cve-2023-5363
Vulnerability from cvelistv5
Published
2023-10-24 15:31
Modified
2024-10-14 14:55
Severity ?
Summary
Incorrect cipher key & IV length processing
References
openssl-security@openssl.orghttps://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=0df40630850fb2740e6be6890bb905d3fc623b2dMailing List, Patch, Third Party Advisory
openssl-security@openssl.orghttps://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=5f69f5c65e483928c4b28ed16af6e5742929f1eePatch, Vendor Advisory
openssl-security@openssl.orghttps://www.openssl.org/news/secadv/20231024.txtVendor Advisory
Impacted products
OpenSSLOpenSSL
Show details on NVD website

To clipboard 

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Al llamar a EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() or EVP_CipherInit_ex2(), la matriz OSSL_PARAM proporcionada se procesa despu\u00e9s de que se hayan establecido la clave y el IV. Cualquier modificaci\u00f3n en la longitud de la clave, a trav\u00e9s del par\u00e1metro \\\"keylen\\\" o la longitud del IV, a trav\u00e9s del par\u00e1metro \\\"ivlen\\\", dentro de la matriz OSSL_PARAM no tendr\u00e1 efecto seg\u00fan lo previsto, lo que podr\u00eda provocar el truncamiento o la sobrelectura de estos valores. Los siguientes cifrados y modos de cifrado se ven afectados: RC2, RC4, RC5, CCM, GCM y OCB. Para los modos de cifrado CCM, GCM y OCB, el truncamiento del IV puede provocar una p\u00e9rdida de confidencialidad. Por ejemplo, al seguir la gu\u00eda de la secci\u00f3n 8.2.1 SP 800-38D del NIST para construir un IV determinista para AES en modo GCM, el truncamiento de la parte del contador podr\u00eda llevar a la reutilizaci\u00f3n del IV. 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  }
}


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