FKIE_CVE-2024-34702
Vulnerability from fkie_nvd - Published: 2024-07-08 17:15 - Updated: 2024-11-21 09:19
Severity ?
Summary
Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. Prior to 3.5.0 and 2.19.5, checking name constraints in X.509 certificates is quadratic in the number of names and name constraints. An attacker who presented a certificate chain which contained a very large number of names in the SubjectAlternativeName, signed by a CA certificate which contained a large number of name constraints, could cause a denial of service. The problem has been addressed in Botan 3.5.0 and a partial backport has also been applied and is included in Botan 2.19.5.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. Prior to 3.5.0 and 2.19.5, checking name constraints in X.509 certificates is quadratic in the number of names and name constraints. An attacker who presented a certificate chain which contained a very large number of names in the SubjectAlternativeName, signed by a CA certificate which contained a large number of name constraints, could cause a denial of service. The problem has been addressed in Botan 3.5.0 and a partial backport has also been applied and is included in Botan 2.19.5."
},
{
"lang": "es",
"value": "Botan es una librer\u00eda de criptograf\u00eda C++. Los certificados X.509 pueden identificar curvas el\u00edpticas utilizando un identificador de objeto o una codificaci\u00f3n expl\u00edcita de los par\u00e1metros. Antes de 3.5.0 y 2.19.5, la verificaci\u00f3n de las restricciones de nombres en los certificados X.509 era cuadr\u00e1tica en el n\u00famero de nombres y restricciones de nombres. Un atacante que presentara una cadena de certificados que contuviera una gran cantidad de nombres en el SubjectAlternativeName, firmado por un certificado de CA que contuviera una gran cantidad de restricciones de nombres, podr\u00eda provocar una denegaci\u00f3n de servicio. El problema se solucion\u00f3 en Botan 3.5.0 y tambi\u00e9n se aplic\u00f3 un backport parcial que se incluye en Botan 2.19.5."
}
],
"id": "CVE-2024-34702",
"lastModified": "2024-11-21T09:19:13.673",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"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:L",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
},
"published": "2024-07-08T17:15:11.233",
"references": [
{
"source": "security-advisories@github.com",
"url": "https://github.com/randombit/botan/commit/21dccc8fef18c165ba3301d850ac61521f85637e"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/randombit/botan/commit/39535f13c322f56aa3da2f44b2b6abb8619a82ac"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/randombit/botan/commit/477822a2d10f02d8ba46c9d8a5132f25843f5cc1"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/randombit/botan/commit/7606d70d3a2ac7114476ec2651ca0243c4536fdf"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/randombit/botan/commit/c3264821b9f6286ee4e6e3e06826f6b7177e6d41"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/randombit/botan/commit/ff704b12e6fa351aaedd07bffdc91722e84586b8"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/randombit/botan/pull/4034"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/randombit/botan/pull/4045"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/randombit/botan/pull/4047"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/randombit/botan/pull/4052"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/randombit/botan/pull/4186"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/randombit/botan/pull/4187"
},
{
"source": "security-advisories@github.com",
"url": "https://github.com/randombit/botan/security/advisories/GHSA-5gg9-hqpr-r58j"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/randombit/botan/commit/21dccc8fef18c165ba3301d850ac61521f85637e"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/randombit/botan/commit/39535f13c322f56aa3da2f44b2b6abb8619a82ac"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/randombit/botan/commit/477822a2d10f02d8ba46c9d8a5132f25843f5cc1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/randombit/botan/commit/7606d70d3a2ac7114476ec2651ca0243c4536fdf"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/randombit/botan/commit/c3264821b9f6286ee4e6e3e06826f6b7177e6d41"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/randombit/botan/commit/ff704b12e6fa351aaedd07bffdc91722e84586b8"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/randombit/botan/pull/4034"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/randombit/botan/pull/4045"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/randombit/botan/pull/4047"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/randombit/botan/pull/4052"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/randombit/botan/pull/4186"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/randombit/botan/pull/4187"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://github.com/randombit/botan/security/advisories/GHSA-5gg9-hqpr-r58j"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Awaiting Analysis",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-405"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
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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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