FKIE_CVE-2008-1923
Vulnerability from fkie_nvd - Published: 2008-04-23 16:05 - Updated: 2026-06-16 22:52
Severity
Summary
The IAX2 channel driver (chan_iax2) in Asterisk 1.2 before revision 72630 and 1.4 before revision 65679, when configured to allow unauthenticated calls, sends "early audio" to an unverified source IP address of a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed NEW message.
References
Impacted products
{
"affected": [
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"vendor": "n/a",
"versions": [
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],
"source": "cve@mitre.org"
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The IAX2 channel driver (chan_iax2) in Asterisk 1.2 before revision 72630 and 1.4 before revision 65679, when configured to allow unauthenticated calls, sends \"early audio\" to an unverified source IP address of a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed NEW message."
},
{
"lang": "es",
"value": "El IAX2 channel driver (chan_iax2) en Asterisk 1.2 anterior a la revisi\u00f3n 72630 y 1.4 anterior a la revisi\u00f3n 65679, cuando est\u00e1 configurado para permitir llamadas sin autenticaci\u00f3n, env\u00eda \"early audio\" a una IP sin verificar de un mensaje NEW, lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (amplificaci\u00f3n del tr\u00e1fico) a trav\u00e9s de un mensaje NEW falseado."
}
],
"id": "CVE-2008-1923",
"lastModified": "2026-06-16T22:52:45.520",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 7.1,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 6.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2008-04-23T16:05:00.000",
"references": [
{
"source": "cve@mitre.org",
"url": "http://bugs.digium.com/view.php?id=10078"
},
{
"source": "cve@mitre.org",
"url": "http://downloads.digium.com/pub/security/AST-2008-006.html"
},
{
"source": "cve@mitre.org",
"url": "http://www.altsci.com/concepts/page.php?s=asteri\u0026p=1"
},
{
"source": "cve@mitre.org",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/42049"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://bugs.digium.com/view.php?id=10078"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://downloads.digium.com/pub/security/AST-2008-006.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.altsci.com/concepts/page.php?s=asteri\u0026p=1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/42049"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-16"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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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