CVE-2023-6237
Vulnerability from cvelistv5
Published
2024-04-25 06:27
Modified
2024-11-01 14:28
Severity ?
Summary
Excessive time spent checking invalid RSA public keys
References
openssl-security@openssl.orghttps://github.com/openssl/openssl/commit/0b0f7abfb37350794a4b8960fafc292cd5d1b84d
openssl-security@openssl.orghttps://github.com/openssl/openssl/commit/18c02492138d1eb8b6548cb26e7b625fb2414a2a
openssl-security@openssl.orghttps://github.com/openssl/openssl/commit/a830f551557d3d66a84bbb18a5b889c640c36294
openssl-security@openssl.orghttps://www.openssl.org/news/secadv/20240115.txt
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2024/03/11/1
af854a3a-2127-422b-91ae-364da2661108https://github.com/openssl/openssl/commit/0b0f7abfb37350794a4b8960fafc292cd5d1b84d
af854a3a-2127-422b-91ae-364da2661108https://github.com/openssl/openssl/commit/18c02492138d1eb8b6548cb26e7b625fb2414a2a
af854a3a-2127-422b-91ae-364da2661108https://github.com/openssl/openssl/commit/a830f551557d3d66a84bbb18a5b889c640c36294
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20240531-0007/
af854a3a-2127-422b-91ae-364da2661108https://www.openssl.org/news/secadv/20240115.txt
Impacted products
Vendor Product Version
Show details on NVD website

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However, if n is an overly large prime,\\nthen this computation would take a long time.\\n\\nAn application that calls EVP_PKEY_public_check() and supplies an RSA key\\nobtained from an untrusted source could be vulnerable to a Denial of Service\\nattack.\\n\\nThe function EVP_PKEY_public_check() is not called from other OpenSSL\\nfunctions however it is called from the OpenSSL pkey command line\\napplication. For that reason that application is also vulnerable if used\\nwith the \u0027-pubin\u0027 and \u0027-check\u0027 options on untrusted data.\\n\\nThe OpenSSL SSL/TLS implementation is not affected by this issue.\\n\\nThe OpenSSL 3.0 and 3.1 FIPS providers are affected by this issue.\"},{\"lang\":\"es\",\"value\":\"Resumen del problema: la comprobaci\u00f3n de claves p\u00fablicas RSA inv\u00e1lidas excesivamente largas puede llevar mucho tiempo. Resumen de impacto: las aplicaciones que utilizan la funci\u00f3n EVP_PKEY_public_check() para comprobar las claves p\u00fablicas RSA pueden experimentar grandes retrasos. Cuando la clave que se est\u00e1 verificando se obtuvo de una fuente que no es confiable, esto puede dar lugar a una denegaci\u00f3n de servicio. Cuando se llama a la funci\u00f3n EVP_PKEY_public_check() en claves p\u00fablicas RSA, se realiza un c\u00e1lculo para confirmar que el m\u00f3dulo RSA, n, es compuesto. Para claves RSA v\u00e1lidas, n es un producto de dos o m\u00e1s n\u00fameros primos grandes y este c\u00e1lculo se completa r\u00e1pidamente. Sin embargo, si n es un n\u00famero primo demasiado grande, entonces este c\u00e1lculo llevar\u00eda mucho tiempo. Una aplicaci\u00f3n que llama a EVP_PKEY_public_check() y proporciona una clave RSA obtenida de una fuente que no es de confianza podr\u00eda ser vulnerable a un ataque de denegaci\u00f3n de servicio. 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}


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