denial of service (stack memory consumption) via SIP packets containing large sequences of ASCII decimal characters, as demonstrated via vectors related to (1) the CSeq value in a SIP header, (2) large Content-Length value, and (3) SDP."
},
{
"lang": "es",
"value": "El driver SIP channel en Asterisk Open Source v1.2.x anterior a v1.2.34, v1.4.x anterior a v1.4.26.1, v1.6.0.x anterior a v1.6.0.12, y v1.6.1.x anterior a v1.6.1.4; Asterisk Business Edition vA.x.x, vB.x.x anterior a vB.2.5.9, vC.2.x anterior a vC.2.4.1, y vC.3.x anterior a vC.3.1; y Asterisk Appliance s800i v1.2.x anterior a v1.3.0.3, no utiliza el ancho m\u00e1ximo cuando se invocan las funciones de estilo sscanf, lo que permite a atacantes remotos producir una denegaci\u00f3n de servicio (agotamiento de la pila de memoria) a trav\u00e9s de paquetes SIP que contienen secuencias largas de caracteres ASCII decimales, como se demostr\u00f3 a trav\u00e9s de vectores relacionados con (1) el valor CSeq en una cabecera SIP, (2) valores Content-Length, y (3) SDP."
}
],
"id": "CVE-2009-2726",
"lastModified": "2024-11-21T01:05:36.590",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.8,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
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"exploitabilityScore": 10.0,
"impactScore": 6.9,
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"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2009-08-12T10:30:01.110",
"references": [
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"tags": [
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{
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{
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"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
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"value": "CWE-770"
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"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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