GSD-2023-24609
Vulnerability from gsd - Updated: 2023-12-13 01:20Details
Matrix SSL 4.x through 4.6.0 and Rambus TLS Toolkit have a length-subtraction integer overflow for Client Hello Pre-Shared Key extension parsing in the TLS 1.3 server. An attacked device calculates an SHA-2 hash over at least 65 KB (in RAM). With a large number of crafted TLS messages, the CPU becomes heavily loaded. This occurs in tls13VerifyBinder and tls13TranscriptHashUpdate.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2023-24609",
"id": "GSD-2023-24609"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
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"details": "Matrix SSL 4.x through 4.6.0 and Rambus TLS Toolkit have a length-subtraction integer overflow for Client Hello Pre-Shared Key extension parsing in the TLS 1.3 server. An attacked device calculates an SHA-2 hash over at least 65 KB (in RAM). With a large number of crafted TLS messages, the CPU becomes heavily loaded. This occurs in tls13VerifyBinder and tls13TranscriptHashUpdate.",
"id": "GSD-2023-24609",
"modified": "2023-12-13T01:20:57.921917Z",
"schema_version": "1.4.0"
}
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"value": "Matrix SSL 4.x through 4.6.0 and Rambus TLS Toolkit have a length-subtraction integer overflow for Client Hello Pre-Shared Key extension parsing in the TLS 1.3 server. An attacked device calculates an SHA-2 hash over at least 65 KB (in RAM). With a large number of crafted TLS messages, the CPU becomes heavily loaded. This occurs in tls13VerifyBinder and tls13TranscriptHashUpdate."
}
]
},
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"value": "n/a"
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"name": "https://www.telekom.com/en/company/data-privacy-and-security/news/advisories-504842",
"refsource": "MISC",
"url": "https://www.telekom.com/en/company/data-privacy-and-security/news/advisories-504842"
},
{
"name": "https://www.rambus.com/security/software-protocols/tls-toolkit/",
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"url": "https://www.rambus.com/security/software-protocols/tls-toolkit/"
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"value": "Matrix SSL 4.x through 4.6.0 and Rambus TLS Toolkit have a length-subtraction integer overflow for Client Hello Pre-Shared Key extension parsing in the TLS 1.3 server. An attacked device calculates an SHA-2 hash over at least 65 KB (in RAM). With a large number of crafted TLS messages, the CPU becomes heavily loaded. This occurs in tls13VerifyBinder and tls13TranscriptHashUpdate."
},
{
"lang": "es",
"value": "Matrix SSL 4.x a 4.6.0 y Rambus TLS Toolkit tienen un desbordamiento de enteros de sustracci\u00f3n de longitud para el an\u00e1lisis de la extensi\u00f3n Client Hello Pre-Shared Key en el servidor TLS 1.3. Un dispositivo atacado calcula un hash SHA-2 en al menos 65 KB (en RAM). Con una gran cantidad de mensajes TLS manipulados, la CPU se carga mucho. Esto ocurre en tls13VerifyBinder y tls13TranscriptHashUpdate."
}
],
"id": "CVE-2023-24609",
"lastModified": "2024-01-03T20:34:37.670",
"metrics": {
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"published": "2023-12-22T04:15:08.673",
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}
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Sightings
| Author | Source | Type | Date |
|---|
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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